Specialty Additives Available — Bulk Only

Carboxymethyl Cellulose (CMC, Cellulose Gum)

CMC
CAS 9004-32-4 · Formula C8H16NaO8 · MW 263.20 g/mol

A water-soluble cellulose ether delivering thickening, water retention, and suspension across food and industrial systems. It is used as a thickener, stabilizer, and emulsifier; in drilling muds, detergents, paints, adhesives, printing inks, and textile sizes; and as a protective colloid and viscosity modifier.

Safety Data Sheet
HS Code
3912.31
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Primary Role
Surfactancy · Film Formation
Functional Roles
CELLULOSE GUM
BINDINGEMULSION STABILISINGFILM FORMINGFRAGRANCEVISCOSITY CONTROLLING
Applications & Use Cases
  • Thickener/stabilizer: Viscosity control and stabilization in foods and cosmetics.
  • Drilling fluids: Viscosifier in drilling muds.
  • Detergents: Anti-redeposition additive in detergents.
  • Coatings/adhesives: Used in paints, adhesives, and printing inks.
  • Textile sizing: Sizing agent for textiles.
Physical Properties
Solubility
Yields a viscous colloidal solution with water. Insoluble in ethanol
pH
Not < 5,0 and not more than 8,5 (1 % colloidal solution)
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
3912 . 31
Chapter 39
Plastics and articles thereof
Heading 39.12
Internationally harmonized (WCO HS)
Subheading 3912.31
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
9004-32-4
Molecular Formula
C8H16NaO8
Molecular Weight
263.20 g/mol
INCI Name
CELLULOSE GUM
PubChem CID
InChI Key
DPXJVFZANSGRMM-UHFFFAOYSA-N
Synonyms & Trade Names
Carboxymethylcellulose sodium salt Carboxymethylcellulose sodium Carmellose sodium Carmethose Cellofas Cellufresh Cellugel Celluvisc Collowel Ethoxose Cellpro Lovosa Sarcell tel Cellofas B Cellofas C Cellogel C Cellogen PR Glikocel TA CMC sodium salt
Full Description

Carboxymethyl Cellulose (CAS 9004-32-4) is the sodium salt of a carboxymethyl ether of cellulose. It is used as a thickener, stabilizer, and emulsifier; in drilling muds, detergents, paints, adhesives, printing inks, and textile sizes; and as a protective colloid and viscosity modifier.

Frequently Asked Questions

What is carboxymethyl cellulose used for?

Carboxymethyl cellulose (CMC, CAS 9004-32-4) is used industrially as a thickener, stabilizer, and emulsifier. Common applications include drilling muds as a viscosifier, anti-redeposition additive in detergents, and viscosity control in paints, adhesives, printing inks, and textile sizes. It also serves as a protective colloid and viscosity modifier.

What is carboxymethyl cellulose made from?

CMC is the sodium salt of a carboxymethyl ether of cellulose. It is produced by reacting cellulose with sodium hydroxide and chloroacetic acid (or its sodium salt), which substitutes carboxymethyl groups onto the cellulose backbone. The HS classification is 3912.31 (carboxymethylcellulose and its salts).

Is carboxymethyl cellulose water soluble?

Yes. CMC disperses and dissolves in water to form viscous solutions, which is the basis for its use as a thickener and protective colloid. Solution viscosity depends on grade, degree of substitution, and molecular weight; specify your target viscosity when requesting a quote.

What grades and viscosities of CMC are available in bulk?

CMC is supplied across a range of viscosity and substitution grades selected by application (drilling, detergent, coatings, textile). Grade-specific specifications and a Certificate of Analysis are provided per lot. Contact us with your target viscosity and end use for a bulk quote on drums or supersacks.

What is the cost of bulk carboxymethyl cellulose?

Bulk CMC pricing depends on grade, viscosity, order volume, and packaging. We supply industrial quantities in drums, bags, and supersacks; request a current bulk quote with your required grade and volume for accurate pricing.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.