Sodium Carboxymethyl Cellulose (CMC-Na)

Sodium Carboxymethyl Cellulose (CMC-Na) is a water-soluble cellulose derivative obtained by substituting the hydroxyl groups of cellulose with carboxymethyl groups. It is widely used as a thickener, stabilizer, binder, and film-forming agent across various industries, including pharmaceuticals, food, cosmetics, and textiles. Healthmove is a Sodium Carboxymethyl Cellulose powder supplier and you can get the price here.

Data Sheet

General Information
Product Name	Sodium Carboxymethyl Cellulose (CMC-Na)
HS Code	39123100
CAS Number	9004-32-4
Standard	CP、USP、BP、EP
Packing Specification	25kg/ drum、25kg/ bag
Storage Condition	Room temperature, Sealed
Product Character	White or yellowish fibrous or granular powder, odorless, moisture-inducing. Swelling in water into a gelatinous solution. Insoluble in ethanol, ether or trichloromethane.

Grades of CMC-Na
Pharmaceutical Grade	Highly purified and compliant with pharmacopeial standards (e.g., USP, BP, EP).
Food Grade	Meets FDA and Codex Alimentarius requirements.
Industrial Grade	Suitable for non-food applications with broader specifications.

Physicochemical Property
Density	1.6±0.1g/cm3
Molecular Formula	C6H7O2(OH)2CH2COONa
Refractive Index	1.51
Boiling Point	N/A
Vapor Pressure	N/A
Molecular Weight	160.255
Fusing Point	274℃
Flash Point	N/A
Particle Size	Fine powders to coarse granules depending on the grade.
Viscosity	Available in low, medium, and high viscosity grades (measured in 1%–2% aqueous solutions at 25°C).
pH Range	Typically effective between pH 6 and 9.

Comparison with Other Cellulose Derivatives
Property	CMC-Na	HPMC	MCC
Solubility	Soluble in water	Soluble in water	Insoluble, swells in water
Film Formation	Forms flexible films	Forms strong films	Does not form films
Viscosity Modification	High	Moderate	Low
Stability in pH Range	Effective at pH 6–9	Effective at pH 3–11	Stable in all pH ranges

Features

• Non-Toxic and Biocompatible: Safe for use in pharmaceutical, food, and personal care products.
• Excellent Water Solubility: Easy to dissolve and process in aqueous systems.
• Versatile Functionalities: Acts as a thickener, binder, stabilizer, and film-former.
• Stability: Chemically stable over a broad pH range and resistant to microbial degradation.

Applications

Pharmaceutical Industry

• Suspending Agent: Stabilizes suspensions and prevents sedimentation in liquid formulations.
• Binder: Improves tablet hardness and cohesion in solid dosage forms.
• Controlled-Release Systems: Used in hydrophilic matrix tablets for sustained drug release.
• Viscosity Modifier: Adjusts the viscosity of oral, topical, and ophthalmic formulations.

Food Industry

• Thickener and Stabilizer: Used in sauces, dressings, and ice creams for texture improvement.
• Dietary Fiber: Acts as a source of soluble fiber in functional foods and supplements.

Cosmetics and Personal Care

• Thickening Agent: Used in creams, lotions, shampoos, and toothpaste for viscosity enhancement.
• Film Former: Forms protective films on hair and skin.

Industrial Applications

• Textiles: Functions as a sizing agent for warp yarns.
• Oil Drilling: Acts as a rheology modifier and fluid-loss control agent in drilling muds.
• Paper: Improves surface properties and printability.