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High Quality Factory Price Sodium Dithionite

  • 7775-14-6

  • Industrial grade

  • Na2O4S2

  • 173.90300

  • 2831101000

  • Sodium dithionite

  • Sodium sulfoxylate; Sodium hypodisulfite;Dithionous acid,disodium salt; Sodium dithionite;


1. Introduction of Sodium Dithionite

Chemical Name

Sodium Dithionite



Molecular Formula


Molecular Weight



Product name:

Sodium Hydrosulfite 88PCT grade

Batch Number





HG/T 2074-2011



Validity date

12 Months after the production date




88 PCT

Lot No. 21122828


White crystalline powder

White crystalline powder


Odorless or with a slight odor

of sulfur dioxide

Odorless or with a slight odor of sulfur dioxide

Na2S2O4 (%)

88 min


Na2S2O5 (%)



Na2CO3 (%)



Water Insolubles


0.05 max


Test Conclusion :Qualified excellent grade

2、Chemical properties

Its aqueous solution is unstable and has strong reducibility, which is a strong reductant. Exposure to the air is easy to absorb oxygen and oxidation, but also easy to absorb moisture fever and metamorphism, and can seize the oxygen in the air agglutination and a stimulating sour taste.

Safety term

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer).

S43:In case of fire, use ... (if water increases the risk, add - never use water).

Risk term

R7:May cause fire.

R22:Harmful if swallowed.

R31:Contact with acids liberates toxic gas.

Storage precautions:

Store in a cool, ventilated warehouse.  The relative humidity is kept below 75%.  Packing should be sealed and out of contact with air.  It should be stored separately with oxidizer, acid and combustible materials, and must not be mixed.  Explosion-proof lighting and ventilation facilities are adopted.  Do not use mechanical equipment and tools that may cause sparks.  The storage area shall be equipped with suitable materials to accommodate leaks.


It is widely used in reducing dyeing, reducing cleaning, printing and decolorization of textile industry, as well as bleaching of silk, wool, nylon and other fabrics, because it does not contain heavy metals, the color of the bleached fabric is very bright, not easy to fade. In a variety of substances, it can also be used for food bleaching, such as gelatin, sucrose, candied fruit, and soap, moving (planting) oil, bamboo, China clay bleaching. It can also be used in organic synthesis, such as dyes, pharmaceutical production as a reducing agent or bleaching agent, even sodium disulfite is the most suitable for wood pulp and paper bleaching agent.

Product Specification

Please click Contact Us or Email directly to info@hiseachem.com to get the latest specification.

Our services

Quality Control

Qingdao Hisea Chem is a company that focus on delivery reliable and high-quality products. Our analytical laboratory equipped with advanced apparatus as well as a professional chemist team that ensure our product meet your criteria. After you confirmed your order, we make sure your goods will be delivered with the corresponding certificate of analysis (CoA). For more details of our product CoA, Check Products or talk to one of our sale representative.

Quotation & Payment

Qingdao Hisea Chem offer competitive price to our customer. We offer Free on Board (FOB), Cost, Insurance, and Freight (CIF) price to your designated port. Payment options is flexible with Hisea chem, our company have gained great confidence with difference banks all around the world. Email us if you have questions about our quotation and payment policy.

Shipment & After sale service

After over 20 years on global trade, Qingdao Hisea Chem has formed a mature international trade logistics chain. For most of our products, we offer “door to door service”, our professional team gives you this “one-stop” service to save your time and increase your purchase experience.


Q: What's your advantage? Why choose you?

A: More than 10 years experienced of production chemical production. We have the most professional techniques and team. Great production capacity Sustainable Supply. According to customer requirements, we support the customized.

Q: What's the payment?

A: T/T would be better with quick transfer and few bank. LC could also be accept, but the proceure is complex and the fee is high. You can also use Western Union. For large quantity, sea shipping can be provided.

Q: Are you a factory or trading company?

A: We are a professional manufacturer. We are warmly welcome clients from worldwide to visit our factory and cooperate with us.

Q: How can i get some samples?

A: We are honored to offer you samples. New clients are expected to pay for the courier cost,the samples are free for you.

Q: When can i get the price?

A: We usually quote within 24 hours after we get your inquiry. If you are urgent to get the price, Please tell us in your email so that we will regard your inquiry priority.

Q: Where is your factory located?

A: Our factory is located in Qingdao,China.

Q: What is your sample policy?

A: Some of our samples are available for free,while others are available at a cost.

About us

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Road No.1#, Port Chem Logistics Park, Qingdao, China
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