ISO 753-5:1981

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Acetic acid for industrial use — Methods of test — Part 5: Determination of total acetaldehyde content — Titrimetric method

Published By	Publication Date	Number of Pages
ISO	1981-10	5

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Categories: 71.080.40 - Organic acids, ISO

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Description

The method specified consists in heating a test portion in an acid medium to depolymerize any to paraldehyde present and to entrain, by distillation, both regenerated acetaldehyde and the monomeric acetaldehyde originally present. Reaction of the acetaldehyde in the distillate with an excess of sodium hydrogen sulphite solution. Iodometric titration of the residual sodium hydrogen sulphite solution. The method is applicable to products having total acetaldehyde contents equal to or greater than 0,004 % (m/m). It has also been approved by the International Union of Pure and Applied Chemistry (IUPAC). ISO 753/1 to iso 753/11 cancel and replace ISO Recommendation R 753-1968.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	1981-10
Pages Count	5
Language	English
Edition	1
File Size	235.5 KB
ICS Codes	71.080.40 - Organic acids

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ISO 753-5:1981

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