Sodium Pyrosulfite

Sodium metabisulfite (Na2S2O5) is an inorganic compound, which is white or yellow crystal with a strong pungent smell. It is soluble in water and the aqueous solution is acidic. When it comes in contact with strong acid, it releases sulfur dioxide and generates corresponding salts. If left in the air for a long time, it will be oxidized into sodium sulfate, so sodium metabisulfite cannot be stored for a long time.

Printing and dyeing mordant; antichlor in after fabric bleaching; chemical and medicine reducer and sulfonating agent; bleaching agent of bamboo, wood and paper fiber; nonferrous metal dressing agent; waste water finishing agent; rubber coagulator; alkyl spice aldehyde in spice industry; depilating agent, softening agent and anti-wear agent in leather industry; reducer of developer and protective agent of fixative in sensitization industry.

Preservative, bleaching agent and antioxidant in food industry.
Water treatment as reductant.
Bleaching agent for textile fibers, paper pulps.
Printing and dyeing industry as a dechlorinating agent and cotton scouring agent.
Ore dressing agent in mining industry.
Fixative ingredients in photographic industry.
Production of oral, topical and parenteral pharmaceutical products
Solubilizing and acidifying agent for leather industry.
Rubber industry as coagulator.
Anticorrosion and bleaching treatment in wooden products.
Producing concrete water reducing agents in construction industry.

我們擁有許多深度合作的優質工廠，可以為您提供高品質的產品和有競爭力的價格。並且我們還可以對大量採購給予折扣。確認付款後，交貨時間約 3-20 天。

Sodium metabisulfite appears as a white crystalline or powder solid with a slight sulfur odor. Toxic by inhalation. Strongly irritates skin and tissue. Noncombustible, but may decompose to emit toxic oxide fumes of sulfur 和 sodium when heated to high temperature. A corrosive acid when mixed with water. Used as a food preservative and as a laboratory reagent.

1.It is used as bleaching agent, mordant, reducing agent, rubber coagulant, and also used in organic synthesis, pharmacy, spices, etc
2.It is used as chromatographic analysis reagent, antiseptic and reducing agent, dye and pharmaceutical industry
3.Sodium pyrosulfite has stronger reducibility than sulfite, and its effect is similar to that of sodium sulfite. Our country stipulates that it can be used for candied fruits, biscuits, sugar, crystal sugar, malt sugar, candy, glucose, liquid glucose, bamboo shoots, mushrooms and canned mushrooms, with the maximum use amount of 0.45g/kg. The residue (calculated by SO2) of candied fruits, bamboo shoots, mushrooms and canned mushrooms, grapes and blackcurrant concentrated juice is less than 0.05/kg; The residue of biscuits, sugar, vermicelli and other varieties is less than 0.1g/kg; The residual amount of liquid glucose shall not exceed 0.2g/kg.
4.Food industry is used as bleach, antiseptic, loose agent, antioxidant, color fixative and fresh-keeping agent.

1.你們是工廠還是貿易公司？
我們是一家工貿一體化的公司，提供一站式服務。

2.你們提供樣品嗎？是免費的還是額外的？
免費樣品。

3.你們有與品質控制相關的證書嗎？
ISO 9001:2008 認證確保品質。

4.我應該提供什麼才能獲得報價？
請告知我們您需要的產品類型、訂購數量、地址及具體要求，我們將及時報價供您參考。

5.您喜歡哪種付款方式？接受什麼樣的條款？
接受的交貨條件：FOB、CFR、CIF、EXW；
接受的付款貨幣：美元；
接受的付款方式：T/T、西聯匯款；貝寶，貿易保證。
使用語言：英語。