Classification and regulations
Chlorinated Paraffins have been classified by a number of
- The 25th Adaptation to Technical Progress to
the Dangerous Substances Directive 67/548/EC has formally
classified Short Chain Chlorinated Paraffins C10-13 as
Category 3 carcinogens (R40), and as Dangerous for the Environment
- International Maritime Goods Code (IMDG) listing
C10-13 grades as "severe marine pollutants".
Other types are not listed in IMDG so long as the CPs does not
contain more than 1 % of C10-13 products.
- In Germany C10-13 grades are
classified in KBwS Water Hazard Class 3 (serious water pollution
hazard). Long-chain 70% (solid) types are classified in WGK 1
(slight hazard). Liquid grades from C14-17 and
long-chain wax are classified WGK 2.
The Directive 91/689/EC on hazardous waste stipulates
ecotoxicity as one of the criteria according to which such wastes
are to be classified. Therefore, classification as Dangerous to the
Environment would mean that waste containing significant quantities
of C10-13 CPs will almost certainly be regarded as
"hazardous waste". At the time of writing, the percentage that
would be regarded as "significant" is still unclear, although it is
likely that the proposed "Dangerous Preparations Directive" may be
used to assess criteria for waste in addition to products.
Longer chain (C14 and above) CPs have much lower
aquatic toxicity and solubility than C10-13 types. These
longer chain products are not classified as Dangerous for the
Environment. Nevertheless, the EU has proposed the same R50/53
label as for short-chain chlorinated paraffins despite the fact
that they are less hazardous to the environment. Consequently,
waste containing these products would not be termed hazardous under
See the Directive
91/689/EC page on eur-lex.europa.eu
Currently in the USA under the Federal Resource Conservation
Recovery Act (RCRA) system, CPs are not regulated hazardous wastes.
Ecotoxicity is among the general properties on the basis of which
waste may be classified as hazardous. Therefore C10-13
CPs could be classified as hazardous in case of an amendment. The
detail of US state regulation is available on request.
Last update: 09/2011