Sodium Metabisulfite 96.5%
109 Inquiries
7681-57-4
Industrial Grade
96.5%
SHANGHAI
25kg/0.1kg Bag (Customized For YELLOW MOUNTAIN)
2016-07-15
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Product Description
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Seller Information
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Inquiry History
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Description
Molecular formula: Na2S2O5
Molecular weight: 190.1065
Properties: white or light yellow crystalline powder, has the odor of sulfur dioxide
density (g/mL 25 degrees C): 1.48
relative vapor density (g/mL, air =1): 1.10
The melting point (4 degrees C): 150
Main use
1 sodium metabisulfite is reduced more strongly than sulfite, sodium sulfite and similar effect. The provisions of China can be used for fruit, biscuits, sugar, sugar, maltose, glucose, glucose, liquid candy, bamboo shoots, mushrooms and canned mushrooms, the maximum usage of 0.45g/kg. The residues of candied fruit, bamboo shoots, mushrooms and mushroom, grape and blackcurrant juice concentrate (SO2) less than 0.05/kg; residual sugar, biscuits, fans and other varieties of less than 0.1g/kg; residual liquid glucose may not have 0.2g/kg
2. photographic developer. Can also be used as a bleaching agent, food preservatives, color protecting agent, bulking agent, antioxidant and preservative agent, dyeing mordant, rubber coagulant, but also the production of chloroform, phenprofone and benzaldehyde as raw material.
3 food industry used as bleaching agent, preservative, loose agent, antioxidant, color protecting agent and preservative.
4 used as analytical reagent. Also used as a reducing agent, preservative, antioxidant. For the synthesis of dyes, pharmaceutical industry.
Basic Info-
Product Name:
Sodium pyrosulfite
Other Name:Disulfurous acid,sodium salt (1:2);Pyrosulfurous acid,disodium salt;Disulfurous acid,disodium salt;Sodium pyrosulfite (Na2S2O5);Sodium pyrosulfite;Sodium metabisulfite;Sodium metabisulfite (Na2S2O5);Disodium pyrosulfite;Fertisilo;Disodium disulfite;Sodium disulfite (Na2S2O5);Disodium metabisulfite;Disodium pyrosulfite (Na2S2O5);Campden Tablets;Colorstrip Catalyst 100;E 223;Sobis;Sobisu;Sodium sulfur oxide (Na2S2O5);NSC 158277;NSC 227243;15771-29-6;1287784-10-4;2242622-57-5
CAS No.:7681-57-4
Molecular Formula:H2O5S2.2Na
InChIKeys:InChIKey=ZBVPOSMABOMSMZ-UHFFFAOYSA-N
Molecular Weight:190.095
Exact Mass:189.898254
EC Number:231-673-0
UNII:4VON5FNS3C
ICSC Number:1461
UN Number:1759
DSSTox ID:DTXSID0029684
Color/Form:White hexagonal crystals or powder|White to yellowish crystals or powder.|Colorless crystals|White granular or powdered salt
HScode:2832100000
Categories:
Characteristics-
PSA:
125
XLogP3:-3.7
Appearance:White to slightly yellow Powder/Solid
Density:1.4 g/cm3
Melting Point:150 °C (decomp)
Boiling Point:Decomposes
Water Solubility:H2O: 540 g/L (20 ºC)
Storage Conditions:Storage containers are predominantly made from 1.4571 grade stainless steel. Fiberglass-reinforced plastic containers are also suitable for storage. Paper or plastic sacks, steel barrels, or big bags made of synthetic fibers are used for transportation.
Toxicity:LD50 orally in Rabbit: 1540 mg/kg LD50 dermal Rat > 2000 mg/kg
Flammability characteristics:Noncombustible Solid
Odor:In the presences of traces of water, it develops an odor of sulfur dioxide
PH:4,0-5,5 (10 % aqueous solution)
Experimental Properties:... in moist air it decomposes with loss of part of its SO2 content and by oxidation to sodium sulfate ... Dry sodium metabilsulfite is more stable to oxidation than dry sodium sulfite|Slowly oxidized to the sulfate on exposure to air and moisture
Air and Water Reactions:Acts as a corrosive acid when mixed with water. Reacts slowly with air and water.
Reactive Group:Sulfite and Thiosulfate Salts
Reactivity Alerts:Strong Reducing Agent
Reactivity Profile:SODIUM METABISULFITE is incompatible with the following: Heat (decomposes) [Note: Slowly oxidized to the sulfate on exposure to air & moisture.] (NIOSH, 2016).
Flammable Limits:Noncombustible Solid
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 4, Oral
Serious eye damage, Category 1
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H302 Harmful if swallowed
H318 Causes serious eye damage
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P317 Get medical help.
Storage none
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from acids and strong oxidants.The bulk material should be stored in a well closed container, protected from light, in a cool, dry place.
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Seller Information
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Business Type:
Manufactory
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Location:
Anhui Xuancheng City Economic Development Zone, Xuancheng county XuanZhou Pine Springs Road
Xuancheng City Kai ang Chemical Co., Ltd. is specialized in the production of sodium sulfite, sodium metabisulfite, Sodium Bisulfite, three stage filter enterprises, has been formed with an annual output of 50 thousand tons of sodium sulfite, sodium metabisulfite, Sodium Bisulfite 80 thousand tons of 50 thousand tons of production capacity, professional services in the concrete admixture, printing and dyeing, papermaking, dyes, wastewater treatment and food processing and other industries, is the domestic large scale and centralized production, development, management of professional production enterprises. Address: Xuanzhou Economic Development Zone West Songquan zip code: 242000 Tel: (0563) 2062337 contact: Wang manager mobile phone: 15955633888 e-mail: 1404368967@QQ.com website: www.xckaiang.com
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Inquiry History109 Inquiries
Country Product Purchase Quantity Date Posted 
India
sodium metabisulfite 7681-57-4
200 MT Oct 3, 2024
India
Sodium Metabisulphite
20000.00 TON May 28, 2025 
Georgia
Sodium Metabisulfite
5000 KG Dec 8, 2025 
Pakistan
Sodium metabisulfite
3.00 KG Jun 5, 2026
Pakistan
Sodium Metabisulfite
1.00 KG Jun 3, 2026 
Russia
sodium metabisulfite
1 KG May 29, 2026
Russia
sodium metabisilfite
200 MT May 28, 2026 
Sri Lanka
Sodium Metabisulfite
27 MT Apr 7, 2026 
Oman
Sodium metabisulfite
20 MT Mar 25, 2026 
Egypt
Sodium Metabisulfite
3000.00 KG Mar 19, 2026
India
Sodium Metabisulphite
1000 KG Mar 18, 2026 
Indonesia
Sodium Metabisulphite
13200 L Feb 6, 2026 
Bahrain
Sodium Metabisulfate
1.00 KG Feb 4, 2026
India
Sodium Metabisulphite
2.00 MT Jan 21, 2026 
United States
Sodium Metabisulphite 97%
28 MT Jan 4, 2026
Pakistan
Sodium metabisulfite
3.00 20' Fcl Dec 23, 2025 
South Africa
Sodium Metabisulphite
1 MT Nov 14, 2025
Pakistan
Sodium Metabisulfite 97%
1.00 KG Nov 4, 2025
Pakistan
Sodium Metabisulfite
3.00 20' Fcl Oct 13, 2025
India
Sodium Meta Bi Sulphite
2.00 MT Oct 11, 2025 Post an enquiry for this product
