This standard was last reviewed and confirmed in 2015. Therefore this version remains current.
Abstract Preview
The method can be applied provided the Fe203 content does not exceed 0,15 . It can also be applied to products with molar ratio of NaF to AlF3 between approximately 3 and 1,7. The principle consists in dissolution of a test portion by acid fusion using potassium pyrosulphate and recovery by hydrochloric acid. Separation of the mixture by precipitation of aluminium, with ammonium benzoate , in an acetic reducing medium. Dissolution of the precipitate and reprecipitation as aluminium tri(quinolin-8-oxide) in an acetic buffer medium. Filtration, washing, drying of the precipitate at a temperature of 130 °C and weighing.
General information
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Status : PublishedPublication date : 1972-12
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Edition : 1Number of pages : 3
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- ICS :
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Salts
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| Format | Language | |
|---|---|---|
| Paper |
- CHF38
Life cycle
A standard is reviewed every 5 years
Revisions / Corrigenda
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Now confirmed
ISO 2367:1972
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