Coulometric determination of water in lubricating greases

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作者
Kil'yanov, M.Yu. [1 ]
Petrov, S.I. [1 ]
Chaduneli, Z.K. [1 ]
机构
[1] I.M. Gubkin Inst of Oil & Gas, Russia
关键词
Chemical Analysis - Titration - Coulometers - Performance - Lubricants - Analysis - Water - Analysis;
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摘要
The feasibility of using a coulometric titration version of the Fischer method to determine water content in several greases was studied. A modified Fischer reagent was used in which methanol was replaced by ethylcellosolve to eliminate the side reactions generated by methanol, reduce reagent toxicity, and broaden the field of reagent application. A coulometric cell was designed to diminish solution mixing between the anode and cathode sides. The relative standard deviation of the method was 0.005-0.018%.
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页码:500 / 501
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