Caustic Soda Flake has been manufactured by Nasrin Chemical at factory would be without any dirt or additional visible impurities and would be a white solid material in flake mode. it is also known as Sodium hydroxide in flake mode and This product is in high purity for industrial uses and food uses also. sodium hydroxide in flake mode is a highly hygroscopic substance, that easily absorbs water and carbon dioxide from the air. The minimum purity of our product is %98