Sodiumsulfite Technical Grade
TDS 32 Inquiries
7757-83-7
Industrial Grade
SHANGHAI
25kg/0.12kg Bag
2017-07-20
Sodium metabisulphite,Sodium sulphite
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Product Description
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Seller Information
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Inquiry History
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Description
Quick Details
Classification: Other Inorganic Salts
CAS No.: 7757-83-7
Other Names: Sulfurous acid, disodium salt
MF: Na2SO3
EINECS No.: 231-821-4
Place of Origin: Hunan, China (Mainland)
Grade Standard: Food Grade, Industrial Grade
Purity: 97%, 96% min
Appearance: White crystalline powder
Application: Main used in medicine industry,manufacturing paper, bleaching plant
Brand Name: Sanxiang
Model Number: AS085
Molecular weight: 126.04
Color: White
Quality standard: Q/320124JM02-2003
Specific gravity: 2.633
Stability: Stable under ordinary conditions
H.S. Code: 2832.10
pH: 9.5-10.5
Specification of the Anhydrous Sodium Sulfite
1,Molecular formula : Na2SO3
2,Molecular weight : 126.04
3,Appearance : white crystalline powder
4,Main content :97%
5,Competitive price,6,Pass ISO, producing under strict inspection
6,Annuual production:20,000mt
CertificatesBasic Info-
Product Name:
Sodium sulfite
Other Name:Sulfurous acid,sodium salt (1:2);Sulfurous acid,disodium salt;Anhydrous sodium sulfite;Disodium sulfite;Sodium sulfite (Na2SO3);Sodium sulfite anhydrous;Sodium sulfite;Disodium sulfite (Na2SO3);S-WAT;E 221;68135-69-3
CAS No.:7757-83-7
Molecular Formula:H2O3S.2Na
InChIKeys:InChIKey=YKZJGZHPDUVUKN-UHFFFAOYSA-N
Molecular Weight:126.037
Exact Mass:125.936356
EC Number:231-821-4
UNII:VTK01UQK3G
ICSC Number:1200
DSSTox ID:DTXSID2044260
NCI Thesaurus Code:C28205
Color/Form:Small crystals or powder|White hexagonal crystals|White crystals or powder
HScode:28321000
Categories:
Characteristics-
PSA:
82.4
XLogP3:-4
Appearance:Sodium sulfite is a white odorless powder. Density 2.633 g / cm3. Moderately toxic. Sinks in water and dissolves slowly. Also transported as a heptahydrate Na2SO3.7H2O.
Density:2.63 g/cm3
Melting Point:>500°C
Boiling Point:Decomposes (NTP, 1992)
Refractive Index:1.484
Water Solubility:H2O: 23 g/100 mL (20 ºC)
Storage Conditions:Sodium sulfite should be stored in a well-closed container in a cool, dry, place. In solution, sodium sulfite is slowly oxidized to sulfate by dissolved oxygen; strong acids lead to formation of sulfurous acid/ sulfur dioxide. On heating, sodium sulfite decomposes liberating sulfur oxides.
Vapor Pressure:Negligible (NTP, 1992)
Toxicity:Non-toxic
Odor:Odorless
Taste:Saline, sulfurous taste
PH:8,5-11,5 (anhydrous: 10 % solution; heptahydrate: 20 % solution)
Experimental Properties:Density: 1.539. MP: decomposes; loses 7 H2O at 150 °C /Sodium sulfite heptahydrate/|Efflorescent crystals. Unstable, oxidizing in air to sulfate. Soluble in 1.6 parts water, about 30 parts glycerol; sparingly soluble in alcohol. Aqueous solution is alkaline and dissolves sulfur; pH approximately 9 /Sodium sulfite heptahydrate/
Air and Water Reactions:Soluble in water. Reacts with hot water, steam or acids to produce corrosive material.
