Résumé
The method is applicable to solid paraformaldehyde of aldehyde contents in the range 67 % (m/m) to 97 % (m/m). The principle consists in the reaction of aldehyde present in a test portion with neutralized sodium sulphite solution. Titration of the liberated sodium hydroxide with sulphuric acid solution using thymolphthalein as indicator. - This document has also been approved by the IUPAC.
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État actuel: AnnuléeDate de publication: 1981-05
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Edition: 1Nombre de pages: 2
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- ICS :
- 71.080.80 Aldéhydes et cétones
Cycle de vie
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