chlorinated paraffin


Name and Chemical formula: CnH2n+2-yCly (%Cl=50-52)



ISO 9001: 2000 ISO 14001






Chlorinated paraffins (CPs) are complex mixtures of polychlorinated n-alkanes. The chlorination degree of CPs can vary between 30 and 70 wt%. CPs are subdivided according to their carbon chain length into short chain CPs (SCCPs, C10–13), medium chain CPs (MCCPs, C14–17) and long chain CPs (LCCPs, C>17). Depending on chain length and chlorine content, CPs are colorless or yellowish liquids or solids.
Chlorinated paraffins are synthesized by reaction of chlorine gas with unbranched paraffin fractions ( 2 % isoparaffins, 100 ppm aromatics) at a temperature of 80–100 °C. The radical substitution may be promoted by UV-light.

CxH(2x+2) + y Cl2 → CxH(2x−y+2)Cly + y HCl

When the desired degree of chlorination is achieved, residues of hydrochloric acid and chlorine are blown off with nitrogen. Epoxidized vegetable oil, glycidyl ether or organophosphorous compounds may be added to the final product for improved stability at high temperatures.
Commercial products have been classified as substances of unknown or variable composition. CPs are complex mixtures of chlorinated n-alkanes containing thousands of homologues and isomers which are not completely separated by standard analytical methods.
CPs are produced in Europe, North America, Australia, Brazil, South Africa and Asia. In China, where most of the world production capacity is located, 600,000 tons of chlorinated paraffins were produced in 2007.


Product Name: chlorinated paraffin CPW 50/52

Recommend of use: Plasticizers and flame retardant additive and Solvent

CAS No: 85535-84-8

Chemical formula: CnH2n+2-yCly (%Cl=50-52)

Ingredient: % 50-52 Chlorine, Liquid CPW


1Appearance--Pale Yellow Liquid
2ColorASTM D1045Hazen125 Max
3Chlorine ContentIS-14426%50-52
4Density @270CASTM D1045gr/cm31.29+-0.1
5Thermal StabilityIS-14426%0.1 Max
6AcidityIS-14426%0.1 Max
7Viscosity @270CASTM D445cst500-1000