(2) It is obtained by adding hydrochloric acid to the methanol solution of choline, neutralizing and then refining;
(3) Anhydrous chloroethanol reacts with trimethylamine. The reaction was carried out at 50°C.
Storage modeedit
The storage temperature of choline chloride aqueous solution should not be lower than -12℃ to avoid clogging the pipeline after crystallization.
Choline chloride powder should be stored in a silo with dehumidification equipment to prevent the product from absorbing moisture. Choline chloride powder will cause the product to become wet and agglomerate after absorbing moisture, causing the catheter to block. Plant carrier type choline chloride powder may have fermentation after long-term moisture absorption.