| 两种气相法白炭黑水分测定方法的比较 |
| Comparison between two determinations for water content in fumed silica |
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| DOI： |
| 中文关键词: 卡尔·菲休库仑法 重量法 气相法白炭黑 水分 |
| 英文关键词: Coulometric Karl Fischer titrimetry gravimetric method fumed silica content of water |
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| 中文摘要: |
| 使用卡尔·菲休库仑法和重量法分别测定了两种气相法白炭黑微粉中的水分质量分数, 为白炭黑水分测定提供了技术途径, 并对两种测定方法进行了比较。研究结果表明:卡尔·菲休库仑法与重量法皆可用于固体物质的水分测定, 且库仑法精度较高, 更适用于微量水的测定, 而重量法适用于较高水分质量分数的测定。 |
| 英文摘要: |
| The water content in fumed silica was determined by Coulometric Karl Fischer titrimetry and gravimetric method respectively and these two determinations were compared.The results showed that both could do for determinating the water content in fumed silica , but the former was
more suitable for determinating the micro content of water in fumed silica because of its higher accuracy. |
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