Name Sodium Sulfite Chemical formula Na2SO3 Physical appearance White crystalline powder. Quality standard HG/T 2967-2000 Description Sodium Sulphite, Sodium Sulfite Application: 1>Bleaching agent for paper pulps ; 2>Waste water treatment 3>Reducing and sulphonating agent for chemical synthesis 4>Bleaching agent for textiles 5>Colors stripper and deoxidization ; 6>Floating agent for mining industry; 7>Auxiliary chemical in tanning process . Package: 1>25kg/50kg compound plastic woven bag with inner polythene liner ; 2>1000kg Jumbo bags; 3>Any other particular requirements to the package can be discussed. Shelf Life: One year. Storage & handling: 1>Store the product in a cool and dry place avoid contact sunshine; 2>Water and moisture; 3>Avoid contact with strong acid,oxidants or poisonous substances; 4>Exposure to moisture will make it oxidze easily to sodium sulphate; 5>Not store it for a long time. Product Specification: ITEM FOOD GRADE TECH GRADE TECH GRADE Na2SO3 >97% >96% >93% FREE ALKALI