1.00656

Silicic acid

precipitated extra pure heavy

• 同義詞: Silicic acid
• 經驗公式（希爾表示法）: O₂Si · xH₂O
• CAS號碼: 10279-57-9
• 分子量：: 60.08 (anhydrous basis)
• MDL號碼: MFCD00011232
• 分類程式碼代碼: 12352308
• 酶委員會索引編號: 231-545-4
• NACRES: NB.21

屬性

• 品質等級: 200
• 化驗: ≥99% SiO₂ basis (calculated on ignited on substance, gravimetric)
• 形狀: solid
• 效力: >10000 mg/kg LD₅₀, oral (Rat); >5000 mg/kg LD₅₀, skin (Rabbit)
• 雜質: ≤1% With hydrofluoric acid non volatile matter (as sulfate, ignited basis)
• 損耗: 10-20% loss on ignition, 1000 °C
• mp: 1710 °C
• 溶解度: water: insoluble at 20 °C
• 密度: 2-6 g/cm³ at 20 °C
• 體積密度: 60‑600 kg/m³
• 負離子痕跡: chloride (Cl^-): ≤0.05%
• 正離子痕跡: Fe: ≤0.03%; heavy metals (as Pb): ≤0.005%
• 應用: sample preparation
• 儲存溫度: 2-30°C
• SMILES 字串: [Si](=O)=O
• InChI: 1S/O2Si/c1-3-2
• InChI 密鑰: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

描述

分析報告

Identity: passes test
Assay (gravimetric, SiO₂, calc. on ignited substance): ≥ 99 %
Chloride (Cl): ≤ 0.05 %
Heavy metals (as Pb): ≤ 0.005 %
Fe (Iron): ≤ 0.03 %
With hydrofluoric acid non volatile matter (as sulfate, ignited basis): ≤ 1 %
Loss on ignition (1000 °C): 10 - 20 %
Particle size (< 0.1 mm): about 99 %
Bulk density: 20 - 60 g/100 ml

安全資訊

• 儲存類別代碼: 13 - Non Combustible Solids
• 水污染物質分類（WGK）: nwg
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable