Sodium Pyrosulfite: Leading Flotation Reagent for Mining Operations

Product Description: Sodium Pyrosulfite

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 strong odor of sulfur dioxide (SO2).

Melting Point: Decomposes at approximately 150°C

Density: 1.48 g/cm³

Solubility: Soluble in water (540 g/L at 20°C), soluble in glycerin, slightly soluble in ethanol.

Product Description: Sodium pyrosulfite is a versatile reducing agent used across different industries due to its effective reducing properties. It appears as a white crystalline powder that dissolves in water to form acidic solutions. The compound decomposes at temperatures above 150°C, releasing sulfur dioxide gas (SO2).

Applications:

• Brewing and Winemaking: Used as a preservative to prevent oxidation and spoilage, ensuring quality and longevity.
• Food Processing: Acts as a bleaching agent and preservative, maintaining the freshness and appearance of various food products.
• Pharmaceuticals: Employed as a reducing agent in the production of specific drugs, enhancing their efficacy.
• Chemical Synthesis: Utilized in the synthesis of dyes, pharmaceuticals, and other chemicals, providing key reactions in chemical processes.
• Textile Industry: Used as a reducing agent in dyeing processes and a bleaching agent for fabrics, ensuring vibrant and long-lasting colors.

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