TALC
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TALC ??
- ???
- 800 °C
- ??
- 2,7 g/cm3
- ???
- 1.54-1.59
- ?? ??
- -70°C
- ??? ??
- 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℃）
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- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? | Xn,T | ||
|---|---|---|---|
| ?? ???? ?? | 20-37-61 | ||
| ????? | 36-45-53 | ||
| WGK ?? | - | ||
| RTECS ?? | WW2710000 | ||
| TSCA | Yes | ||
| IDLA | 3,000 mg/m3 |
| ????(GHS): |
 
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| ?? ?: | Danger | |||||||||||||||||||||
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TALC C??? ??, ??, ??
??? ??
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.??
Chiefly as a ceramic insulator in electronic devices.??
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.???
Toxic by inhalation. Effects pulmonary function and causes pulmonary fibrosis. Questionable carcinogen.????
The fibrous talc in soapstone dust causes fibrotic pneumoconiosis; an increased incidence of cancer of the lungs and pleura has been reported.?? ??
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.TALC ?? ?? ? ???
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TALC ?? ??
???( 73)?? ??
| ??? | ?? | ??? | ?? | ?? ? | ?? |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21634 | 55 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
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| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
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| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 |
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| Dorne Chemical Technology co. LTD | +86-86-13583358881 +8618560316533 |
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| SUZHOU SENFEIDA CHEMICAL CO.,LTD | +86-0512-83500002 +8615195660023 |
sales@senfeida.com | China | 23046 | 58 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 021-61259108 18621169109 |
market03@meryer.com | China | 40228 | 62 |
| VWR(Shanghai) Co., Ltd | 400-821-8006 |
info_china@vwr.com | China | 3040 | 75 |
| Tianjin Baima Technology Co., LTD | 02288195255 15620955089 |
362698781@qq.com | China | 784 | 58 |
| Hubei Xingyinhe Chemical Co., Ltd. | 13437271305 |
1961141534@qq.com | China | 643 | 58 |
TALC ?? ??:
???? ???? ???? ???? ???? ???? ?????? ??? ?? ???? ???, ??? ??
Hydrotalcite
TALC
tetrahydroxysilane
Talc Bp pruified Bp
taclum powder Food grade
TREMOLITIC TALC
SODA TALC
1-Propanamine, 3-(triethoxysilyl)-, reaction products with talc (Mg3H2(SiO3)4)
Purified talc
TALC POWDERED, PURE PH. EUR.,USP
Antimony oxide (Sb2O3), reaction products with talc