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69012-64-2

中文名稱 硅粉
英文名稱 Fumes, silica
CAS 69012-64-2
更新日期 2024/11/05 10:14:05
69012-64-2 結(jié)構(gòu)式 69012-64-2 結(jié)構(gòu)式

基本信息

中文別名
硅灰
硅粉
微硅粉
英文別名
SILICAFUMES
Fumes, silica
Einecs 273-761-1
silica welding fumes
AMORPHOUS-FUMESILICA
AMORPHOUS SILICA FUME
Silica Fume (powder form)
Silica, amorphous - Fume total dust
Silica, amorphous - Fume, respirable
所屬類別
無機(jī)化工:非金屬礦

物理化學(xué)性質(zhì)

密度0.45-0.67[at 20℃]
形態(tài)Fine white powder with particle sizes generally below 1mm. This is not the same as the commercial products “fumes silica,” “silica gel,” “precipitated silica,” or “fused silica.” It is formed during the electric arc production of elemental silicon from quartz, which is reduced to silicon monoxide, escaping from the furnace and oxidized by air to silicon dioxide. This condenses to form spherical particles. For the production of ferrosilicon, iron metal is added to the charge; during charging there is also exposure to crystalline silica.
水溶解性135mg/L at 37℃
EPA化學(xué)物質(zhì)信息Fumes, silica (69012-64-2)

安全數(shù)據(jù)

危險性符號(GHS)GHS hazard pictograms
GHS08
警示詞警告
危險性描述H373
防范說明P260-P314-P501

常見問題列表

簡介

微硅粉,又叫硅微粉,也叫硅灰、硅粉或二氧化硅超細(xì)粉。微硅粉是冶金電爐在2000℃以上高溫時產(chǎn)生的SiO2和Si氣體與空氣中的氧氣迅速氧化并冷凝而形成的一種超細(xì)硅質(zhì)粉體材料。

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硅粉價格(試劑級)
報價日期產(chǎn)品編號產(chǎn)品名稱CAS號包裝價格
2024/04/30XW6901264201微硅粉69012-64-2100G185元
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