Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:glass
|
| gptkbp:alsoKnownAs |
Crystal Glass
|
| gptkbp:color |
Colorless
Can be colored with metal oxides |
| gptkbp:component |
gptkb:Prisms
Chandeliers Cut Glass Fine Tableware Radiation Shielding Windows |
| gptkbp:contains |
Lead Oxide
|
| gptkbp:density |
Higher than ordinary glass
|
| gptkbp:hasProperty |
High Dispersion
High Refractive Index |
| gptkbp:inventedBy |
17th Century
George Ravenscroft |
| gptkbp:leadContent |
Typically 18-40% by weight
|
| gptkbp:manufacturer |
gptkb:Czech_Republic
gptkb:Ireland gptkb:United_Kingdom |
| gptkbp:meltingPoint |
Lower than Soda-Lime Glass
|
| gptkbp:notableBrand |
gptkb:Swarovski
gptkb:Waterford_Crystal gptkb:Baccarat |
| gptkbp:refractiveIndex |
1.7–1.8
|
| gptkbp:regulates |
gptkb:European_Union
gptkb:United_States |
| gptkbp:riskFactor |
gptkb:Lead_Poisoning
|
| gptkbp:usedFor |
Decorative Glassware
Optical Lenses Radiation Shielding |
| gptkbp:bfsParent |
gptkb:Electromagnetic_Calorimeters
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Lead Glass
|