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SODIUM HYDROSULPHITE(7775-14-6)

Name: SODIUM HYDROSULPHITE(7775-14-6)
Brand: Shengtai
SKU: pr2408211211
Price: 1098.88 USD
Availability: InStock

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CAS No.:

7775-14-6

Grade:

Industrial Grade

Content:

90%

Port:

Qingdao

Brand:

Shengtai

Packaging:

bag

Sample Available:

Yes

Price valid (until):

2025-05-31

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Tianjin Shengtai Chemical Co.,Ltd

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

10 days

Qualification:

Main Products:

Epichlorohydrin,Epoxy resin,Calcium chloride,2-Hydroxyethyl acrylate (HEA),2-HYDROXYPROPYLACRYLATE(HPA),2-Hydroxy Ethyl Methacrylate (HEMA)

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Product Details
Seller Information
Inquiry History

Description

Product Detail

Sodium dithionite is also called sodium hydrosulfite, sodium hydrosulphite, sodium sulfoxylate, and sulfoxylate. Sodium dithionite is not stable under physiological conditions, with the rate of decomposition increasing with increasing acidity. Upon contact with moisture, it is oxidized to hydrogen sulfite (HSO3-), sulfite (SO32-) and hydrogen sulfate (HSO4-). Under strongly acidic conditions it may liberate sulfur dioxide. Under anaerobic conditions (such as in the lower gastrointestinal tract), hydrogen sulfite (HSO3-) and thiosulfate (S2O32-) may be formed. Hydrogen sulfite (HSO3-) can be absorbed after ingestion. It is efficiently metabolized and the major part rapidly is excreted as sulfate into the urine.

Sodium dithionite is widely used in industry owing to its reducing properties and ability to react with oxygen. It is used in textile industry for dyeing, in the pulp and paper industry as a reducing bleach to remove yellow discoloration from cellulose based products, as an oxygen scavenger in boilers, in conservation to remove iron stains on cultural artifacts, and in water treatment for controlling iron flash on white fabrics in bleaching environments. It is also used in photographic film, clay, wine, leather goods, foods and beverages, polymers, cleaners, gas purification, environmental remediation, metal recovery, and chemical processing.

dithionous acid disodium salt;HYDROSULFITE;SODIUM HYPODISULFITE;SODIUM DITHIONITE;SODIUM HYDROSULFITE;SODIUM HYDROSULPHITE;blankit;burmol

ECHEMI Editorial Reference

Sodium dithionite is commonly known as insurance powder, also known as sodium hyposulfite, white crystalline powder or slightly yellow flaky crystals, odorless or with a slight smell of sulfur dioxide. It is very soluble in water and insoluble in alcohol. Its aqueous solution is unstable and belongs to a strong reducing agent. It is easy to absorb oxygen and oxidize when exposed to air, and it is also easy to absorb moisture and heat and deteriorate, and it can seize oxygen in the air to form agglomerates and emit a pungent sour smell. Sodium dithionite has two forms: dihydrate and anhydrous salt. Dihydrate is a slightly yellow flaky crystal with extremely unstable properties. It only exists in alkaline solution. When heated to a certain temperature, it will dehydrate and transform into anhydrous salt; anhydrous salt is a white crystalline powder and exists stably under room temperature drying. Heating sodium dithionite or contact with open flame will cause combustion, and the autoignition point is 250℃. Contact with water can release a large amount of hot sulfur dioxide gas and flammable sulfur vapor, causing violent combustion. When it encounters an oxidant, a small amount of water or absorbs humid air, it can generate heat, causing yellow smoke combustion, and even explosion. Sodium dithionite is toxic and irritating to the eyes and respiratory mucosa. Due to its properties, sodium dithionite can be used as an oxygen absorber in analysis, or as a dye intermediate and bleaching agent. It is also a strong reducing agent that can reduce many metal salts to metals.

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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:

Bleach

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:

Autoignition Temperature:

about 190 °C

See More Sodium dithionite Properties 

Hazard Identification

Classification of the substance or mixture

Self- heating substances and mixtures, Category 1

Acute toxicity - Category 4, Oral

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H251 Self-heating; may catch fire H302 Harmful if swallowed
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 â¦ 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 Storage

Precautions 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.

See More Sodium dithionite Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Epichlorohydrin,Epoxy resin,Calcium chloride,2-Hydroxyethyl acrylate (HEA),2-HYDROXYPROPYLACRYLATE(HPA),2-Hydroxy Ethyl Methacrylate (HEMA)

Location:
C5-517, Magnetic Capital International Central Avenue, Nankai District, Tianjin, China 300381

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
10 days

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2023

Company Certificates
- Hazardous chemicals business license
- Hazardous chemicals business license
Suntechemical located in Tianjin is a professional supplier of fine chemicals. We are manufacturer and trader. Since 2001, we have been acting as a leading supplier of specialty and fine chemicals in China. We handle a wide range of chemicals, including detergent raw materials, food additives, water treatment chemicals as well as textile and tanning-making chemicals. Relying on our professional supply chain management ability, we have established a stable cooperative relationship with domestic and foreign famous company such as DOW CHEMICALS, BASF, HUNTSMAN, TOSOH, DELAMINE, Yangzi Petrochemicals BASF, SINOPEC Group, Shanghai Yuanbang Chemical Industry, Jiangsu Sanmu, etc.

Company Profile

Inquiry History

55 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	SODIUM HYDROSULPHITE FORMAT BASE 84-88%	1.00 MT	Oct 15, 2026
Pakistan	Sodium Hydrosulfite 88%	23000 MT	Sep 12, 2026
Pakistan	Sodium Hydrosulfite (88%)	1 20' Fcl	Sep 11, 2026
Pakistan	Sodium Hydrosulfite 88%	1 20' Fcl	Sep 8, 2026
Pakistan	Sodium Hydrosulfite	1 20' Fcl	Aug 25, 2026
Egypt	Sodium Hydrosulfite	1 20' Fcl	Jul 31, 2026
Bangladesh	hydrose 88%	100 MT	Jul 23, 2026
India	Sodium Sulfoxide	250 G	Jul 13, 2026
Egypt	SODIUM HYDROSULPHITE 90%	1 KG	Jun 22, 2026
Germany	Sodium Hydrosulfite	10 MT	Jun 18, 2026
Bangladesh	Sodium Hydrosulfite	22500 KG	Jun 3, 2026
India	SODIUM HYDRO SULPHITE	500 KG	Jun 1, 2026
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

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SODIUM HYDROSULPHITE(7775-14-6)

Product Details

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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