Calcium silicate CAS#1344-95-2
CAS Number: 1344-95-2
Chemical Formula: CaO3Si
Synonyms:
CALFLO E
VANFRE IL-2
SILICIC ACID CALCIUM SALT
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Appearance: White Powder
Calcium silicate CAS#1344-95-2
Calcium Silicate is a hydrous or anhydrous silicate with varying proportions of calcium oxideand silica. many different calcium silicates occur in nature in mineral form (e.g.,wollastonite, afwillite, grammite). The stoichiometry of the hydrate in cement paste is variable and the state of the chemically and physically bound water in its structure is not clear. Thus, calcium silicate can be prepared by calcining the oxide with silica, SiO2, at an elevated temperature: CaO + SiO2+ heat→CaSiO3. Calcium orthosilicate is commonly used as a safe alternative to asbestos for high-temperature insulation materials. Industrial grade piping and equipment insulation are often fabricated from calcium orthosilicate.Calcium silicate occurs as a crystalline or amorphous white or off white material, and often exists in different hydrate forms. It consists of different ratios of CaO and SiO4, including tricalcium silicate (3CaO.SiO2) and dicalcium silicate Ca2SiO4. It is insoluble in water and forms a gel with inorganic acids. The pH of 5% suspension is 8.4~10.2.
Calcium silicate Chemical Properties |
Melting point | 1540℃ [CRC10] |
density | 2.9 g/mL at 25 °C (lit.) |
solubility | Practically insoluble in water; forms a gel with mineral acids. It can absorb up to 2.5 times its weight of liquids and still remain a free-flowing powder. |
form | white monoclinic crystals |
Specific Gravity | 2.9 |
color | white monoclinic crystals, crystalline |
Odor | at 100.00?%. odorless |
PH | 9.5-11.5 (5% in H2O) |
Water Solubility | insoluble H2O [HAW93] |
Merck | 13,1707 |
Stability: | Stable. |
Cosmetics Ingredients Functions | ABSORBENT |
LogP | 0.651 (est) |
CAS DataBase Reference | 1344-95-2(CAS DataBase Reference) |
EPA Substance Registry System | Calcium silicate (1344-95-2) |
Safety Information |
Hazard Codes | Xi |
Risk Statements | 36/37 |
Safety Statements | 22-26-37/39 |
OEB | B |
OEL | TWA: 10 mg/m3 (total) |
WGK Germany | 3 |
RTECS | VV9170000 |
TSCA | TSCA listed |
Hazardous Substances Data | 1344-95-2(Hazardous Substances Data) |
Product Application of Calcium silicate CAS#1344-95-2
The main applications of calcium silicate relate to its anticaking properties, and it has therefore been used in dusting powders and a range of different cosmetic products (e.g. face powders, eye shadow). It is also used as anticaking agent in table salt, foods, pharmaceuticals, and agricultural pesticides; replacement for asbestos in thermal insulation; Constituent (produced in situ) of lime glass, portland cement; reinforcing filler in elastomers and plastics; absorbent for liquids, gases, vapors; as anti-caking agent, suspension agent, pigment and pigment extender; binder for refractory material; in chromatography; in road construction.
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