Calcium propionate production method and identification method
Feb 28, 2024
Calcium propionate production method
Produced by the reaction of propionic acid and calcium hydroxide or calcium carbonate. In industry, calcium hydroxide is generally used as raw material. Calcium hydroxide is adjusted into a suspension in a reaction pot, propionic acid is added to react, the end point pH is 7~8, and the finished product is obtained after filtration and drying.
Calcium propionate identification
(1) Take 5 mL of sample solution (1+10) and heat it with 5 mL of dilute sulfuric acid (1+9). A special propionic acid smell will be released.
(2) Dip the sample into a platinum wire moistened with hydrochloric acid, and it will appear red (brick red) in a colorless flame.
