Polymers & Resins Available — Bulk Only

Carbomer (Carbomer 940)

Carbomer
CAS 9007-20-9 · Formula (C3H4O2)n

A crosslinked polyacrylic-acid thickener that gels and stabilizes formulations at fractional-percent loadings. It is used as a rheology modifier, thickener, gelling agent, and emulsion/suspension stabilizer, effective at low loadings to build viscosity and form clear gels.

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HS Code
3906.90
At a Glance
Material Family
Polymers & Resins
Record Type
Pure compound
Primary Role
Surfactancy · Viscosity Modification
Solubility
Disperses and swells in water; soluble after neutralization (typical)
Functional Roles
CARBOMER
EMULSION STABILISINGGEL FORMINGVISCOSITY CONTROLLING
Industries Served
Applications & Use Cases
  • Thickener: Builds viscosity at low concentrations.
  • Gelling agent: Forms clear aqueous and hydro-alcoholic gels.
  • Emulsion stabilizer: Stabilizes emulsions and prevents separation.
  • Suspending agent: Suspends solids in liquids.
Physical Properties
Appearance
White fluffy hygroscopic powder (typical)
Odor
Slight characteristic acrylic odor (typical)
Physical State
Solid powder
Bulk Density
approx. 0.2 g/cm3 (typical)
pH (0.5% Dispersion)
2.5 - 3.5 (typical, before neutralization)
pH for Max Viscosity
6.0 - 11.0 (after neutralization, typical)
Moisture Content
<= 2% (typical)
Solubility
Disperses and swells in water; soluble after neutralization (typical)
Loss on Drying
<= 2.0% (typical)
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.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
3906 . 90
Chapter 39
Plastics and articles thereof
Heading 39.06
Internationally harmonized (WCO HS)
Subheading 3906.90
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
9007-20-9
Molecular Formula
(C3H4O2)n
INCI Name
CARBOMER
Synonyms & Trade Names
Carbomer 940 Carbomer 980 Crosslinked polyacrylic acid Polyacrylic acid (crosslinked) Carboxypolymethylene Carboxyvinyl polymer Acrylic acid polymer, crosslinked Comparable to Carbopol
Full Description

Carbomer (CAS 9007-20-9) is a high-molecular-weight crosslinked polymer of acrylic acid supplied as a fine powder. It is used as a rheology modifier, thickener, gelling agent, and emulsion/suspension stabilizer, effective at low loadings to build viscosity and form clear gels.

Frequently Asked Questions

What is Carbomer 940 used for?

Carbomer 940 (CAS 9007-20-9) is used as a rheology modifier, thickener, and gelling agent that forms clear aqueous and hydro-alcoholic gels at low loadings, and as an emulsion and suspension stabilizer. RawSource supplies it in bulk to formulators.

What is another name for Carbomer 940?

Carbomer 940 is a grade designation for a high-molecular-weight crosslinked polymer of acrylic acid; it is referred to by the INCI name carbomer and as a polyacrylic acid thickener. Specific grade equivalence is confirmed on the supplied documentation.

How do you use Carbomer 940?

The powder is dispersed in water and neutralized with a base to develop viscosity and form a clear gel; it is effective at low concentrations. Dispersion method, neutralizer, and use level depend on the formulation; see the technical data sheet.

Is Carbomer 940 plastic?

Carbomer 940 is a synthetic crosslinked polymer of acrylic acid. Whether it falls under a given microplastic or polymer definition varies by jurisdiction and is not a property RawSource certifies; refer to the SDS and current regulatory references.

What is the cost of bulk Carbomer 940?

Bulk pricing depends on grade, packaging, and order volume. RawSource quotes industrial quantities; request a bulk quote with your target volume for current 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.