TALC
- Product Name
- TALC
- CAS No.
- 13376-74-4
- Chemical Name
- TALC
- Synonyms
- TALC;Talk;BMR2;PPH1;BMPR3;BRK-3;TALCUM;STEATITE;FLJ41585;FLJ76945
- 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.
- Dielectric constant
- 5.5 - 7.5（0.0℃）
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P202Do not handle until all safety precautions have been read and understood.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313IF exposed or concerned: Get medical advice/attention.
N-Bromosuccinimide Price
- 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
- $522
- Updated
- 2024/03/01
- Product number
- ING0004458
- Product name
- MAGNESIUM SILICATE MONOHYDRATE
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $504.64
- Updated
- 2021/12/16
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
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 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
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.
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