| Identification | More | [Name]
CALCIUM SILICATE | [CAS]
1344-95-2 | [Synonyms]
CALCIUM METASILICATE
CALCIUM-M-SILICATE
CALCIUM SILICATE
CALCIUM SILICATE, META
CALCIUM SILICATE, ORTHO
CALFLO E
SILICIC ACID CALCIUM SALT
VANFRE IL-2
VANSIL(R) G
VANSIL(R) W10
VANSIL W-10
VANSIL W-20
VANSIL W30
WOLLASTONITE
calciumhydrosilicate
calciumhydrosilicate[qr]
calciummetasilicate[qr]
calciummonosilicate
calciummonosilicate[qr]
calciumpolysilicate | [EINECS(EC#)]
215-710-8 | [Molecular Formula]
CaO3Si | [MDL Number]
MFCD00015979 | [Molecular Weight]
116.16 | [MOL File]
1344-95-2.mol |
| Chemical Properties | Back Directory | [Appearance]
white or cream powder | [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 | [color ]
white monoclinic crystals, crystalline | [Specific Gravity]
2.9 | [Odor]
at 100.00?%. odorless | [PH]
9.5-11.5 (5% in H2O) | [Stability:]
Stable. | [Water Solubility ]
insoluble H2O [HAW93] | [Merck ]
13,1707 | [LogP]
0.651 (est) | [Uses]
Calcium Silicate is an anticaking agent that exists in different forms,
which are insoluble in water. it is used in salt to enhance flowability
under extremely high humidity conditions. it is also used in baking
powder and fabricated chips to absorb water or other liquids. | [CAS DataBase Reference]
1344-95-2(CAS DataBase Reference) | [EPA Substance Registry System]
Calcium silicate (1344-95-2) |
| Hazard Information | Back Directory | [Chemical Properties]
white or cream powder | [Hazard]
Irritating dust. Use in foods restricted to
5% in baking powder, 2% in table salt. Upper res-
piratory tract irritant. Questionable carcinogen.
| [Description]
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. | [Description]
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+ hea?CaSiO3 | [Application]
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. | [Preparation]
Calcium silicate is a naturally occurring mineral, but for commercial applications it is usually prepared from lime and diatomaceous earth under carefully controlled conditions. | [Production Methods]
When used in oral formulations, calcium silicate is practically
nontoxic. Inhalation of the dust particles may cause respiratory
tract irritation. | [Health Hazard]
The toxicity of calcium silicate
depends on particle size, aspect ratio, and
amount of silica and respirable fiber.1 Synthetic
nonfibrous calcium silicate is considered to be
a nuisance dust.
Skin irritation was reported in a worker
exposed to an atmosphere permeated with calcium silicate.1 A study of 104 wallastonite (a
naturally occurring calcium silicate mineral)
miners showed no relationship between the
prevalence of chronic bronchitis or airflow
obstruction with increasing exposure.1 In a
cohort mortality study of wollastonite quarry
workers the observed numbers of deaths from
all cancers combined and lung cancer were
lower than expected. | [Flammability and Explosibility]
Notclassified | [Pharmaceutical Applications]
Calcium silicate is used as a filler aid for oral pharmaceuticals. It has
also been used in pharmaceutical preparations as an antacid.
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). | [Industrial uses]
Calcium silicate compounds belong to a complicated class of silicates. Among their many industrial applications, calcium silicates are heavily used as a building material as they constitute the main ingredient in today’s cement clinker. | [Safety]
GRAS listed. Included in the FDA Inactive Ingredients Database
(oral dosage forms). Included in nonparenteral (oral, orodispersible,
effervescent and enteric-coated tablets) formulations licensed in the
UK. | [storage]
Calcium silicate is chemically stable and nonflammable, but it
should be protected from moisture. Store in airtight containers in a
cool, dry place. | [Incompatibilities]
Calcium silicate is a naturally occurring mineral, but for commercial
applications it is usually prepared from lime and diatomaceous
earth under carefully controlled conditions. | [Regulatory Status]
Calcium diorthosilicate; calcium trisilicate. |
| Safety Data | Back Directory | [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 .
S37/39:Wear suitable gloves and eye/face protection . | [WGK Germany ]
3
| [RTECS ]
VV9170000
| [Safety Profile]
A nuisance dust | [Hazardous Substances Data]
1344-95-2(Hazardous Substances Data) |
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