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英文名：Sodium silicate
分子式：Ni2SiO3.9H2O
性狀：白色或灰色塊狀或粉末，溶于水和堿溶液，由于水解其水溶液顯強堿性；不溶于醇和酸。
質量標準：HG 12-104-82
包裝：500g/瓶 20瓶/箱
| 規格 | 分析純 AR |
| 含量不小于 | 19.3-22.8% |
| 澄清度試驗 | 合格 |
| 氯化物 %≤ | 0.01 |
| 硫酸鹽 %≤ | 0.01 |
| 碳酸鹽 %≤ | 合格 |
| 鋁 %≤ | 0.05 |
| 鐵 %≤ | 0.05 |
| 重金屬 %≤ | 0.001 |
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