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TALC

CAS No.13376-74-4
Chemical Name:TALC
CBNumber:CB6674696
Molecular Formula:H2Mg3O12Si4
Formula Weight:379.27
MOL File:13376-74-4.mol

TALC Property

Melting point 800 °C
Density 2,7 g/cm³
refractive index 1.54-1.59
storage temp. -70°C
form Talclike material of varying composition, but generally grayish-white, fine, odorless power. It is noncombustible and insoluble in water.
Specific Activity 11.9-16.1nmol/min·mg
Dielectric constant 5.5 - 7.5（0.0℃）
UNSPSC Code 12352202
NACRES NA.32

Safety

Hazard Codes :Xn,T
Risk Statements :20-37-61
Safety Statements :36-45-53
WGK Germany :-
RTECS :WW2710000
TSCA :Yes
IDLA :3,000 mg/m3

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H315-H319-H360D
Precautionary statements P202-P264-P280-P302+P352-P305+P351+P338-P308+P313

TALC Price More Price(1)

Brand: Sigma-Aldrich(India)
Product number: SRP5209
Product name : BMPR2 (174-end), active, His tagged human
Purity: PRECISIO? Kinase, recombinant, expressed in baculovirus infected Sf9 cells, ≥70% (SDS-PAGE), buffered aqueous glycerol solution
Packaging: 10μG
Price: ₹50149.8
Updated: 2022/06/14
Buy: Buy

TALC Chemical Properties,Usage,Production

Chemical Properties White, apple-green, gray powder; pearly or greasy luster, greasy feel. Mohs hardness 1–1.5 (may be harder when impure), high resistance to acids, alkalies, and heat.
Uses Chiefly as a ceramic insulator in electronic devices.
Uses Pigment in paint, varnishes; filler for paper, rubber, soap; lubricating molds and machinery; heat insulator.
Definition A white or pale-green mineralform of magnesium silicate,Mg₃Si₄O₁₀(OH)₂, crystallizing in thetriclinic system. It forms as a secondarymineral by alteration of magnesium-rich olivines, pyroxenes, andamphiboles of ultrabasic rocks. It issoaplike to touch and very soft, havinga hardness of 1 on the Mohs’scale. Massive fine-grained talc isknown as soapstone or steatite. Talcin powdered form is used as a lubricant,as a filler in paper, paints, andrubber, and in cosmetics, ceramics,and French chalk. It occurs chie?y inthe USA, Russia, France, and Japan.
Definition An extremely soft greenish or white mineral, a hydrous silicate of magnesium. Purified it is sold as talcum powder, and it is used as a lubricant, a filler (in paint and rubber) and an ingredient of some ceramics.
Definition A natural hydrous magnesium silicate. Compact, massive varieties may be called steatite in distinction from the foliated varieties, which are called talc. Soapstone is an impure variety of steatite.
Hazard Toxic by inhalation. Effects pulmonary function and causes pulmonary fibrosis. Questionable carcinogen.
Health Hazard The fibrous talc in soapstone dust causes fibrotic pneumoconiosis; an increased incidence of cancer of the lungs and pleura has been reported.
Industrial uses Steatites are noted for their excellent electricalproperties and low cost. They are easily formedand fired at relatively low temperatures. However,compositions containing little or no clayor plastic material present fabricating problemsbecause of a narrow firing range. Steatite partsare vacuum-tight, can be readily bonded toother materials, and can be glazed or ground tohigh-quality surfaces.