Statements (49)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:chemical_compound
|
| gptkbp:appearance |
white solid
|
| gptkbp:bandGap |
11.8 eV
|
| gptkbp:boilingPoint |
2500 °C
|
| gptkbp:CASNumber |
7789-75-5
|
| gptkbp:chemicalFormula |
CaF2
|
| gptkbp:color |
colorless (pure)
various colors (impure, as fluorite) |
| gptkbp:crystalSystem |
cubic
|
| gptkbp:density |
3.18 g/cm³
|
| gptkbp:EC_number |
232-188-7
|
| gptkbp:foundIn |
natural mineral deposits
toothpaste (as trace impurity in some sources) |
| gptkbp:hardnessMohs |
4 (as fluorite)
|
| https://www.w3.org/2000/01/rdf-schema#label |
Calcium fluoride
|
| gptkbp:insoluble_in |
gptkb:beer
gptkb:acetone alkaloid |
| gptkbp:isSolubleIn |
ammonium salt solutions
|
| gptkbp:IUPACName |
calcium difluoride
|
| gptkbp:lattice_structure |
fluorite structure
|
| gptkbp:meltingPoint |
1418 °C
|
| gptkbp:mineral_form |
gptkb:fluorite
|
| gptkbp:molecularWeight |
78.07 g/mol
|
| gptkbp:primaryUse |
metallurgy
source of fluorine optical material production of hydrofluoric acid |
| gptkbp:producedBy |
reaction of calcium carbonate and hydrofluoric acid
|
| gptkbp:PubChem_CID |
24540
|
| gptkbp:refractiveIndex |
1.433 (at 589 nm)
|
| gptkbp:riskFactor |
irritant
|
| gptkbp:solubility |
sparingly soluble
|
| gptkbp:thermal_conductivity |
9.71 W/(m·K) at 300 K
|
| gptkbp:toxicity |
higher (as dust or powder)
low (as solid) |
| gptkbp:used_in |
gptkb:ceramics
spectroscopy aluminum smelting glass manufacturing enamels infrared optics UV optics metallurgical flux water fluoridation (rarely, as a source of fluoride ions) microscope objectives welding rod coatings |
| gptkbp:bfsParent |
gptkb:Ionic_compound
|
| gptkbp:bfsLayer |
6
|