32001-55-1

Appearance：clear pale yellow to light brown liquid

Density：1.1 g/mL at 20 °C(lit.)

Boiling Point：115.3ºC at 760 mmHg

Melting Point：-41.6ºC

Flash Point：20ºC

Carbopol 940, also known as Carboxypolymethylene, is a white powdered polymer developed by B.F. Goodrich Company and is identified CAS No. 32001-55-1. Carbopol 940 is a lightly cross-linked polyacrylic acid copolymer, used for its thickening, suspending and stabilizing properties in a wide range of formulations. This product is capable of providing efficient suspension and stability in pH ranges from 5.5 to 11.

Carbopol 940 is widely used in various industries, such as pharmaceutical, cosmetic, personal care, food, latex, printing and dyeing, coatings and several other applications. As a thickening and suspending agent, Carbopol 940 is added in concentrations as low as 0.1% to aqueous solutions and can find use in toothpaste, liquid soaps, shampoos, creams, lotions, emulsified ointment and many other products. This polymer has the following properties: it is highly resistant to hydrolysis and enzymatic attack and is non-toxic and non-hypersensitizing.

In addition, Carbopol 940 is a highly efficient plasticizing agent in water-soluble systems, and is used in formulations requiring thickening and stability in pH ranges from 5.5 to 11. It has excellent solubility in ethers, ethylene glycol, aspirin, esters, vegetable oils, fatty acids, and other organic solvents. At pH values above 5.5, it slowly forms viscosity which may slowly build up to a maximum. As a suspending agent, Carbopol 940 provides thickening and suspension of particulates in solution.

Carbopol 940 complies with the current US and European Pharmacopoeia standards, and is one of the closely monitored and controlled materials produced in accordance with Good Manufacturing Practice (GMP). It is also certified in accordance with ISO 9001 and RoHS standards.