| 
                                    
                                        gptkbp:instanceOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:hydrocarbon
                                        
                                         
                                    
                                        
                                            gptkb:refrigerant
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:appearance
                                    
                                 | 
                                
                                    
                                        
                                            
                                            colorless gas
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:aroma
                                    
                                 | 
                                
                                    
                                        
                                            
                                            odorless (commercial grade has odorant added)
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:autoignitionTemperature
                                    
                                 | 
                                
                                    
                                        
                                            
                                            470 °C
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:boilingPoint
                                    
                                 | 
                                
                                    
                                        
                                            
                                            -42.1 °C
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:CASNumber
                                    
                                 | 
                                
                                    
                                        
                                            
                                            74-98-6
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:chemicalFormula
                                    
                                 | 
                                
                                    
                                        
                                            
                                            C3H8
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:criticalFor
                                    
                                 | 
                                
                                    
                                        
                                            
                                            4.25 MPa
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:criticalTemperature
                                    
                                 | 
                                
                                    
                                        
                                            
                                            96.7 °C
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:density
                                    
                                 | 
                                
                                    
                                        
                                            
                                            1.83 kg/m³ (gas at 0°C, 1 atm)
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:EC_number
                                    
                                 | 
                                
                                    
                                        
                                            
                                            200-827-9
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:environmentalImpact
                                    
                                 | 
                                
                                    
                                        
                                            
                                            low GWP, zero ODP
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:explosiveLimits
                                    
                                 | 
                                
                                    
                                        
                                            
                                            2.1–9.5% (in air)
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:firstUsedAsRefrigerant
                                    
                                 | 
                                
                                    
                                        
                                            
                                            early 20th century
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:flammability
                                    
                                 | 
                                
                                    
                                        
                                            
                                            highly flammable
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:GWP
                                    
                                 | 
                                
                                    
                                        
                                            
                                            3
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:hasInChIKey
                                    
                                 | 
                                
                                    
                                        
                                            
                                            ATUOYWHBWRKTHZ-UHFFFAOYSA-N
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:includesGroup
                                    
                                 | 
                                
                                    
                                        
                                            
                                            alkanes
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:isomerOf
                                    
                                 | 
                                
                                    
                                        
                                            
                                            n-propane
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:meltingPoint
                                    
                                 | 
                                
                                    
                                        
                                            
                                            -187.7 °C
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:molecularWeight
                                    
                                 | 
                                
                                    
                                        
                                            
                                            44.10 g/mol
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:ODP
                                    
                                 | 
                                
                                    
                                        
                                            
                                            0
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:producedBy
                                    
                                 | 
                                
                                    
                                        
                                            
                                            petroleum refining
                                        
                                        
                                         
                                    
                                        
                                            
                                            natural gas processing
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:PubChem_CID
                                    
                                 | 
                                
                                    
                                        
                                            
                                            6334
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:refrigerantNumber
                                    
                                 | 
                                
                                    
                                        
                                            
                                            R-290
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:refrigerantType
                                    
                                 | 
                                
                                    
                                        
                                            
                                            natural refrigerant
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:relatedTo
                                    
                                 | 
                                
                                    
                                        
                                            
                                            methane
                                        
                                        
                                         
                                    
                                        
                                            
                                            butane
                                        
                                        
                                         
                                    
                                        
                                            
                                            ethane
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:replacedBy
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:R-134a
                                        
                                         
                                    
                                        
                                            gptkb:R-22
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:riskFactor
                                    
                                 | 
                                
                                    
                                        
                                            
                                            H280: Contains gas under pressure; may explode if heated
                                        
                                        
                                         
                                    
                                        
                                            
                                            fire and explosion
                                        
                                        
                                         
                                    
                                        
                                            
                                            H220: Extremely flammable gas
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:solubility
                                    
                                 | 
                                
                                    
                                        
                                            
                                            slightly soluble
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:storage
                                    
                                 | 
                                
                                    
                                        
                                            
                                            pressurized tanks
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:UNNumber
                                    
                                 | 
                                
                                    
                                        
                                            
                                            UN1978
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:usedAs
                                    
                                 | 
                                
                                    
                                        
                                            
                                            propellant
                                        
                                        
                                         
                                    
                                        
                                            
                                            LPG (liquefied petroleum gas)
                                        
                                        
                                         
                                    
                                        
                                            
                                            feedstock in chemical synthesis
                                        
                                        
                                         
                                    
                                        
                                            
                                            fuel for cooking
                                        
                                        
                                         
                                    
                                        
                                            
                                            fuel for heating
                                        
                                        
                                         
                                    
                                        
                                            
                                            fuel for vehicles
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:usedIn
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:gasoline
                                        
                                         
                                    
                                        
                                            
                                            air conditioning
                                        
                                        
                                         
                                    
                                        
                                            
                                            refrigeration
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:vaporPressure
                                    
                                 | 
                                
                                    
                                        
                                            
                                            853 kPa (at 21.1 °C)
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsParent
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:HCFC-22
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsLayer
                                    
                                 | 
                                
                                    
                                        
                                            
                                            8
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        https://www.w3.org/2000/01/rdf-schema#label
                                    
                                 | 
                                
                                    
                                        
                                            
                                            propane (R-290)
                                        
                                        
                                         
                                    
                                 |