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Sodium Hydrosulfite

Sodium Hydrosulfite

Basic Information

Sodium Hydrosulfite is a white to grayish-white crystalline powder. It is soluble in water, and its aqueous solution is reducing; it decomposes on exposure to moisture, acids, or heat. It is used in reductive bleaching of textiles, dye reduction, pulp bleaching, mineral flotation, food and sugar-solution decolorization, and water treatment.

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product description

Basic Information

Property Value
CAS No. 7775-14-6
Molecular Formula Na2S2O4
Molecular Weight 174.10

product description

Sodium Hydrosulfite is a white to grayish-white crystalline powder. It is soluble in water, and its aqueous solution is reducing; it decomposes on exposure to moisture, acids, or heat. It is used in reductive bleaching of textiles, dye reduction, pulp bleaching, mineral flotation, food and sugar-solution decolorization, and water treatment.

Chemical Properties

Property Value
Melting point Decomposes on heating
Density Approx. 2.38 g/cm3
Appearance White to grayish crystalline powder
Water solubility Soluble
Chemical character Strong reducing agent
Stability Sensitive to moisture, acids and oxidizers

Safety Information

Property Value
Hazard class Reducing agent; reactive
Main hazards Reacts with moisture, acids or oxidizers and may release sulfur dioxide
Storage Keep dry and away from acids, oxidizers and heat
Handling Avoid moisture and dust formation
Transport note Reactive reducing solid

Product Usage

Used in reductive bleaching of textiles, dye reduction, pulp bleaching, mineral flotation, food and sugar-solution decolorization, and water treatment.

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Shipping And Transportation

Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

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FAQ

Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.


Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.


Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.


Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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