Caustic soda liquid types:

SODIUM HYDROXIDE SOLUTION is a colorless liquid and it`s density is more than water. Contact maybe severely irritate skin, eyes and mucous membranes. Toxic by ingestion, Could be causes corrosive to metals and tissue. Also best place to keep is dry stock with temperature between 15 – 55 c. Warm weather (+55 c) maybe damage the package. In -15 c liquid will be freeze. NaOH  mades by changes the electrolytic chlor alkali process. In this process also Chlorine gas gets, as a result.

There are two type of liquid sodium hydroxide or liquid caustic soda lye 35% and lye 50%.