| 发明名称 |
PROCEDIMIENTO PARA LA DETERMINACION DE AGUA CON AYUDA DEL REACTANTE DE KARL-FISCHER LIBRE DE PIRIDINA |
| 摘要 |
<p>A pyridine-free Karl-Fischer reagent for the determination of water which comprises (a) a solvent solution containing sulfur dioxide and an amine in a Karl-Fischer reagent solvent, the amine being functionally equivalent to pyridine in a Karl-Fischer reagent, and (b) a titrating agent containing iodine in a Karl-Fischer solvent; the molar ratio of amine to sulfur dioxide being about 2:1 to about 1:1 and the reagent being essentially free of pyridine.</p> |
| 申请公布号 |
ES500441(D0) |
申请公布日期 |
1986.05.16 |
| 申请号 |
ES19410005004 |
申请日期 |
1981.03.17 |
| 申请人 |
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
发明人 |
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| 分类号 |
G01N31/00;G01N27/26;G01N31/16;(IPC1-7):G01N31/16 |
主分类号 |
G01N31/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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