Product Description

Sodium Metabisulfite is a white crystalline powder widely used as a preservative, antioxidant, and bleaching agent in food, beverage, pharmaceutical, and industrial applications.

It provides effective protection against oxidation, microbial growth, and discoloration, ensuring product stability and quality in diverse processes.

Chemical & Physical Properties

Chemical Name: Sodium Metabisulfite
CAS Number: 7681-57-4
Molecular Formula: Na₂S₂O₅
Appearance: White to pale yellow crystalline powder
Odor: Sulfur-like odor
Solubility: Soluble in water
pH (1% solution): 4.0–5.0
Density: 1.48 g/cm³
Shelf Life: 24 months under recommended storage conditions

Typical Specifications

• ✓ Assay (as Na₂S₂O₅): ≥ 98%

• ✓ Moisture: ≤ 0.5%

• ✓ pH (1% solution): 4.0–5.0

• ✓ Appearance: White to pale yellow crystalline powder

• ✓ Water Insolubles: ≤ 0.1%

Applications

• ✓ Food & beverage: preservative, antioxidant, color stabilizer

• ✓ Pharmaceutical: antioxidant and excipient in formulations

• ✓ Industrial: bleaching agent for pulp, paper, and textile processing

• ✓ Water treatment: dechlorination and sulfite dosing

Features & Benefits

• ✅ High purity for consistent performance

• ✅ Effective antioxidant and preservative

• ✅ Compatible with various food, pharmaceutical, and industrial formulations

• ✅ Reduces microbial growth and oxidation

• ✅ Stable and easy to handle, minimizing dust and loss

• ✅ Bulk supply available for industrial and commercial applications

• ✅ Supports automated processing and continuous production lines

Packaging & Storage

• ✅ Packaging: 25 kg bags, 500 kg jumbo bags, or customized packaging

• ✅ Storage: Store in a cool, dry, and ventilated area, away from moisture, acids, and oxidizing agents. Keep containers tightly sealed

Regulatory Status

• ✅ Food grade and industrial grade available

• ✅ Complies with FDA, EFSA, and other international standards

• ✅ Non-toxic when used according to regulatory limits

✉️ Email: jane@khonorchem.com
📞 Tel / WhatsApp / WeChat: 86-19851890163
🌍 WhatsApp: https://wa.me/8619851890163

COA OF SMBS - food.pdf