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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
2004
Report date:
2004
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report date:
2005
Reference Type:
study report
Title:
Unnamed
Year:
2004
Report date:
2004

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
Cited as Directive 92/69/EEC, A.4
GLP compliance:
yes (incl. QA statement)
Type of method:
static method

Test material

Constituent 1
Chemical structure
Reference substance name:
1,4-dichlorobut-2-ene
EC Number:
212-121-8
EC Name:
1,4-dichlorobut-2-ene
Cas Number:
764-41-0
Molecular formula:
C4H6Cl2
IUPAC Name:
1,4-dichlorobut-2-ene
Details on test material:
- Name of test material (as cited in study report): 1,4-dichloro-2-butene (31.9 % cis- and 64.2 % trans-isomer)
- Analytical purity: 96.1 %

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
14 hPa
Temp.:
25 °C
Vapour pressure:
15.9 hPa
Temp.:
50 °C
Vapour pressure:
28 hPa
Temp.:
-11.2 °C
Vapour pressure:
5.6 hPa
Temp.:
16.04 °C
Vapour pressure:
12.6 hPa

Any other information on results incl. tables

1. Details on measured data:

 

Temperature measured [°C]

 Temperature corrected [°C]  Temperature [1/K*104]  Vapour Pressure measured [hPa] Vapour Pressure corrected [hPa]  Regression [hPa]  Deviation [ delta p / p *100%] 
 -12.0  -11.21  38.18 5.6  5.41  5.4   -0.6
 -1.3  -1.00  36.74  8.4  8.20  7.7  6.7
 6.0  6.11  35.81  9.9  9.70  9.6  1.5
 16.0  16.04  34.58  12.5  12.30  12.6  -2.5

2. Antoine equation:

A= 3.9454

B= 699.71

C= 230

Correlation Coefficient: R= 0.99524

Applicant's summary and conclusion