Reactive Group:Sulfite and Thiosulfate Salts
Reactivity Alerts:Strong Reducing Agent
Reactivity Profile:SODIUM SULFITE is a reducing agent, particularly under basic conditions. Reacts with oxidizing agents such as peroxides, epoxides, oxoacids. Emits toxic fumes of sodium oxide and oxides of sulfur if heated to decomposition [Lewis, 3rd ed., 1993, p. 1174].
Autoignition Temperature:Not flammable (USCG, 1999)
Hazard IdentificationClassification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) none
Precautionary statement(s) Prevention none
Response none
Storage none
Disposal none
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 strong oxidants and acids. Store in an area without drain or sewer access.
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Seller Information
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Business Type:
Manufactory
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Main Products:
Sodium metabisulphite,Sodium sulphite
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Location:
Qilishan,yueyang ,Hunan ,China
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Payment Terms:
TT against copy of documents,L/C
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Total Annual Revenue:
$5 million-$10 million
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Total Employees:
101-200
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Certifications:
ISO22000,ISO9001,ISO22000,ISO9001,ISO22000,ISO9001,ISO
Founded in 1999, Hunan Yueyang Sanxiang Chemical Co., Ltd. is a complex manufacturer of Sodium metabisulfite, Anhydrous Sodium sulfite and Manganous Carbonateo With a land of 20,000 sqm, 200 employees, 12 million yuan registration funds and 8 million yuan annual production value ,our factory is located at the bank side of Dongting Lake and 5 km away from the downtown of Yueyang city; meanwhile,our company is next to national highway 107, Jingzhu express way, Jinguang railway and Changjiang river,and we really enjoy good location.
With experienced technicians, leading facilities, modern management system and excellent after-service system ,we now have annual productive capacity of 30,000 tons of Sodium Metabisulfite ,20,000 tons of Anhydrous Sodium sulfite and l,000 tons of Manganese carbonate. Our new factory in Sichuan province will be started production by September 2012. Untill then, we can supply more than 70000 tons of sodium metabisulphite, 38000 tons of Anhydrous Sodium sulfite.Basing on such tenet of "Mutual benefits, Friendly cooperation, and Co-development", all related business all over the world are welcomed, and will be attended with excellent service.
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Inquiry History32 Inquiries
Country Product Purchase Quantity Date Posted 
India
Sodium Sulfite anhydrous 98 %
200.00 KG Apr 19, 2024 
Egypt
96% Sodium Sulfite
40 MT Apr 30, 2026 
South Africa
Sodium Sulphite
50 MT Feb 18, 2026
India
Sodium sulphite
10.00 MT Feb 11, 2026 
United States
Sodium Sulfite
1 MT Nov 26, 2025 
Qatar
Sodium Sulphite (Na2SO3)
10.00 MT Jun 20, 2025 
Saudi Arabia
Sodium Sulfite
1 KG Jun 5, 2025
India
sodium sulfite
20.00 TON Apr 1, 2025
Qatar
Sodium Sulphite
25 TON Dec 23, 2024 
Kuwait
Sodium Sulfite Anhydrous
12800 MT Jul 25, 2024 
Vietnam
Sodium Sulphite
27 TON Jul 1, 2024
India
Sodium sulphite
1.00 MT Jun 26, 2024
India
Sodium Sulphite
20.00 MT May 20, 2024 
Myanmar
SODIUM SULFITE
26 TON Jan 24, 2024 
United Arab Emirates
Sodium sulfite 96%
25.00 KG Jul 24, 2025 
Russia
sodium sulfite, anhydrous
100 TON Jul 23, 2025
Kuwait
ANHYDROUS SODIUM SULPHITE
12800 MT Jul 25, 2024 
Trinidad and Tobago
Sodium sulfite 98% white powder
31.2 MT Nov 3, 2023
Vietnam
Sodium sulfite
1 20' Fcl Jul 3, 2023
India
Allyl bromide
4000 KG May 11, 2026 Post an enquiry for this product
