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About This Item
经验公式（希尔记法）:
O2Si · xH2O
CAS号:
分子量:
60.08 (anhydrous basis)
MDL编号:
UNSPSC代码:
12352308
EC索引号:
231-545-4
NACRES:
NB.21
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质量水平
方案
99-100.5% SiO2 basis (calculated on ignited substance, gravimetric)
表单
solid
效能
>10000 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rabbit)
缺失
≤8.5% loss on ignition, 2 h, 900 °C
pH值（酸碱度）
3.0-8.0 (3.3% in water)
mp
1710 °C
溶解性
water: insoluble at 20 °C
密度
2-6 g/cm3 at 20 °C
堆积密度
60‑600 kg/m3
痕量阴离子
chloride (Cl-): ≤0.05%
sulfate (SO42-): ≤0.5%
痕量阳离子
Fe: ≤0.03%
heavy metals (as Pb): ≤0.0025%
应用
sample preparation
储存温度
no temp limit
SMILES字符串
[Si](=O)=O
InChI
1S/O2Si/c1-3-2
InChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
相关类别
分析说明
Assay (gravimetric, SiO₂, calc. on ignited substance): 99.0 - 100.5 %
Identity: passes test
pH-value (3.3 %, water): 3.0 - 8.0
Chloride (Cl): ≤ 0.05 %
Sulfate (SO₄): ≤ 0.5 %
Heavy metals (as Pb): ≤ 0.0025 %
Fe (Iron): ≤ 0.03 %
Loss on ignition (2 h, 900 °C): ≤ 8.5 %
Particle size (< 0.1 mm): about 99
Bulk density: about 6
Identity: passes test
pH-value (3.3 %, water): 3.0 - 8.0
Chloride (Cl): ≤ 0.05 %
Sulfate (SO₄): ≤ 0.5 %
Heavy metals (as Pb): ≤ 0.0025 %
Fe (Iron): ≤ 0.03 %
Loss on ignition (2 h, 900 °C): ≤ 8.5 %
Particle size (< 0.1 mm): about 99
Bulk density: about 6
储存分类代码
13 - Non Combustible Solids
WGK
nwg
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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