| 货号 | 品牌 | 产品名称 | 规格 | 包装、参考价格 | 详情 |
| S913824 | MACKLIN | 疏水二氧化硅 | 99% metals basis | 90元/25g; 280元/100g; 767元/500g; 2300元/2.5kg; | 展开 |
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| 1.00657 | Supelco | Silicic acid | precipitated extra pure light | 1679.82元/1 KG; 7294.43元/10 KG; | 展开 |
产品说明 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 基本信息 | 经验(实验)分子式 | O2Si · xH2O | | 分子量 | 60.08 (anhydrous basis) | | EC索引号 | 231-545-4 |
产品性质 | 质量水平 | 200 | | 测定 | 99-100.5% SiO2 basis (calculated on ignited substance, gravimetric) | | 形式 | solid | | 效能 | >10000 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rabbit) | | mp | 1710 ℃ | | 溶解性 | water: insoluble at 20 ℃ | | 密度 | 2-6 g/cm3 at 20 ℃ | | 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% | | application(s) | sample preparation | | 储存温度 | no temp limit |
安全信息 | 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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| 1.00656 | Supelco | Silicic acid | precipitated extra pure heavy | 3679.56元/1 KG; 96573.4元/20 KG; | 展开 |
产品说明 分析说明 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 基本信息 | 经验(实验)分子式 | O2Si · xH2O | | 分子量 | 60.08 (anhydrous basis) | | EC索引号 | 231-545-4 |
产品性质 | 质量水平 | 200 | | 测定 | ≥99% SiO2 basis (calculated on ignited on substance, gravimetric) | | 形式 | solid | | 效能 | >10000 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rabbit) | | mp | 1710 ℃ | | 溶解性 | water: insoluble at 20 ℃ | | 密度 | 2-6 g/cm3 at 20 ℃ | | 堆积密度 | 60‑600 kg/m3 | | 痕量阴离子 | chloride (Cl-): ≤0.05% | | 痕量阳离子 | Fe: ≤0.03%
heavy metals (as Pb): ≤0.005% | | application(s) | sample preparation | | 储存温度 | 2-30℃ |
安全信息 | 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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