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What Are CPs?

Chlorinated Paraffins (CPs) are straight-chain hydrocarbons that have been chlorinated. Chlorinated paraffins are classified according to their carbon-chain length and percentage of chlorination, with carbon-chain lengths generally ranging from C10 to C30 and chlorination from approximately 35% to greater than 70% by weight. Chlorinated paraffins are made by chlorinating paraffin fractions obtained from petroleum distillation. The three most common commercial feedstocks used are paraffins with carbon number ranges of: Short-chain (C10-13), Intermediate-chain (C14-17) and
Long-chain (C18-30).

Percent of Chlorination (by weight)
  <40 40-49 50-59 60-69 >70
C10-13 A1 A2 A3 A4 A5
C14-17 B1 B2 B3 B4 B5
C18-30 C1 C2 C3 C4 C5

These hydrocarbons are reacted with chlorine resulting in chlorinated paraffins of different carbon chain lengths with varying degrees of chlorination. Thus chlorinated paraffins are a group of complex chemical substances. The general formula of CP is CxH(2x-y+2)Cly. The majority of CP products can be depicted in a 15-cell matrix, as shown above.

Last Reviewed - February 15, 2012

Chlorinated Paraffins Industry Association
1250 Connecticut Ave., NW
Suite 700
Washington, DC 20036
Phone: 202-419-1500