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EC number: 201-052-9
CAS number: 77-73-6
The density of DCPD has been reported in 3
references with good general agreement. The density of high purity DCPD
is 0.9302 g/cm3 at 35°C whereas the density of commercial
DCPD Is 0.975 - 0.989 g/cm3 at 20°C. The relative density
value taken for the Key Value for Chemical Safety Assessment is 0.98 at
The CRC handbook is peer reviewed and is
considered reliable and a suitable key study for this endpoint (Lide
2008). As a supporting study, WHO ICSC (2005) have identified the
density of the test substance is 0.98 g/cm3. No information on the
primary source of the data or the methods used is available. However,
this information is taken from a reliable peer reviewed handbook and so
can be considered reliable and suitable for use for this endpoint.
The density of commercial DCPD (94%) was
taken from proprietary data (Shell 2016). The study is not GLP compliant
but followed guideline ASTM D4052 and is considered suitable for use for
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