Sodium Metabisulfite (Na2S2O5) - White Crystalline Powder Antioxidant Soluble in Water for Food and Industrial Use
Price:
Negotiable
MOQ:
500g, 1kg or 25kg for sample, 1000kg for commercial order
Delivery Time:
In 3 working days
Brand:
Zorui
Product Description
Sodium Metabisulfite CAS 7681-57-4
Sodium Metabisulfite (Na₂S₂O₅) is an inorganic compound with white or yellow crystals and a strong irritating odor. It is soluble in water, and the aqueous solution is acidic. When it comes into contact with strong acid, it releases sulfur dioxide and generates the corresponding salts.
Key Benefits
- Acts as an effective antioxidant
- Soluble in water, making it easy to use in various applications
- Used in various industrial applications
Target Industries & Applications
Food and beverage, water treatment, photography, and various chemical processes.
Technical Specifications
| Name | Sodium pyrosulfite |
| Alias | Sodium metabisulfite |
| Chemical formula | Na₂S₂O₅ |
| Molecular weight | 190.107 |
| CAS No. | 7681-57-4 |
| EINECS | 231-673-0 |
| Melting point | 150 ℃ (decomposition) |
| Water solubility | Soluble |
| Density | 1.48 g/cm³ |
| Appearance | White crystalline powder |
| Application | Antioxidant |
Product Overview
Sodium Metabisulfite (Na₂S₂O₅) is an inorganic compound widely used as a preservative, antioxidant, and reducing agent. It appears as a white crystalline powder and is highly soluble in water. Sodium Metabisulfite is commonly utilized in food processing, pharmaceuticals, and various industrial applications.
Physical and Chemical Specifications
| Common Name | Sodium Metabisulfite |
| Chemical Formula | Na₂S₂O₅ |
| CAS Number | 7681-57-4 |
| Appearance | White crystalline powder |
| Molecular Weight | 222.24 g/mol |
| Solubility | Soluble in water |
| Melting Point | Decomposes at 150 °C |
Product Functions
- Preservative: Inhibits the growth of bacteria, molds, and yeasts in food and beverages, helping to extend shelf life
- Antioxidant: Protects food products from oxidative damage, preserving color and flavor
- Reducing Agent: Used in various chemical processes to reduce other compounds and facilitate reactions
- Dechlorinating Agent: Effective in removing chlorine from water, making it suitable for wastewater treatment
Application Areas
- Food Industry: Commonly used in wine-making, dried fruits, and processed foods to maintain freshness and prevent spoilage
- Pharmaceuticals: Utilized as an antioxidant in formulations and as a stabilizer in certain medications
- Water Treatment: Employed to dechlorinate municipal and industrial wastewater
- Chemical Manufacturing: Used in various reactions and syntheses within the chemical industry
Manufacturing Process
- Synthesis: Sodium Metabisulfite is typically produced by heating a solution of sodium bisulfite to remove water and form the metabisulfite compound
- Purification: The resulting product undergoes purification processes to achieve the desired concentration and quality
- Quality Control: Each batch is rigorously tested for purity, solubility, and compliance with industry standards
Why Choose Us?
- High Quality: Our Sodium Metabisulfite is sourced from reputable manufacturers and produced under stringent quality control measures
- Versatile Applications: Suitable for various industries including food, pharmaceuticals, water treatment, and chemical manufacturing
- Expert Support: Our knowledgeable team provides technical assistance and formulation guidance tailored to your specific needs
- Sustainability Commitment: Focused on environmentally responsible sourcing and manufacturing practices
Frequently Asked Questions
Q1: What is Sodium Metabisulfite?
A1: Sodium Metabisulfite is an inorganic compound used primarily as a preservative, antioxidant, and reducing agent.
Q2: What are the benefits of using Sodium Metabisulfite?
A2: It effectively preserves food, protects against oxidation, acts as a reducing agent, and removes chlorine from water.
Q3: Where is Sodium Metabisulfite commonly used?
A3: Common applications include the food industry, pharmaceuticals, water treatment, and chemical manufacturing.
Q4: Is Sodium Metabisulfite safe for use in food applications?
A4: Yes, it is considered safe when used according to regulatory guidelines, although some individuals may have sensitivities.
Q5: What are the recommended storage conditions for Sodium Metabisulfite?
A5: Store in a cool, dry place, away from moisture and incompatible materials to maintain product quality.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shanxi Zorui Biotechnology Co., Ltd.
Location
Huiquan Square F14, No.1450 SH Caohejing Hi-Tech Park, Datong, Shanxi, China
Contact Person
Julie