High Quality Carboxymethyl Cellulose

High Quality Carboxymethyl Cellulose

Carboxymethyl Cellulose Sodium (CMC) is an anionic cellulose ether, a water-soluble polymer compound made from natural cellulose through alkalization and etherification reactions. Its international code is E466, and it is one of the most widely used cellulose derivatives.
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Description
characteristic

 

Solubility: Soluble in cold water or hot water, the solution is transparent and viscous

01

Stability: Maintains stable performance within the pH range of 2-12

02

Safety: non-toxic, odorless, food grade standard

03

Functionality:

Thickening property (1% solution viscosity can reach 10-50,000 mPa·s)

Water retention (water absorption rate can reach 20 times its own weight)

Film-forming property (can form a transparent and flexible film)

04

 

Core production technology
 

 

Alkalinization reaction

Temperature: 25-35℃

Reaction formula:
Cell-OH + NaOH → Cell-ONa + H₂O

Etherification reaction

Temperature: 50-70℃

Reaction formula:
Cell-ONa + ClCH₂COOH → Cell-O-CH₂COONa + NaCl

Refining process

Neutralization (adjust pH to 6.5-8.5 with hydrochloric acid)

Washing (remove by-product sodium chloride)

Drying (spray drying or fluidized bed drying)

Application Areas

 

Food industry
Ice cream: inhibit ice crystal formation (addition amount 0.3-0.5%)

Tablets: Controllable disintegration time (5-30 minutes)

Toothpaste: Give paste conformability (dosage 0.8-1.2%)

Shampoo: Thickening system (synergistic with salt)

Papermaking industry:

Surface sizing agent (increases paper tensile strength by 20-30%)

Medical dressings: hydrogel drug delivery systems

Precautions
 

 

Dissolution method:

It is recommended to premix with dry powder such as sugar

Water temperature should not exceed 60℃ (to prevent agglomeration)

Incompatibility taboos:

Avoid direct contact with strong oxidants and high-valent metal ions

Storage conditions:

Cool and dry place (relative humidity ≤ 65%)

 

product-800-800

 

 

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