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Product Description
CAS 9007-20-9 Carbopol 940,also called Carbomer or Carboxypoly-methylene is a generic name for synthetic high molecular weight polymers of acrylic acid used as thickening, dispersing, suspending and emulsifying agents in pharmaceuticals and cosmetics. They may be homopolymers of acrylic acid, crosslinked with an allyl ether pentaerythritol, allyl ether of sucrose or allyl ether of propylene.
CAS 9007-20-9 Carbomers are found in the market as white and fluffy powders. They have the ability to absorb, retain water and swell to many times their original volume. Carbomers codes (910, 934, 940, 941 and 934P) are an indication of molecular weight and the specific components of the polymer .
| Items |
Specifications |
| Apperance |
Fluffy white powder |
| Odor |
Slight odor |
| Viscosity (0.2 wt% mucilage, 20 rpm, 25ºC), mPa·s |
13000~30000 |
| Viscosity (0.5 wt% mucilage, 20 rpm, 25ºC), mPa·s |
40000~60000 |
| Clarity (0.2 wt% mucilage, 420 nm), % Transmission |
≥85 |
| Clarity (0.5 wt% mucilage, 420 nm), % Transmission |
≥85 |
| Heavy Metals (as Hg), mg/kg |
≤1.0 |
| Heavy Metals (as As), mg/kg |
≤2.0 |
| Heavy Metals (as Cd), mg/kg |
≤5.0 |
| Heavy Metals (as Pb), mg/kg |
≤10.0 |
| Bulk Density, g/100mL |
19.5-23.5 |
| Loss on Drying, % |
≤2.0 |
Functions :
1. Excellent thickening effects even at low resin concentration in water and alcohol.
2.Thixotropy and high yield value in neutralized solution.
3.No stringy in solution, even at high viscosity.
4.High transparency in neutralized solution.
5.Excellent thickening effects over a wide pH range (pH 5 - 11)
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