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7699-41-4

Name SILICIC ACID
CAS 7699-41-4
EINECS(EC#) 215-683-2
Molecular Formula H2O3Si
MDL Number MFCD00054122
Molecular Weight 78.1
MOL File 7699-41-4.mol

Chemical Properties

Definition The jellylike precipitate obtained when sodium silicate solution is acidified. The proportion of water varies with the conditions of preparation and decreases gradually during drying and ignition, until relatively pure silica remains. During drying the je
Appearance Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
Melting point  1704℃
solubility  insoluble in H2O; soluble in HF
form  powder
color  White
Dielectric constant 2.0(Ambient)
Uses
Laboratory reagent and reinforcing agent in rubber.
CAS DataBase Reference 7699-41-4(CAS DataBase Reference)
EPA Substance Registry System Silicic acid (H2SiO3) (7699-41-4)

Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37:Irritating to eyes and respiratory system .
Safety Statements 
S22:Do not breathe dust .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
WGK Germany  3
RTECS  VV8853000
Safety Profile
An inhalation hazard. Poison by intravenous route. An eye irritant and nuisance dust. Questionable carcinogen. Mutation data reported. See also other silica entries and SILICATES

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