Superior Carboxymethyl Cellulose

Superior Carboxymethyl Cellulose

Carboxymethyl Cellulose (CMC), also known as sodium carboxymethyl cellulose (Na-CMC), is a water-soluble cellulose ether derivative. It is made from natural cellulose (such as cotton linters, wood pulp, etc.) through alkalization and etherification reactions. The introduction of carboxymethyl (-CH2-COOH) groups into the molecular chain gives it excellent thickening, suspension, emulsification, film-forming and water-retaining properties.
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Description
 
 
product key technologies
product-800-800
01.

Basic parameters

Chemical name: Sodium carboxymethyl cellulose

CAS number: 9004-32-4

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

Appearance: White to milky white powder

Solubility: Completely soluble in cold or hot water

Bulk density: 0.5-0.7g/cm³

02.

Physical and chemical indicators:
Indicator name Specification range Test method
Degree of substitution (DS) 0.4-1.5 (customizable) GB/T 5009.88
Viscosity (2% solution) 10-20000mPa·s GB/T 1904
pH value (1% solution) 6.0-8.5 GB/T 9724
Loss on drying ≤10.0% GB/T 6284
Chloride ≤1.0% GB/T 3050

 

 

Production process
 

Raw material standards
Use high-purity cellulose raw materials:
• α-cellulose content ≥ 95%
• Degree of polymerization 400-1000
• Ash content ≤ 0.2%

Production process
Adopt continuous production process:
Alkalization → etherification → neutralization → purification → drying → crushing → packaging

Key control points:
• Alkalinization temperature: 25±2℃
• Etherification time: 3.5±0.5h
• Reaction conversion rate ≥92%
• Product yield ≥85%

 

Industry Solutions

Choose the plan that suits you best.

Food industry
(1) Dairy product processing

Yogurt/fermented milk: 0.15-0.3% added, effectively improves product texture and prevents whey precipitation

Ice cream: 0.3-0.5% added can increase expansion rate and improve resistance to melting

Cheese products: as an emulsifier stabilizer, 0.2-0.4% added

01

Medical and health field
(1) Pharmaceutical preparations

Tablets: 2-8% as high-quality adhesives

Sustained-release preparations: 10-25% skeleton materials

Ointments: 3-5% matrix materials

Eye drops: 0.5-1.5% thickeners

02

Application in the petroleum industry
(1) Drilling fluid

Freshwater drilling fluid: 0.2-0.5% viscosity enhancer

Brine drilling fluid: 0.3-0.8% fluid loss reducer

Completion fluid: important additive

03

Daily chemical industry applications
(1) Detergents

Laundry detergent: 0.5-1.2% anti-redeposition agent

Dishwashing liquid: 0.3-0.8% thickener

Softener: 0.2-0.5% conditioner

04

Packaging options
◇ 20kg moisture-proof composite bag
◇ 500kg food-grade container bag
◇ Customized packaging available upon request

product-800-800

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