|
gptkbp:instance_of
|
gptkb:carbon_fiber
|
|
gptkbp:acidity
|
reacts with strong acids
|
|
gptkbp:appearance
|
gptkb:solid
|
|
gptkbp:chemical_formula
|
S8
|
|
gptkbp:color
|
gptkb:yellow
|
|
gptkbp:color_in_pure_form
|
bright yellow
|
|
gptkbp:composed_by
|
cooling of sulfur vapor
crystallization from solution
sublimation of sulfur
|
|
gptkbp:contains_allergens
|
gptkb:monoclinic_sulfur
plastic sulfur
sulfur vapor
|
|
gptkbp:cooling_system
|
0.2 W/(m· K)
|
|
gptkbp:discovered_by
|
gptkb:Johan_Gottlieb_Gahn
|
|
gptkbp:dissolved
|
insoluble
|
|
gptkbp:ecological_role
|
not biologically essential
|
|
gptkbp:environmental_impact
|
low environmental impact
|
|
gptkbp:financial_stability
|
stable at room temperature
|
|
gptkbp:historical_significance
|
first allotrope of sulfur identified
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
rhombic sulfur
|
|
gptkbp:industrial_importance
|
important in chemical industry
|
|
gptkbp:melting_point
|
113.7 ° C
444.6 ° C
|
|
gptkbp:molecular_geometry
|
cubic
|
|
gptkbp:notable_conductors
|
insulator
|
|
gptkbp:occurs_in
|
found in nature as a mineral
|
|
gptkbp:phase_at_room_temperature
|
gptkb:solid
|
|
gptkbp:phase_transition
|
melts to liquid sulfur
sublimes to gas
|
|
gptkbp:population_density
|
2.07 g/cm³
|
|
gptkbp:reaction_with_hydrogen
|
forms hydrogen sulfide
|
|
gptkbp:reaction_with_metals
|
forms metal sulfides
|
|
gptkbp:reaction_with_oxygen
|
burns to form sulfur dioxide
|
|
gptkbp:related_products
|
sulfuric acid
sulfur dioxide
sulfides
|
|
gptkbp:safety
|
non-toxic
irritant to skin and eyes
|
|
gptkbp:solubility_in_organic_solvents
|
soluble in carbon disulfide
|
|
gptkbp:storage
|
store in a cool, dry place
|
|
gptkbp:structure
|
orthorhombic
S8 rings
|
|
gptkbp:sublimation_point
|
160 ° C
|
|
gptkbp:transformation_temperature
|
95 ° C
|
|
gptkbp:uses
|
used in fertilizers
used in the production of pesticides
used in the production of sulfuric acid
used in the manufacture of matches
used in vulcanization of rubber
|
|
gptkbp:was_a_response_to
|
reacts with strong bases
|
|
gptkbp:weight
|
256.52 g/mol
|
|
gptkbp:bfsParent
|
gptkb:Sulphur
|
|
gptkbp:bfsLayer
|
7
|