General InformationChemical IdentificationSpecificationApplicationPackingHandling and Safety InstructionGeneral Information Caustic soda flakes is a hard but brittle white solid. On exposure to air it easily absorbs water and becomes moist. It should be handled with care by wearing protective eye glass and rubber hand gloves in order to prevent from being attacked. Shelf Life: Long life if protected from air and moisture. Chemical Identification Chemical Formula NaOH Molecular Weight 40.00 CAS No. 1310-73-2 Specification Average Chemical Analysis Parameters Average Chemical Analysis Physical appearance White deliquescent flakes. Concentration (NaOH) 98.0 ± 1 % Sodium Carbonate (Na2CO3) 1.0 % max. Sodium chloride (NaCl) 0.04 % max. Iron (Fe) 20 ppm Application It is the main raw materials for the production of soap. In oil refining industry it is used to remove the acids in the oil and improve the smell and color of the oil & petroleum products. In textile industry, caustic soda is used to make rayon and mercerization of cotton. In paper making industry, it is used as a reagent to treat wood, rice stalks and other fibers. Industrial water treatment: Regeneration of ion exchangers, waste water treatment. Food industry: Purification of fats and oils and removal of fatty impurities. Caustic soda is used for the extraction and purification of aluminum. Packing It is supplied in the packing of 25 kg Polypropylene bags having polyethylene liner. Handling and Safety Instruction Store in a dry place away from acids, metals like aluminum, magnesium and zinc that cause formation of flammable hydrogen. Immediately remove all contaminated clothing and equipment effected by the Caustic. Flush the exposed area thoroughly with a lot of water, followed by washing with a solution of 5 % ammonium chloride in water. If caustic contacts the eyes, they should be irrigated immediately with plenty of water for at least 15 minutes. Hold the eyelids opened during irrigation. The eyes should then be washed with a dilute boric acid solution and wash the eye with water for an additional 15 minutes. A physician should be seen immediately after the eye is thoroughly washed. For personal protection, use face shields, gloves, gum-boots and protective suites.