Data:
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Items
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Standards
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Outer appearance
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white loose powder
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Viscosity
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20000～40000 mPa.s
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PH value
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2.5～3.5
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Benzene
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≤ 0.01%
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Loss on drying
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≤2.0%
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Residue on ignition (%)
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≤ 2.0%
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Heavy Metal
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≤20ppm
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Carboxylic acid (–COOH)
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56.0～68.0%
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Character : Carbomer 1342 is a high molecular weight copolymer of acrylic acid and a long chain alkyl methacrylate cross-linked with allyl ethers of pentaerythritol. Carbomer 1342, previously dried in vacuum at 80 for 1 hour, contains not less than 52.0 percent and not more than 62.0 percent of carboxylic acid (–COOH) groups.
Usage: It is mostly used in local drug delivery system, could used as thickener for cosmetics.
Application: Usually used as thickener,emulsifier. In the pharmaceutical industry, ofen used to make ointment, suppository, cream, gel, etc.
Packing: 10KG/Carton or 20KG/Carton