Reference number
ISO 1904:1972
ISO 1904:1972
© ISO 2024
ISO 1904:1972
Liquefied phenol for industrial use — Determination of phenols content — Bromination method
Edition 1
1972-03
1972-03
Retirada
Resumen
The method is not specific for phenol. It determines tho total amount of material that can be brominated under the conditions of the test. It is applicable to mixtures of about 80 % (V/V) phenol and 20 % (V/V) water. The principle is based on reaction between phenol and bromine from a measured amound of standard bromide/bromate solution. Formation of tribromophenol, follwed by iodometric determination for excess bromine using a standard volumetric solution of sodium thiosulphate.