Melting point: |
1610 °C(lit.) |
Boiling point: |
2230 °C |
Density |
2.6 g/mL at 25 °C(lit.) |
refractive index |
n20/D 1.544(lit.) |
storage temp. |
no restrictions. |
solubility |
insoluble in H2O, acid solutions; soluble in HF |
form |
powder |
color |
white |
Specific Gravity |
2.2-2.6 |
PH |
5-8 (400g/l, H2O, 20℃)(slurry) |
Water Solubility |
insoluble |
Crystal Structure |
Quartz type |
crystal system |
Three sides |
Space group |
P3221 |
Lattice constant |
a/nm | b/nm | c/nm | α/o | β/o | γ/o | V/nm3 | 0.49134 | 0.49134 | 0.54052 | 90 | 90 | 120 | 0.113 |
|
Dielectric constant |
4.2(0.0℃) |
Exposure limits |
ACGIH: TWA 0.025 mg/m3 OSHA: TWA 50 μg/m3 NIOSH: IDLH 50 mg/m3; TWA 0.05 mg/m3 |
Stability: |
Stable. |
InChIKey |
VYPSYNLAJGMNEJ-UHFFFAOYSA-N |
CAS DataBase Reference |
14808-60-7(CAS DataBase Reference) |
IARC |
1 (Vol. Sup 7, 68, 100C) 2012 |
NIST Chemistry Reference |
Silicon oxide(14808-60-7) |
EPA Substance Registry System |
Quartz (14808-60-7) |