Sodium Carboxymethyl Cellulose (CMC) – Food & Industrial Grade Water-Soluble Thickener

Grades Available:

• Food Grade (Viscosity 250–400 cps & 2500–4000 cps)

• Paint/Industrial Grade (Viscosity 2000–3000 cps)
  Forms: White to yellowish fine powder | Packaging: 25 kg/bag | Shelf Life: 24 months

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1. Introduction

Sodium Carboxymethyl Cellulose (CMC) is a versatile, water-soluble polymer derived from cellulose. Used across food, pharmaceutical, cosmetic, and industrial formulations, it acts as a thickener, binder, stabilizer, emulsifier, and film-forming agent.

Chibio Biotech offers CMC with precisely controlled viscosity and substitution levels, tailored for high-performance in both food and paint applications.

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2. Chemical Information

• CAS Number: 9004-32-4

• Molecular Formula: [C6H7O2(OH)x(OCH2COONa)y]n

• Degree of Substitution: 0.7–0.9 (Food Grade), up to 1.5 (Paint Grade)

• Solubility:
  ✔ Soluble in cold or hot water
  ✖ Insoluble in organic solvents

• Appearance: White to yellowish powder

• Taste & Odor: Neutral

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3. Technical Specifications Summary  ​​​

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4. Key Functional Properties

✅ Excellent water solubility and thickening capacity
✅ Thermal and pH stability in processing environments
✅ Film-forming and binding properties ideal for coatings and capsules
✅ Suspension and emulsification in drinks, sauces, paints, and creams
✅ Low toxicity and safe for ingestion (food grade)

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5. Applications & Recommended Dosage

🍲 Food Industry

• Applications: Ice cream, jam, noodles, condiments, sauces, beverages

• Function: Thickening, moisture retention, emulsifying

• Dosage: 0.1% – 1.5% depending on formulation viscosity required

🧴 Cosmetics & Personal Care

• Applications: Gels, creams, masks

• Function: Film forming, texture enhancer

• Dosage: 0.5% – 2.0%

🎨 Paints & Coatings (Industrial Grade)

• Applications: Water-based paints, ceramic slurries, wall putty

• Function: Rheology control, anti-sagging, adhesion improvement

• Dosage: 0.3% – 1.0%

💊 Pharmaceuticals

• Applications: Tablet binding, oral suspensions

• Function: Disintegrant, thickener

• Dosage: 0.2% – 1.0%

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✅ Application Summary Table

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6. Production Flowchart of Sodium Carboxymethyl Cellulose (CMC)

1. Natural Cellulose Selection
   ⮕ Source: Wood pulp or cotton linter (high-purity cellulose base)

2. Alkalization (Activation)
   ⮕ Treated with sodium hydroxide (NaOH)
   ⮕ Swelling of cellulose to allow etherification

3. Etherification (Carboxymethylation)
   ⮕ Addition of monochloroacetic acid (MCA) or sodium monochloroacetate
   ⮕ Produces Sodium Carboxymethyl groups on cellulose backbone

4. Neutralization & Washing
   ⮕ Neutralize excess alkali and byproducts
   ⮕ Multiple washes to remove salts and residues

5. Drying
   ⮕ Moisture reduction to target levels (≤10%)

6. Milling & Sieving
   ⮕ Powdered and standardized (e.g., 60–100 mesh)
   ⮕ Adjusted based on target viscosity grade

7. Quality Testing (CCP)
   ⮕ Check for viscosity, degree of substitution, pH, purity, heavy metals, and microbial levels

8. Blending & Packaging
   ⮕ Custom batch blending (if needed)
   ⮕ Packed in 25 kg food-grade or industrial-grade PE-lined bags

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✅ Key Control Points (CCP):

• Etherification reaction pH & temperature

• Degree of substitution (0.7–0.9 for food; up to 1.5 for industrial)

• Viscosity testing in 1% or 2% aqueous solution (25°C)

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7. Why Choose Chibio Biotech’s CMC?

✔ Dual Grades for Food & Industrial Use
✔ Custom Viscosity Options Available (250–4000 cps)
✔ High Purity (≥99.5%) with Low Moisture
✔ Globally Compliant – Safe Heavy Metal & Microbiological Levels
✔ Flexible MOQ, Technical Guidance & Consistent Supply

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8. Why Use CMC in Your Business?

🔍 Versatile Ingredient – One material serves multiple functions across industries
💡 Improves Product Performance – Enhances texture, consistency, shelf-life
🌱 Safe & Biodegradable – Non-toxic, plant-derived polymer
🛠 Cost-Efficient – Minimal dosage delivers high functionality
📈 Used in 10,000+ formulations worldwide – Trusted in food, pharma, and coating markets

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📩 Contact Us to Request Samples or Technical Consultation

Want to enhance texture, stability, or flow in your formulation?

📧 Email: sales@chibiotech.com
📞 Phone: +86 532 66983270
🌐 Website: www.chibiotech.com
✅ Chibio Biotech – Supplying High-Quality Sodium CMC for Global Formulations