Alliance Chemical sodium metabisulfite food grade in white 2-pound plastic container with screw cap
Alliance Chemical sodium metabisulfite food grade in white 2-pound plastic container with twist-off cap
Alliance Chemical sodium metabisulfite food grade in white 2-pound plastic container with screw cap
Alliance Chemical sodium metabisulfite food grade in white 2-pound plastic container with screw-on lid
Alliance Chemical sodium metabisulfite food grade in white 2 lb plastic container with screw cap
Alliance Chemical sodium metabisulfite food grade in white 5-pound plastic jar with secure lid
Alliance Chemical sodium metabisulfite food grade in white 5-pound plastic container with secure lid
Alliance Chemical sodium metabisulfite food grade in white 5-pound plastic container with screw cap
Alliance Chemical sodium metabisulfite food grade in silver 50-pound plastic bag with clear label
Alliance Chemical sodium metabisulfite food grade in four white 50-pound bags with clear labeling
Alliance Chemical sodium metabisulfite food grade in four 50-pound bags with clear labeling
Alliance Chemical sodium metabisulfite food grade in 50-pound white plastic bag with label

Sodium Metabisulfite - Food Grade

$30.00
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$30.00
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Sodium Metabisulfite - Food Grade

$30.00
Alliance Chemical sodium metabisulfite food grade in white 2-pound plastic container with screw cap
Alliance Chemical sodium metabisulfite food grade in white 2-pound plastic container with twist-off cap
Alliance Chemical sodium metabisulfite food grade in white 2-pound plastic container with screw cap
Alliance Chemical sodium metabisulfite food grade in white 2-pound plastic container with screw-on lid
Alliance Chemical sodium metabisulfite food grade in white 2 lb plastic container with screw cap
Alliance Chemical sodium metabisulfite food grade in white 5-pound plastic jar with secure lid
Alliance Chemical sodium metabisulfite food grade in white 5-pound plastic container with secure lid
Alliance Chemical sodium metabisulfite food grade in white 5-pound plastic container with screw cap
Alliance Chemical sodium metabisulfite food grade in silver 50-pound plastic bag with clear label
Alliance Chemical sodium metabisulfite food grade in four white 50-pound bags with clear labeling
Alliance Chemical sodium metabisulfite food grade in four 50-pound bags with clear labeling
Alliance Chemical sodium metabisulfite food grade in 50-pound white plastic bag with label
  • Description
  • Product Documents

Product Overview

Sodium Metabisulfite (Na₂S₂O₅), also known as Sodium Pyrosulfite, is a white crystalline powder widely used as a reducing agent and antioxidant. This Food Grade product is manufactured to meet rigorous purity standards (FCC), typically achieving a 99.5% assay. It is essential in food processing for preserving freshness and preventing enzymatic browning in fruits, vegetables, and beverages. Beyond food applications, it serves as a critical dechlorinating agent in water treatment and a reducing agent in chemical synthesis.

The material features a density of 1.48 g/mL (25°C) and is highly soluble in water, allowing for precise dosing in batch formulations. We supply this product in moisture-resistant packaging to prevent clumping and degradation, ensuring ease of handling for industrial operators and purchasing agents requiring consistent chemical specifications.

Key Properties

  • Chemical Formula: Na₂S₂O₅
  • CAS Number: 7681-57-4
  • Grade: Food Grade (FCC standards)
  • Assay: Min 98.0% (Typical 99.5%)
  • Appearance: White crystalline powder
  • Specific Gravity: 1.48 at 20°C
  • Solubility: Soluble in water
  • pH: Acidic in solution
  • Iron (Fe): Max 0.5 ppm
  • Lead (Pb): Max 0.2 ppm

Common Applications

  • Food Preservation: Inhibits enzymatic browning and oxidation in fruits, vegetables, and seafood processing.
  • Beverage Processing: Used as an antioxidant and preservative in wine making and fruit juice production.
  • Water Treatment: Functions as a dechlorinating agent to neutralize residual chlorine and reduce heavy metals in wastewater.
  • Chemical Manufacturing: Acts as a reducing agent in the purification of aldehydes and ketones.
  • Textile & Leather: Used in bleaching processes and as an antichlor.

Safety & Handling

Sodium Metabisulfite is corrosive and can release sulfur dioxide gas if in contact with acids. Store in a cool, dry, well-ventilated area away from moisture, oxidizing agents, and acids. Operators should utilize appropriate Personal Protective Equipment (PPE), including chemical-resistant gloves, safety goggles, and respiratory protection if dust is present.

Refer to the Safety Data Sheet (SDS) for detailed spill response and first aid protocols. This product is regulated for transport (UN 1759, Class 8) and must be handled in compliance with local industrial safety regulations.

Benefits

  • High Purity: Meets Food Chemicals Codex (FCC) specifications for use in consumable products.
  • Effective Oxidation Control: Prevents spoilage and color loss in sensitive materials.
  • Versatile Packaging: Available in sizes ranging from lab-scale to bulk production quantities.

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