发明授权
- 专利标题: Karl Fischer reagent and method for determining water by means of this reagent
- 专利标题(中): 卡尔费休试剂和通过该试剂测定水的方法
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申请号: US716439申请日: 1985-03-27
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公开(公告)号: US4647542A公开(公告)日: 1987-03-03
- 发明人: Wolfgang Fischer , Karl-Dieter Krenn
- 申请人: Wolfgang Fischer , Karl-Dieter Krenn
- 申请人地址: DEX Darmstadt
- 专利权人: Merck Patent Gesellschaft mit beschrankter Haftung
- 当前专利权人: Merck Patent Gesellschaft mit beschrankter Haftung
- 当前专利权人地址: DEX Darmstadt
- 优先权: DEX3411181 19840327
- 主分类号: G01N31/00
- IPC分类号: G01N31/00 ; G01N31/16 ; G01N33/18
摘要:
A new Karl Fischer reagent contains as a pyridine substitute at least one compound of the general formula ##STR1## in which R.sup.1 and R.sup.2, which can be identical or different, =hydrogen or alkyl having 1-6 C atoms,R.sup.3 =alkyl having 1-6 C atoms,X=alkali metal ion or one equivalent of an alkaline earth metal ion,n=0 or a number from 1 to 4 andm=a number from 1 to 4.
公开/授权文献
- US5954791A Multipliers with a shorter run time 公开/授权日:1999-09-21
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