| Identification | Back Directory | [Name]
CALCIUM SILICATE | [CAS]
13983-17-0 | [Synonyms]
fw50
nyad
fw325
nyadg
nycor
CaSiO3
nyad10
nyad325
okenite
rivaite
vilnite
nycor200
nycor300
grammite
casiflux
CALFLO E
kemolit-n
nci-c55470
schalstein
cab-o-lite
gilbertite
VANSIL W30
VANSIL W-20
VANFRE IL-2
VANSIL(R) G
VANSIL W-10
tabularspar
wollastokup
kemolita-60
kemolitasb-3
gillebachite
Aedelforsite
dab-o-litep4
cab-o-litef1
cab-o-litep4
WOLLASTONITE
fractionated
VANSIL(R) W10
cab-o-lite100
cab-o-lite130
cab-o-lite160
fw200(mineral)
fw200[mineral]
tremin(mineral)
CALCIUM SILICATE
Microwollastonite
Wollastonite Dust
casifluxvp413-004
Pseudowollastonite
WOLLASTONITEFIBRES
CALCIUM-M-SILICATE
Wollastonite Powder
CALCIUM METASILICATE
CALCIUM SILICATE, META
Wollastonite(Ca(SiO3))
CALCIUM SILICATE, ORTHO
SILICIC ACID CALCIUM SALT
Wollastonite fibrous (f/ml)
C. I. Pigment White 28 (77230)
Wollastonite calcium silicates | [EINECS(EC#)]
237-772-5 | [Molecular Formula]
CaO3Si | [MDL Number]
MFCD00015979 | [MOL File]
13983-17-0.mol | [Molecular Weight]
116.16 |
| Chemical Properties | Back Directory | [Definition]
A natural calcium silicate found in metamorphic
rocks. | [Appearance]
White to brown, red, gray, yellow solid;
vitreous to pearly luster. Mohs hardness 4.5–5. | [Melting point ]
1540°C | [density ]
2,9 g/cm3 | [refractive index ]
1.62-1.64 | [Stability:]
Stable. | [Uses]
Ceramics; paint extender; welding rod coatings;
rubber filler; silica gels; paper coating; filler
in plastics, cements, and wallboard; mineral wool;
soil conditioner. | [IARC]
3 (Vol. Sup 7, 68) 1997 | [EPA Substance Registry System]
Wollastonite (13983-17-0) |
| Hazard Information | Back Directory | [Chemical Properties]
white or cream powder | [General Description]
White or slightly cream-colored powder. pH (aqueous slurry) 8.0 to 10.0. | [Air & Water Reactions]
Insoluble in water. | [Reactivity Profile]
These substances undergo chemical reactions only under relatively severe circumstances or in the presence of an effective catalyst that promotes reaction. They are resistant to ignition, although they may become flammable at very high temperatures. They will be resistant to oxidation/reduction, except in the most severe conditions. These materials may be nontoxic. | [Fire Hazard]
Flash point data for CALCIUM SILICATE are not available; however, CALCIUM SILICATE is probably nonflammable. | [Description]
“Wollastonite” occurs as a calcium inosilicate
mineral that may contain small amounts of Fe, Mg and
Mn substituting for calcium.
The manufactured salt is
usually white. It forms within the earth when impure
limestone is subjected to high temperature and pressure,
sometimes in the presence of silica-bearing fluids as in
metamorphic rocks. It is named after the English
chemist and mineralogist William Wollaston (1766–
1828).
Wollastonite crystallizes as a triclinic crystal with
the space group, 1, and the lattice constants: a = 7.94? ,
b = 7.32 ? , c = 7.07 ? ; α= 90.03°, β = 95.37°, γ = 103.43°
and six formula units per cell. | [Physical properties]
Wollastonite occurs as bladed crystal masses,
single crystals can show an acicular particle shape
and usually it exhibits a white color, but sometimes
cream, gray or very pale green. The melting point of
wollastonite is about 1540°C. | [Production Methods]
Wollastonite is a natural calcium silicate that typically occurs
in deposits with other silicate minerals. When crushed, it
tends to cleave into particles that have length to diameter
ratios of 7 or 8 to 1. Fibrous forms of wollastonite are not
uncommon. | [Hazard]
Questionable carcinogen |
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