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一般說明
二氧化硅是一种存在于矿物质、燧石和一些结晶相植物中的天然物质。工业中常用的二氧化硅是合成形式。其表面积、孔体积、孔径和粒径可在一定程度上进行独立控制。结晶二氧化硅可根据大气压分类为：
a.石英：= 1143K
b.鳞石英：1143 - 1743K
c.方石英：= 1743，超过1973K，其会形成无定形玻璃质石英玻璃。
a.石英：= 1143K
b.鳞石英：1143 - 1743K
c.方石英：= 1743，超过1973K，其会形成无定形玻璃质石英玻璃。
應用
二氧化硅可用于合成硅质岩。二氧化硅可用于辅助氧化物和氮化物纳米线的催化生长。
特點和優勢
具有令人感兴趣的增稠性、触变性以及巨大的外表面积。
其他說明
粒径是针对初级粒子，它们形成支链状聚集体，仅长零点几微米。
其可能含有吸附的H2O和CO2，这些组分可通过在> 900℃下煅烧除去
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類（WGK）
WGK 2
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
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