| Color | White |
Name： | Sodium Metabisulte(SMBS) |
Chemical formula： | Na2S2O5 |
sical appearance： | White powder or small crystalicles. |
Quality standard： | GB1893-1998 |
Description： | Sodium Metabisulte, Sodium Metabisulfite, SMBS,E222Application:1>Bleaching agent for textile fibres; 2>Colors stripper and dechlorination;   3>Preparation of Indigo Vat Dye; 4>Solubilizing and acidyfing agent for leather industries ; 5>Bleaching agent forpaper pulps;  6>Preservative and sterilisation agent for food industries.   Package: 1>25kg /50kg compound plastic woven bag with inner polythene irc;   2>1000kg Jumbo bags;   3>Any other particular requirements to the package can be discussed.   Shelf Life:Half one year.  Storage & Handling:1>Store the product in a cool and dry place; 2>Prevent from direct sunlight,water and moisture; 3>Avoid with strong acid,oxidants or poisonous substances; 4>Exposure to moisture will make it oxidze easily to sodium sulte; 5>Do not store it for long time.   Product Specification:                                        TECH GRADE    FOOD GRADE  NA2S2O5                            >96.5%             >97.0% SO2                                     >65%                >65% FE                                       <0.005%           <0.003% WATER INSOLUBLE       <0.05%             <0.05% HEAVY METAL(PB)        <0.001%            <0.001% AS                                      <0.0003%          <0.0001% |
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