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Certificate of Analysis - Carbomer 940

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Update time : 2022-11-08 17:09:38
 
Trade Name Carbomer 940 Batch No. GW20221020A
INCI Name Carbomer Manu. Date Oct20, 2022
Testing Standards In-house Standards Expiry Date Oct. 19, 2024
 
Item of Analysis Specification Results
Appearance Incompact white powder Conform
Viscosity of 0.2% water solution (20r/min, 25℃, mPa•S) 19,000~30,000 22,000
Viscosity of 0.5% water solution (20r/min, 25℃, mPa•S) 40,000~55,000 50,000
Transmittance of 0.2% water solution(420nm, %) ≧95 97.3
Transmittance of 0.5% water solution(420nm, %) ≧95  
98.1
Residual Benzene(%) ≦0.50 0.40
Residual Acrylic Acid(%) ≦0.25 0.21
Loss on drying(%) ≦2.0 Conform
Packing density(g/100ml) 21.0~27.0 Conform
Pb+As+Hg+Sb(ppm) ≦10 Conform
Conclusion Conforms  


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