What is Sodium Pyrosulfite?

Sodium Pyrosulfite is a chemical product listing on XCHEMI (https://www.xchemi.com), offered by Shaanxi Dideu Medichem Co. Ltd for international B2B procurement. The CAS Registry Number shown on this listing is 7681-57-4. Specifications on this page are provided by the supplier; confirm critical attributes before purchase.

What is the CAS number for this listing?

This XCHEMI product page lists CAS 7681-57-4 for Sodium Pyrosulfite. CAS numbers help align chemical identity across suppliers and regions. Always verify identity, grade, and impurity profile with supplier documentation (e.g., COA) before use in regulated processes.

How can I request a quotation or buy Sodium Pyrosulfite?

Use the XCHEMI marketplace actions on this listing (https://www.xchemi.com/product/724796201187864613.html) to contact Shaanxi Dideu Medichem Co. Ltd and request a quotation (RFQ). Offer price and currency—when shown—come from the supplier listing and may vary by quantity and shipping terms.

What purity, grade, and packaging are listed?

Purity: 99%. Grade: Industrial Grade. Appearance: White to slightly yellow Powder/Solid.

How should chemicals be stored and handled?

Follow supplier SDS / label instructions, local regulations, and your site safety program. XCHEMI is a B2B marketplace; obtain current SDS and handling guidance from Shaanxi Dideu Medichem Co. Ltd before receipt, storage, or use.

What are typical applications for Sodium Pyrosulfite?

Applications depend on industry segment and process requirements. Use this listing as a sourcing lead and validate fitness-for-purpose with Shaanxi Dideu Medichem Co. Ltd for your intended use (e.g., synthesis, formulation, manufacturing).

Is a safety data sheet (SDS / MSDS) available?

Request SDS/MSDS and regulatory documents from Shaanxi Dideu Medichem Co. Ltd through XCHEMI quotation or supplier contact. Marketplace summaries do not replace official safety documentation.

Who is the seller for this product on XCHEMI?

Shaanxi Dideu Medichem Co. Ltd is identified as the seller on this listing. You can open the supplier storefront from this page when available to review company profile and other listed chemicals.

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Sodium Pyrosulfite

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Shaanxi Dideu Medichem Co. Ltd

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Product Details & Description

Product Info

Product Name Sodium Pyrosulfite

CAS No. 7681-57-4

Catalog No. HH724795210188164612

Brand -

Purity 99%

Packing -

Package -

Lead Time -

Origin -

Loading Port SHANGHAI PORT

Chemical Identifiers

Melting Point 150 °C (decomp)

Boiling Point Decomposes

Water Solubility H2O: 540 g/L (20 ºC)

Density 1.4 g/cm3

Storage Temp Storage containers are predominantly made from 1.4571 grade stainless steel. Fiberglass-reinforced plastic containers are also suitable for storage. Paper or plastic sacks, steel barrels, or big bags made of synthetic fibers are used for transportation.

Flash Point -

Stability -

Appearance White to slightly yellow Powder/Solid

Refractive Index -

Product Info

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Product

Sodium Pyrosulfite

CAS No.

7681-57-4

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Other Supplier Reference

Product name

Purity

Packing

Lead Time

Country

Company Name

Details

Sodium Pyrosulfite

97%

25KG/BAG

China

QINGDAO EAST CHEMSOURCES TRADE CO.,LTD

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Sodium Pyrosulfite

97%

Bags

South Africa

Sidney Import Export

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Sodium Pyrosulfite

99%

25kg drum

China

Henan Kanbei Chemical Co.,ltd

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Sodium Pyrosulfite

99%

25kg/bag

China

Chongqing Chemdad

Request For Quotation

Sodium Pyrosulfite

99%

25kgs/bag

China

Tianjin Shengtai Chemical Co.,Ltd

Request For Quotation

Sodium Pyrosulfite

99%

100g;1kg;25g

China

SHANDONG LOOK CHEMICAL CO.,LTD

Request For Quotation

Sodium Pyrosulfite

96%

25kg per bag

China

Tianjin Blue Wild Cat Biotechnology Co., Ltd.

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Sodium Pyrosulfite

97%

20kg/0.1kg Bag (Customized For YELLOW MOUNTAIN)

China

SHANDONG JINYANG INDUSTRIAL CO.,LTD

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Sodium Pyrosulfite

99%

10.0 kg/box

China

First Chems Co., LTD

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Sodium Pyrosulfite

99%

1kg/bag,25kg/drum,25kg/bag

China

Shanghai Lonwin Chemical Co.,Ltd

Request For Quotation