What is Sodium Meta Bi Sulphite (SMBS)?
Sodium Meta Bi Sulphite (SMBS) is a white or off-white crystalline powder with a pungent sulfur-like odor. Chemically represented as Na₂S₂O₅, it is commonly used as a preservative, antioxidant, disinfectant, and bleaching agent across industries like food processing, pharmaceuticals, textiles, paper, and water treatment.
It releases sulfur dioxide (SO₂) when dissolved in water, which inhibits microbial growth and prevents spoilage, making it valuable in both food and industrial applications.
Key Features & Benefits:
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✅ Strong antimicrobial and antioxidant properties
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✅ Effective preservative for food, beverages & pharmaceuticals
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✅ Disinfectant and oxygen scavenger in water treatment
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✅ Bleaching agent in paper and textile processing
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✅ Versatile use across industries
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✅ Cost-effective and highly stable
Applications of SMBS (Sodium Meta Bi Sulphite):
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Food Industry (Food Grade SMBS)
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Used as a preservative in dried fruits, juices, pickles, and wines
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Prevents enzymatic browning and microbial spoilage
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Controls oxidation and extends shelf life
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Water Treatment
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Removes chlorine and dissolved oxygen from process water
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Used as a disinfectant in wastewater and reverse osmosis systems
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Textile & Paper Industry
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Acts as a bleaching and dechlorination agent
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Helps in brightening fabrics and stabilizing dyes
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Photography & Pharmaceuticals
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Used in developer solutions and as a stabilizing agent in certain medicines
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Cleaning & Industrial Use
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Added in boiler water systems, leather tanning, and chemical manufacturing
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Controls corrosion and microbial growth
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Why Buy SMBS from Mannat Enterprises?
We offer high-purity Sodium Meta Bi Sulphite (98%+) suitable for industrial and food-grade applications, available in bulk packaging. Our SMBS is moisture-controlled, contamination-free, and competitively priced — delivered promptly across India.
Specifications:
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Appearance: White crystalline powder
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Assay: Min. 98% Na₂S₂O₅
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pH (1% solution): 4.0 – 5.0
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Solubility: Soluble in water
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Odor: Pungent sulfur dioxide smell
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Shelf Life: 12–24 months (airtight packaging in dry storage)
❓ Frequently Asked Questions (FAQs)
Q1. Can SMBS be used in food products?
✅ Yes, food-grade SMBS is permitted in small quantities as a preservative under FSSAI and FDA guidelines. Always check grade and dosage before use.
Q2. What is the difference between SMBS and Sodium Bisulfite?
Sodium Meta Bi Sulphite is more concentrated and releases more sulfur dioxide, making it more effective in some preservation and industrial applications.
Q3. How does it work in water treatment?
SMBS neutralizes residual chlorine and scavenges oxygen, preventing corrosion and contamination in industrial water systems.
Q4. Is it safe for cosmetic use?
SMBS is not commonly used in cosmetics due to its odor and reactivity. Use only if permitted in limited quantities under formulation guidelines.
⚠️ Disclaimer:
This product is intended for industrial and permitted food applications only. Always verify grade suitability and follow regulatory guidelines. Avoid direct inhalation or contact with eyes and perform compatibility testing before use.
