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.
بىزنىڭ چوڭقۇر ھەمكارلىق بىلەن نۇرغۇن ئەلا سۈپەتلىك زاۋۇتلىرىمىز بار ، ئۇ سىزنى ئەلا سۈپەتلىك مەھسۇلات ۋە رىقابەت باھاسى بىلەن تەمىنلەيدۇ. بىز يەنە تۈركۈملەپ سېتىۋېلىشقا ئېتىبار بېرەلەيمىز .ھەم بىز نۇرغۇن كەسپىي يۈك توشۇش شىركەتلىرى بىلەن ھەمكارلىشىمىز ، مەھسۇلاتلارنى بىخەتەر ۋە ئوڭۇشلۇق ھالدا قولىڭىزغا يەتكۈزەلەيمىز. مال تاپشۇرۇش ۋاقتى پۇل تاپشۇرۇلغاندىن كېيىنكى 3-20 كۈندىن كېيىن.
| Item | Food Grade | Industry Grade |
| Purity ( As Na2S2O5) | 98.0% min | 96.0% min |
| Sulfur Dioxide( SO2) | 65.0% min | 65.0% min |
| Arsenic ( As ) | 0.0002% max | - |
| Heavy metals ( As Pb ) | 0.0005% max | - |
| Selenium (Se ) | 0.0005% max | - |
| Iron (Fe) | 0.001% max | 0.002% max |
| Water insoluble | 0.02% max | 0.05% max |
| PH value : | 4.0-4.8 | 4.0-4.8 |
| Remark : | Conformed with FCCV and E223 Standard | |
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 ۋە 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. سىز زاۋۇتمۇ ياكى سودا شىركىتىمۇ؟
بىز سانائەت ۋە سودىنى بىرلەشتۈرگەن ، بىر بېكەتلىك مۇلازىمەت بىلەن تەمىنلەيدىغان بىرىكمە دېتال. OEM قوبۇل قىلىنسا بولىدۇ.
2. ئەۋرىشكە بىلەن تەمىنلەمسىز؟ ھەقسىزمۇ ياكى قوشۇمچەمۇ؟
ھەقسىز ئەۋرىشكە. ئەۋرىشكىنىڭ يۈك ھەققىنى سىز تۆلىشىڭىز كېرەك.
3. سۈپەت كونترول قىلىشقا مۇناسىۋەتلىك گۇۋاھنامە بارمۇ؟
سۈپەتكە كاپالەتلىك قىلىش ئۈچۈن ISO 9001: 2008 گۇۋاھنامىسى.
4. نەقىل ئېلىش ئۈچۈن نېمىلەرنى تەمىنلىشىم كېرەك؟
بىزگە لازىملىق مەھسۇلات تۈرى ، زاكاز مىقدارى ، ئادرېسى ۋە كونكرېت تەلەپلىرى ھەققىدە بىزگە ئۇچۇر بېرىدۇ. بۇ نەقىللەر پايدىلىنىشىڭىز ئۈچۈن ۋاقتىدا چىقىرىلىدۇ.
5. قايسى خىل پۇل تۆلەش ئۇسۇلىنى ياخشى كۆرىسىز؟ قانداق ئاتالغۇلار قوبۇل قىلىنىدۇ؟
قوبۇل قىلىنغان يەتكۈزۈش شەرتلىرى: FOB, CFR, CIF, EXW;
قوبۇل قىلىنغان پۇل تۆلەش پۇلى: USD;
قوبۇل قىلىنغان ھەق تۆلەش تىپى: T / T ، Western Union; چىقىمدان ، سودا كاپالىتى.
تىلدا سۆزلەنگەن: ئىنگلىزچە.
مەھسۇلات تۈرلىرى
