Sodium Hydrosulfite 90%
47 Inquiries
7775-14-6
Industrial Grade
90%
QINGDAO
25kg/0.2kg Bag
2017-06-15
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Product Description
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Seller Information
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Inquiry History
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Description
Chinese name with two of sodium
English name hydrosulfite Sodium
Chinese alias insurance powder; low sodium sulfite; sodium bisulfite
RN 7775-14-6 CAS
EINECS No. 231-890-0
Molecular formula Na2O4S2
Molecular weight 174.1071
Physical and chemical properties of white crystalline powder.
Relative density 2.3~2.4
Solubility is very soluble in water, insoluble in alcohol.
Uses mainly used as printing and dyeing reducing agent, pulp, hemp, oil and other bleaching agents, and for pharmaceutical, analytical reagents, etc.
Basic 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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Location:
Changjiang Road, Laiyang economic and Technological Development Zone, Yantai City, Shandong Province, province
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Inquiry History47 Inquiries
Country Product Purchase Quantity Date Posted 
Turkmenistan
Sodium Hydrosulfite 88%
20 MT Apr 10, 2026 
India
Sodium hydrosulphite
1.00 KG Jan 22, 2026 
Guinea
Sodium Hydrosulfite
20 40' Fcl Jan 5, 2026 
Pakistan
Sodium Hydrosulfite
240000 KG Dec 29, 2025 
United Arab Emirates
Sodium HYDROSULPHITE 92 %
100.00 MT Oct 9, 2025 
Vietnam
Sodium Hydrosulphite
2 20' Fcl Oct 9, 2025 
Bangladesh
SODIUM HYDROSULPHITE - 88% MIN ( 50 KG BLUE IRON DRUM )
44 MT Aug 15, 2025 
Nigeria
Hydrosulfite Sodium
270 TON Jul 24, 2025 
Ivory Coast
Sodium hydrosulfite
1 20' Fcl Jul 17, 2025
Ivory Coast
Sodium hydrosulfite
1 20' Fcl Jul 17, 2025 
Egypt
Sodium Hydrosulphite
1 MT Jun 4, 2025 
Ireland
Sodium Hydrosulfite
1.5 TON May 26, 2025
United Arab Emirates
sodium hydrosulfite
1 20' Fcl May 21, 2025
Egypt
Sodium Hydrosulphite
1 MT Dec 25, 2024
Bangladesh
sodium Hydrosulphite 88%
1.00 MT Sep 29, 2024
Bangladesh
Sodium Hydrosulphite
1000 KG Sep 27, 2024 
Peru
SODIUM HYDROSULPHITE
1 20' Fcl Aug 21, 2024
Bangladesh
Dragon Brand Sodium Hydrosulfite 90%
15 TON Jun 1, 2024 
Myanmar
Sodium Hydrosulphite
1 MT Feb 18, 2024 
Turkey
Sodium Hydrosulfite
20 TON Jan 31, 2024 Post an enquiry for this product
