Identification Chemical Properties Safety Data Raw materials And Preparation Products Hazard Information Material Safety Data Sheet(MSDS) Questions And Answer Well-known Reagent Company Product Information Supplier Related Products

14808-60-7

Name Silicon dioxide
CAS 14808-60-7
EINECS(EC#) 215-684-8
Molecular Formula O2Si
MDL Number MFCD00131613
Molecular Weight 60.0843
MOL File 14808-60-7.mol

Chemical Properties

Definition Crystallized silicon dioxide (silica).
Appearance Silicon dioxide/crystalline silica is a component of many mineral dusts and materials which melts to a glass at very high temperature.
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)
Stability: Stable.
Water Solubility  insoluble
Crystal Structure Quartz type
crystal system Three sides
Space group P3221
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.491340.491340.5405290901200.113
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
InChIKey VYPSYNLAJGMNEJ-UHFFFAOYSA-N
Uses
Silicon Dioxide is an anticaking agent, carrier, and dispersant that can absorb approximately 120% of its weight and remain free flowing. it is used in salt, flours, and powdered soups to prevent caking caused by moisture. it is also used in powdered coffee whitener, vanilla powder, baking powder, dried egg yolk, and tortilla chips. the usage level ranges from 1 to 2%. it is also termed silica, amorphous.
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 14808-60-7(EPA Substance)

Safety Data

Hazard Codes  Xn
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R48/20:Harmful: danger of serious damage to health by prolonged exposure through inhalation .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S24/25:Avoid contact with skin and eyes .
S22:Do not breathe dust .
OEB D
OEL TWA: 0.05 mg/m3
WGK Germany  3
RTECS  ZG6800000
TSCA  Yes
HS Code  25061000
Safety Profile
Confirmed carcinogen with experimental carcinogenic, tumorigenic, and neoplastigenic data. Experimental poison by intratracheal and intravenous routes. An inhalation hazard. Human systemic effects by inhalation: cough, dyspnea, liver effects. Incompatible with OF2, vinyl acetate. See also other silica entries
Hazardous Substances Data 14808-60-7(Hazardous Substances Data)
Toxicity
LDLo intravenous in dog: 20mg/kg
IDLA 25 mg/m3

Hazard Information

Material Safety Data Sheet(MSDS)

Questions And Answer

Well-known Reagent Company Product Information

Supplier