Sodium Hydrosulfite with ISO
TDS 49 Inquiries
7775-14-6
Industrial Grade
SHANGHAI
50kg/18kg Blue Iron Drum
2019-12-31
Synthetic ammonia,urea,compound fertilizer,ammonium phosphate,soda ash,ammonium chloride
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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:Na2S2O4
Origin: China
Appearance: White crystal powder
Application
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. It is also used in bleaching paper pulps , especially mechanical pulps, it’s the most fittable bleaching agent in pulps.
3. It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
4. It is used in mineral, the compound of thiourea and other sulphides.
5. It is used as reducing agent in chemical industry.
6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable,
vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms
Package
(25)Kg/Drum
CertificatesBasic Info-
Product Name:
Sodium dithionite
Other Name:Dithionous acid,sodium salt (1:2);Dithionous acid,disodium salt;Sodium dithionite;Vatrolite;Hydros;Blankit;Sodium dithionite (Na2(S2O4));Disodium dithionite;Disodium hydrosulfite;Sodium hydrosulfite;Sodium hyposulfite;Burmol;Sodium hydrosulfite (Na2S2O4);V-Brite B;Blankit IN;Hydrosulfite R Conc;Cyclanon ARC;Blankit S;Hydrosulfite F;Oxygen Scavenger SHS;Albite F;1340-77-8
CAS No.:7775-14-6
Molecular Formula:H2O4S2.2Na
InChIKeys:InChIKey=PEXMEGQPKTWBOJ-UHFFFAOYSA-N
Molecular Weight:174.1071
Exact Mass:173.903
EC Number:231-890-0
UNII:2K5B8F6ES1
ICSC Number:1717
UN Number:1384
DSSTox ID:DTXSID9029697
Color/Form:White or grayish-white crystalline powder|Light-lemon-colored solid in powder or flake form|White, colorless or yellow-white crystals
HScode:28311010
Categories:
Characteristics-
PSA:
118.68
XLogP3:0.391
Appearance:White to grayish-white granular powder
Density:2.19
Melting Point:166-168 °C
Boiling Point:1390°C
Flash Point:>100°C o.c.
Water Solubility:H2O: 250 g/L (20 °C)
Storage Conditions:Materials to avoid: strong oxidizing agents, acids.
Toxicity:LD50 orally in Rabbit: 2500 mg/kg
Explosive limit:Closed containers may rupture violently when heated.
Odor:Faint sulfurous
Experimental Properties:Strong reducing agent; also available in liquid form|Decomposes violently when heated to 190 °C and emits toxic fumes of SOx and Na2O.
Air and Water Reactions:Sodium dithionite is a combustible solid which slowly decomposes when in contact with water or water vapor, forming thiosulfates and bisulfites. This reaction evolves heat, which can further accelerate the reaction or cause surrounding materials to burn. If the mixture is confined, the decomposition reaction can result in pressurization of the container which may then rupture forcefully. Upon standing in air it slowly oxidizes, generating toxic sulfur dioxide gas. (NFPA, 2010)
Reactive Group:Anhydrides
Reactivity Alerts:Strong Reducing Agent
Reactivity Profile:Sodium dithionite is a combustible solid which slowly decomposes when in contact with water or water vapor, forming thiosulfates and bisulfites. This reaction evolves heat, which can further accelerate the reaction or cause surrounding materials to burn. If the mixture is confined, the decomposition reaction can result in pressurization of the container which may then rupture forcefully. Upon standing in air it slowly oxidizes, generating toxic sulfur dioxide gas. (NFPA, 2010)
Autoignition Temperature:about 190 °C
Hazard IdentificationClassification of the substance or mixture
Self- heating substances and mixtures, Category 1
Acute toxicity - Category 4, Oral
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H251 Self-heating; may catch fire
H302 Harmful if swallowed
Precautionary statement(s) Prevention P235 Keep cool.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Response P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
Storage P407 Maintain air gap between stacks or pallets.
P410 Protect from sunlight.
P413 Store bulk masses greater than ⦠kg/â¦lbs at temperatures not exceeding â¦Â°C/â¦Â°F.
P420 Store separately.
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
NO open flames. NO contact with combustible substances or water. 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
Dry. Well closed. 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:
Synthetic ammonia,urea,compound fertilizer,ammonium phosphate,soda ash,ammonium chloride
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Location:
No.12 Qimen road, Hefei city, Anhui province, China.
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Payment Terms:
TT against copy of documents
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Average lead Time:
60
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Total Annual Revenue:
Less than $1 million
CNSG Anhui Hong Sifang Co., Ltd. is a large scale state owned chemical industry, has been founded by CNSG as holding. We has obtained ISO9001:2000 Quality Management System Certificate, ISO14001:2004 Environmental Management System Certificate and GB/T28001-2001 Occupational Health and Safety Management System Certificate in 2004. We mainly produce Povidone K15, K17, K25, K30, K90, crosspovidone, PVP iodine, 2-pyrrolidone, N-methyl-2-pyrrolidone and N-Vinyl-2-pyrrolidone, paste PVC, soda ash, sodium hydrosulphite, sodium metabilsulphite, caustic soda flakes, ferric chloride, Urea, Compound fertilizer, which have been sold to all over the home and Europe, America and Asia market. Our annual output of compound fertilizer of 1.5 million tons, NMP of 10,000 tons, PVP series of 31,000 tons, sodium hydrosulfite of 120,000 tons, paste PVC of 130,000 tons, soda ash of 1 million tons. We’re successful to won reputation among all of our business partners by supplying high quality goods and excellent service. We’re very pleased to establish business relations with you.
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Inquiry History49 Inquiries
Country Product Purchase Quantity Date Posted 
Turkmenistan
Sodium Hydrosulfite 88%
20 MT Apr 10, 2026 
Kenya
Sodium Hydrosulfite
20 20' Fcl Feb 27, 2026 
Nigeria
sodium hydrosulfite
1 KG Feb 3, 2026
Nigeria
sodium hydrosulphite
1 KG Feb 2, 2026 
India
Sodium hydrosulphite
1.00 KG Jan 22, 2026 
Egypt
sodium hydrosulfite 90 %
22000 KG Jan 13, 2026 
Guinea
Sodium Hydrosulfite
20 40' Fcl Jan 5, 2026 
Pakistan
Sodium Hydrosulfite
2.00 20' Fcl Dec 30, 2025 
Malaysia
Sodium Hydrosulphite
1 20' Fcl Dec 3, 2025
Malaysia
Sodium Hydrosulphite 90%
1 KG Dec 2, 2025
Pakistan
Sodium Hydrosulfite 90%
10 20' Fcl Nov 4, 2025 
Vietnam
Sodium Hydrosulfite
1 20' Fcl Oct 16, 2025 
South Africa
Sodium Hydrosulfite
86400 KG Sep 23, 2025 
Australia
Sodium Hydrosulfite 88%
1 BOU Aug 11, 2025
Nigeria
Hydrosulfite Sodium
270 TON Aug 1, 2025 
Ivory Coast
Sodium hydrosulfite
1 20' Fcl Jul 17, 2025 
Ireland
Sodium Hydrosulfite
1.5 TON May 26, 2025 
Myanmar
Yl -3 (Sodium Hydrosulphite)
3 KG Mar 24, 2025
Pakistan
sodium dithionite
1 MT Oct 20, 2024
India
Sodium Hydrosulfite
1 40' Fcl Oct 16, 2024 Post an enquiry for this product
