Silicic acid (H2SiO3), calcium salt (1:1) Property

Melting point:

1540°C

Density 

2.905

form 

Powder

Specific Gravity

2.905

color 

White

Water Solubility 

Insoluble in water.

Merck 

14,1702

Solubility Product Constant (Ksp)

pKsp: 7.6

CAS DataBase Reference

10101-39-0

EPA Substance Registry System

Calcium metasilicate (10101-39-0)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37

Safety Statements 

22-26-37/39

WGK Germany 

3

RTECS 

VV9170000

TSCA 

Yes

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

Silicic acid (H2SiO3), calcium salt (1:1) Chemical Properties,Usage,Production

Uses

Calcium silicate is used in ceramics, paint extenders, in chromatography, as a filler in plastics, cements and binder for refractory material.Calcium silicate is used as filler in the manufacture of paper and some types of plastics. It is also used as a food additive and a refractory material in industrial furnaces. Calcium silicate is also used for the insulation of pipes and boards. This compound has also been used in the manufacture of paints, coating materials, cosmetics, fertilizers and pharmaceutical products like antacids. It is used in high temperature insulation materials and as an alternative to asbestos.