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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2005
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP not known information from published handbook data limitations in design and/or reporting but otherwse adequate for assessment
Principles of method if other than guideline:
The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The NIOSH Pocket Guide to Chemical Hazards is intended as a source of general industrial hygiene information for workers, employers, and occupational health professionals. The Pocket Guide presents key information and data from the US Department of Health and Human Services and as such is a reliable governmental source of information.
GLP compliance:
not specified
Remarks:
No data reported
Type of method:
other: not reported
Specific details on test material used for the study:
N/A
Key result
Temp.:
20 °C
Vapour pressure:
1.4 mm Hg

N/A

Conclusions:
NIOSH handbook cites vapour pressure for DCPD as being 1.4 mmHg at 20 °C.
Executive summary:

No information on the primary source of this data or the methods used is available. However, this information is taken from a reliable government source and is therefore considered to be suitable for use as a key study.

Description of key information

The vapour pressure of DCPD is 1.4 mmHg at 20°C ( 186.651 Pa).

Key value for chemical safety assessment

Vapour pressure:
186.651 Pa
at the temperature of:
20 °C

Additional information

The Pocket Guide presents key information and data from the US Department of Health and Human Services and, as such, is a reliable governmental source of information. It is considered a suitable key study source for this endpoint (NIOSH 2005). This is supported by data from the WHO ICSC (2005) which gives a vapour pressure of 180 Pa at 20°C. 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 database and so can be considered reliable and suitable for use for this endpoint.

The vapour pressure results are presented for high purity (solid) DCPD but as some of the data were generated at temperatures above the melting point, DCPD would be in liquid form. No information is available on the vapour pressure of commercial (liquid) DCPD but this is expected to be very similar to the high purity DCPD in its melted (liquid) form.