Free Sample Sodium Metabisulfite 97% 98%
| Price: |
US $ 0.2-0.416 |
| Min Order: |
50016 |
| Pay Type: |
L/C,T/T,D/P,Western Union,Paypal |
Product Specifications
| CAS No.: |
7681-57-4 |
| Einecs No: |
231-673-0 |
| Mf: |
Na2s2o5 |
| Appearance: |
White Powder |
Product Description
Product Description
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.
Molecular Formula : Na2S2O5
Molecule Weight : 190.12
CAS NO .: 7681-57-4
Appearance : White Free Flowing Fine Crystal or Powder
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.
Specification For Food Grade and Industry Grade :
White powder sodium metabisulfite price 97%
| Item | Food Grade | Industry Grade |
| Purity ( As Na2S2O5)% | 98min | 97min |
| Sulfur Dioxide( SO2)% | 65.0min | 65.0min |
| Arssnic (As)% | 0.0002max | -- |
| Heavy Metals (As Pb)% | 0.0005max | -- |
| Selenium (As Se)% | 0.0005max | -- |
| Iron (As Fe)% | 0.001max | 0.002max |
| Water Insoluble% | 0.02max | 0.05max |
| PH Value | 4.0-4.8 | 4.0-4.8 |
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 |
Application:
(1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).
(2) Industry Grade: Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of Stap; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde
The hide profession employ to do to molt dose and pliable dose and wearproof dose; sewage treatment, and so on .
(3) Pharmaceutical Grade: In chemical synthesis in the production of acrylic fibre, vitamin K, vitamin A, pharmaceutical intermediates, etc.
(4) Photo Grade: The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose..
Shanghai Just Import & Export Co., Ltd. Is a professional supplier specializing in food additives and food ingredients. Our headquarter and manufacturer is located in Quanzhou, Fujian province. Based on advanced technology and strong support from various sources, in 2016, We set up a branch company in Shanghai and creat our new brand JUSTCHEM, dedicating to offer better sales service for food additives as well as to expand overseas markets.
Justchem have departments including international sales, purchasing, technical, after-sales service, network engineering, general affairs, etc. We are able to offer service and support in English, Portuguese, Russian, Japanese, Korean and other languages. Within the efforts of all staff of us, our market has covered more than 40 countries and areas, which prompting us to be the most reliable partner of food producer and merchant all over the world.
At present, Justchem Company has became one of the main worldwide suppliers of food additives and ingredients. Our main category contains the below: Agar Agar, Xanthan Gum, Sodium Alginate, Sodium Carboxymethyl Cellulose (CMC), Calcium Alginate, Propylene Glycol Alginate(PGA), Carrageenan, Sodium Saccharin, Aspartame, Sucralose, Liquid Glucose, Maltodextrin, Stevia, Acesulfame-K, Ascorbic Acid, Sodium Ascorbate, Calcium Citrate, Citric Acid Monohydrate, Potassium Citrate, Sodium Citrate, Sodium Lactate, Sodium Tripolyphosphate (STPP), Sodium Acid Pyrophosphate, Monosodium Phosphate, Potassium Pyrophosphate (TKPP), Monosodium Glutamate(MSG), Sorbic Acid, Potassium Sorbate, Sodium Benzoate, Potassium Benzoate, Calcium Propionate, Benzoic Acid, Non dairy creamer, Vanillin, Egg Yolk Powder, Vital Wheat Gluten and etc.
We offer you 7*24 online sales service. We are committed to offer superior service and satisfy the needs of every customer. We welcome customers from all over the world and Justchem is willing to have sincere cooperation with you for common development and win-win future! We welcome all customers from all over the world!
Shanghai Just Import and Export Co., Ltd
Address: 9F, Building F, 7001 Zhongchun Road, Shanghai China
Tel: +86-21- 51061786
Overseas Market: +86-15618159355
Contact person: Ms Amy
Headquarter: No. 41 Binhai Road, Shenhu, Jinjiang, Quanzhou, Fujian Province
Factory Address: Xunguang Industry Park, Shenhu, Jinjiang, Quanzhou, Fujian Province
Tel: +86-595-88283896
