84880
二氧化硅
purum p.a., acid purified
别名:
方石英, 石英, 砂石, 硅石
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关于此项目
线性分子式:
SiO2
化学文摘社编号:
分子量:
60.08
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352303
MDL number:
产品名称
二氧化硅, purum p.a., acid purified
InChI
1S/O2Si/c1-3-2
SMILES string
O=[Si]=O
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
grade
purum p.a.
form
powder or crystals
quality
acid purified
loss
≤0.1% loss on ignition
refractive index
n20/D 1.544 (lit.)
particle size
40-200 mesh
mp
1610 °C (lit.)
density
2.6 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤200 mg/kg
cation traces
Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤100 mg/kg
K: ≤100 mg/kg
Na: ≤200 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg
Quality Level
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Application
Silicon dioxide may be employed in the preparation of calcium silicide.
General description
Silicon dioxide is one of the important constituents of sedimentary rock bauxite, basalt fibers and ceramic fibers. It is added to cement for improving the hydraulic properties of cement.
may contain dark particles
存储类别
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
监管及禁止进口产品
此项目有
Eagleson M.
Concise Encyclopedia Chemistry, 196-196 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 165-165 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 117-117 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 129-129 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 50-50 (1994)
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