Description

Carbomer 940 is a high molecular weight, cross-linked polyacrylic acid polymer widely recognized for its exceptional thickening, suspending, and stabilizing properties in aqueous systems. Its primary value lies in its ability to produce crystal-clear, high-viscosity gels at low concentrations, making it indispensable for formulations requiring superior clarity and texture. This rheology modifier is essential for manufacturers in the cosmetics, personal care, pharmaceutical, and household products industries seeking to create stable, elegant, and high-performance end products.

Application

• Cosmetic & Personal Care Gels: Primary gelling agent for transparent and brilliant facial gels, hair styling gels, and after-sun care products.
• Topical Pharmaceutical Preparations: Used as a suspending and gelling agent in medicated gels, creams, and ophthalmic formulations requiring high clarity.
• Household & Industrial Products: Thickener for cleaning gels, air freshener gels, and other specialty chemical formulations where transparency is desired.
• Toiletries: Key ingredient in toothpastes, shaving gels, and other rinse-off products that benefit from its non-tacky, smooth feel.
• Lubricant Gels: Employed in the formulation of water-based personal lubricants and ultrasound transmission gels.

Basic Information

Item	Details
Product Name	Carbomer 940
CAS No.	76050-42-5
Molecular Formula	(C3H4O2)n
Molecular Weight	~1,000,000 - 4,000,000 (Typical average)
Synonyms	Carbopol 940; Poly(acrylic acid), cross-linked; Acrylic acid polymer; Carboxy vinyl polymer; Carboxypolymethylene; 2-Propenoic acid, homopolymer; Carbomer Homopolymer Type C; NF Carbomer
EINECS	278-463-6

Quality Control

Our Carbomer 940 is manufactured and tested to meet stringent quality standards, including relevant monographs for pharmaceutical and cosmetic use. Each batch is supported by a comprehensive Certificate of Analysis (COA) detailing key parameters such as viscosity, pH, and residue on ignition. We ensure compliance with standards such as USP-NF, EP, and JPE, and our quality management system adheres to cGMP principles to guarantee batch-to-batch consistency and reliability for your critical formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after each use to prevent moisture absorption, which can affect its performance.

Specification

Item	Specification
Appearance	White, fluffy powder
Identification (IR)	Conforms
Viscosity (0.5% aq. dispersion)	40,000 - 60,000 mPa·s (Typical)
pH (1% aq. dispersion)	2.5 - 3.5
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.