Sodium Pyrosulfite: Essential Mining Chemical for Flotation Processes
US$500.00 - 1,000.00 | 1 Ton (MOQ) |
Hunan Fortune Technology Co., LTD.
Hunan, China
Last Login Date:
Jul 01, 2025
Business Type:
Manufacturer/Factory
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Product Description
Product Description: Sodium Pyrosulfite - The Essential Mining Chemical
Product Name: Sodium Pyrosulfite
CAS Number: 7681-57-4
Molecular Formula: Na2S2O5
Molecular Weight: 190.10 g/mol
Appearance: White or nearly white, crystalline powder or small crystals with a pronounced sulfur dioxide (SO2) odor.
Melting Point: Decomposes at approximately 150°C
Density: 1.48 g/cm³
Solubility: Highly soluble in water (540 g/L at 20°C), soluble in glycerin, and slightly soluble in ethanol.
Product Description: Sodium pyrosulfite is a highly versatile reducing agent prized for its efficiency across various industries. This white crystalline powder dissolves to form acidic solutions and starts decomposing at temperatures above 150°C, emitting sulfur dioxide gas.
Applications:
- Brewing and Winemaking: Acts as a preservative, effectively preventing oxidation and spoilage.
- Food Processing: Serves as a potent bleaching agent and preservative in numerous food products.
- Pharmaceuticals: Used as a reducing agent in the production of various drugs.
- Chemical Synthesis: Integral in the synthesis of dyes, pharmaceuticals, and other chemicals.
- Textile Industry: Employed as a reducing agent in dyeing processes and a bleaching agent for textiles.
Item | Specification |
Product Name | Sodium Pyrosulfite |
CAS No. | 7681-57-4 |
Appearance | White powder |
Content | 95% min |
Shelf Life | 2 years |
Packing | 1kg/bag,25kg/bag or as your requirements |
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