Carbomer 940

Appearance

White, Fluffy powder

Solubility

When neutralized with alkali hydroxide or amine it dissolves in water, alcohol and gylcerin

Odor

Slightly Acidic

Loss on drying

Not more than 2.0 % w/w

Ph (1% soln. in water) 

Between 2.50 to 3.50

Sulfated Ash

Not more than 4.0%

Viscosity (0.5 % w/v in water, spindle no 7, 20 RPM at 25 degree C)

Not less than 40,000 cps and not more than 77,000 cPs

Limit of Benzene

Not more than 0.5%

Assay (Titrimetry)

Not less than 56.0% and Not more than 68.0 % w/w of free carboxylic acid group

Free Acrylic Acid Content

Not less than 0.25 % w/w