• Natural Steatite / Soapstone Powder Synonyms:

soapstone, massive talc, french chalk, soapstone silicate, steatite, soapstone talc, natural steatite talc, CAS# 14807-96-6 

• Natural Steatite / Soapstone Powder Designations:

Nominal Chemical Formula: 3MgO*4SiO₂*4H₂O

• Natural Steatite / Soapstone Powder General Description:

a) Composed essentially of the mineral massive talc with less than 1.5% each of CaO and Fe2O3 and less than 4% Al2O3. It is naturally occurring and also called soapstone, steatite, and French chalk.

b) Steatite is designated to indicate a purer variety of compact and massive talc while the use of word soapstone is restricted to a slightly impure variety of steatite containing 50 to 80% talc.

c) It comes in brilliant white and off color and is odorless. The value of steatite lies in its extreme softness, smoothness, slippery & lubricating properties, high luster & sheen, chemical inertness, high fusion point, low heat, electrical conductivity and as a pigment extender.

• Natural Steatite / Soapstone Powder Typical Chemical Purities Available:

99.5%

• Natural Steatite / Soapstone Powder Typical Granulations Available:

a) Targets, tablets, single crystal pieces
b) Powder sized as small as 325 mesh by down

• Natural Steatite / Soapstone Powder Nominal Physical Constants:

Bulk Density	0.6 - 0.75
Specific Gravity	2.7- 2.8
Specific Heat @ R.T. (cal/g-°C)	0.22
Compressive Strength (MPa @ R.T.)	621
Mohs Hardness	7.5
Crystal Structure	hexagonal
Thermal Conductivity R.T. (W/m-K)	2.9
MW	379.3
pH	8
Loss On Ignition	0.5 to 3.5
Color	brownish-gray/ off-white

 

• Natural Steatite / Soapstone Powder Typical Applications:

Meets certain specs. for ceramic insulator bodies. In lump form it is often referred to as block steatite. Steatite slabs are employed as linings for various kinds of stoves, ovens and fireboxes. Bricks made from crushed steatite, bonded with silicate for soda are used for the manufacture of furnaces in which crude lead bullion is softened before being de-silvered. It is used as a pigment in paints, rubber, soaps, and varnishes. steatite is mainly consumed in paper insecticide, cosmetic, fertilizer and ceramic industry.

• Natural Steatite / Soapstone Powder Packaging Options:

Bags, drums and bulk bags.

• Natural Steatite / Soapstone Powder TSCA (SARA Title III) Status:

Listed. For further information please call the U.S. Environmental Protection Agency at +1.202.554.1404

•  Natural Steatite / Soapstone Powder Chemical Abstract Service (CAS) Number:

CAS# 14807-96-6