Abstract
The method consists in precipitating of potassium ions by an excess of sodium tetraphenylborate (NaTPB) in a weakly alkaline medium, filtrating and determing of the unused NaTPB by back titration with cetyltrimethylammoniumbromide solution. The test solution shall be prepared as specified in ISO 5317 or ISO 7407.
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Status: WithdrawnPublication date: 1986-12
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Edition: 1Number of pages: 4
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- ICS :
- 65.080 Fertilizers
Life cycle
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