BS 6829-5-5.3:1989
$142.49
Analysis of surface active agents (raw materials). Ethoxylated alcohol and alkylphenol sulphates – Method for determination of unsulphated matter content
Published By | Publication Date | Number of Pages |
BSI | 1989 | 4 |
Separation from a methanolic solution using an ion-exchange column, followed by evaporation and weighing of the residue. Applicable to commercial products containing an average of not more than 20 oxyethylene groups per molecule.