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| Place of Origin: | Hunan |
| Brand Name: | OEM |
| Certification: | SGS,ISO 9001 |
| Model Number: | sodium pyrosulfite-3 |
| Minimum Order Quantity: | 1 metric ton |
|---|---|
| Price: | usd 300 per metric ton |
| Packaging Details: | 25 kgs bag,1000 kgs big bag |
| Delivery Time: | 5-8 days |
| Payment Terms: | T/T , L/C |
| Supply Ability: | 3000 tons per month |
| Name: | Smbs Sodium Pyrosulfite Leather Chemical | Other Name: | Sodium Metabisulfite Leather Chemical |
|---|---|---|---|
| Situation: | Dry Powder | Grade: | Tech |
| Usage: | Leather Chemical,industrial | Mocular: | Na2S2O5 96.5% |
| High Light: | sodium metabisulfite powder,sodium meta bi sulphate |
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SODIUM PYROSULFITE/SODIUM METABISULFITE
| Item | Chinese standard HG/T2826-2008 |
Company standard | |
| Top-grade | First grade | ||
| Main content(Na2S2O5) | ≥96.5 | ≥95.0 | ≥97.0 |
| Fe %( Fe) | ≤0.005 | ≤0.010 | ≤0.002 |
| Water-Insoluble | ≤0.05 | ≤0.05 | ≤0.02 |
| Arsenic(As) content | ≤0.0001 | - | ≤0.0001 |
Specification for Pharmaceutical Grade and Photo Grade
| Item | Quality Index | |
| Pharmaceutical Grade | Photo Grade | |
| Purity ( As Na2S2O5) | 98.0% min | 98.0% min |
| Sulfur Dioxide( SO2) | 65.0% min | 65.0% min |
| Thiosulphate ( As S2O3) : | 0.05 % max | 0.05% max |
| Chloride ( As CL-) : | 30 ppm max | 50ppm max |
| Arsenic ( As ) : | 1ppm max | 1ppm max |
| Lead ( Pb ) : | 1 ppm max | 2ppm max |
| Copper (Cu) : | 1 ppm max | 1ppm max |
| Iron (Fe ) : | 5 ppm max | 5ppm max |
| Mercury (Hg) : | 0.1ppm max | 1ppm max |
| Chromium (Cr) : | 1 ppm max | - |
| Selenium (Se ) : | 1 ppm max | 5ppm max |
| Zinc (Zn) | 1 ppm max | 1ppm max |
| Cadmium (Cd ) | 1ppm max | - |
| Nickel (Ni) | 1ppm max | - |
| Na2SO3 + Na2SO4 | 1.5% max | - |
| PH value : | 4.0-4.8 | 4.0-4.8 |
| Remark : | Conformed with USP standard | |
Appearance: white free flowing fine crystal or powder.
Property: white or light yellow crystal powder, a strong smell of sulfur dioxide, relative density is 1.4, easy to dissolve in water and glycerin, water solution. It has acidity, and its solubility will become large while raising the temperature and is less to dissolve in ethanol.
Packing: packed in 25kg plastic woven bag, 25kg Kraft paper bag, 25kg PE bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.
| Name: |
Sodium metabisulfit
|
| Appearance: | White Free Flowing Fine Crystal or Powder |
| Specification: |
Industrial grade 1) Purity (calculated with Na2S2O5): 96% 2) Iron (Fe): 0.005% 3) SO2: 65% 4) PH value: 4.0-4.6 5)Water insoluble matter: 0.05%
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Foodstuff grade 1) Purity (calculated with Na2S2O5): 98% 2) Iron (Fe): 0.0005% 3) Arsenic (As): 0.0002% 4) pH value: 4.0-4.6 5) Water insoluble matter: 0.05% 6) Heavy metal (Cal. in Pb): 0.002%
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| Package: | 25kg, 50kg pp woven bag with plastic lining, or 1000kg per package |
| Usage: |
1.Dye printing mordant. 2.Textile antichlor after being bleached.
3.Reducing agent and sulfonating agent for chemical and medical use. 4.Bamboo, wood, paper fiber bleaching agent, non-ferrous metal ore dressing agent, waste water treating , rubber freezing agent. |
Contact Person: Ms.xie
Tel: +8613975090964
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