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|Product Name||Sodium metabisulfite|
|Sodium Metabisulphite (Na2S2O5) %||97.18|
|SO2 % ≥||65|
|Fe % ≤||0.002|
|Insoluble matter in nitric acid% ≤||0.009|
|Phosphoric acid test ≤ （mg/kg)||4.2|
|Appearance||White to slightly yellowish
It is used for the production of insurance powder, sulfamethazine, analgin, caprolactam, etc., as well as the purification of chloroform, phenylpropane sulfone and benzaldehyde. The photographic industry is used as a fixative for the fixer. The perfume industry is used to produce vanillin. Used as a preservative for brewing industry, a rubber coagulant and a bleaching agent for cotton bleaching. Organic intermediates, dyes, and tanning are used as reducing agents for electroplating, wastewater treatment in oil fields, and as a mineralizer for mines.
It is used in printing and dyeing, organic synthesis, printing, tanning, pharmaceutical and other departments; as a preservative, bleaching agent and loosening agent in food processing.
Used as a chemical reagent
(Printing and dyeing, photography, etc.), used as bleach mordant, reducing agent rubber coagulant, also used in organic synthetic pharmaceuticals and spices.
● Packing, Delivery, Shipping and Serving of the Caustic Soda/NaOH.
■ Packing: Caustic soda is packed in plastic woven bags (25Kg/ bag with inner lining). After packaging, it is repacked in full-ton film packing and secondary bagging (plastic woven bag) according to customers' requirements.
■ Delivery: 7-20 days after confirming order, detail delivery date should be decided according to production season and order quantity.
■ Serving: Competitive price; Reply within 24 hours; Stable shipping support; Full after-sale service.
|a) 20 years experience, which give us deeper understanding of the market.||b) Quality control, the strict quality control system offer the best quality product.||c) Fantastic staff, benefits from our good performance team and supply chain management.||d) First-class service, no matter before or after sales, we always promise to do our best to provide the best service to customers.|