Standard Test Method for Hydroxyl Groups Using Reaction with p-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide

Importancia y uso:

5.1 Hydroxyl is an important functional group and knowledge of its content is required in many intermediate and end use applications. This test method is for the determination of primary and secondary hydroxyl groups and can be used for the assay of compounds containing them.

5.2 This test method has the following advantages over other hydroxyl number methods: It is rapid (10 min), pyridine-free, ambient temperature, small sample size, applicable to extremely low hydroxyl numbers (<1), and is amenable to automation.

Subcomité:

D16.12

Referida por:

E1547-09R23, D6342-22

Volúmen:

06.04

Número ICS:

71.040.40 (Chemical analysis)

Palabras clave:

hydroxyl number; polyacetals; polyols; potentiometric titration; p-Toluenesulfonyl isocyanate; tetrabutylammonium hydroxide;