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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: scientifically acceptable study with detailed documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guideline
Guideline:
other: measured
GLP compliance:
no
Type of method:
gas saturation method

Test material

Constituent 1
Chemical structure
Reference substance name:
1,2,3,4-tetrahydroisoquinoline
EC Number:
202-050-0
EC Name:
1,2,3,4-tetrahydroisoquinoline
Cas Number:
91-21-4
Molecular formula:
C9H11N
IUPAC Name:
1,2,3,4-tetrahydroisoquinoline
Details on test material:
name of test material (as cited in study report): 1,2,3,4-Tetrahydroisochinolin
Analytical purity: ca. 93%

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0.033 hPa
Remarks on result:
other: extrapolated value based on measured values
Temp.:
26 °C
Vapour pressure:
0.07 hPa
Remarks on result:
other: measured value
Temp.:
58.5 °C
Vapour pressure:
0.979 hPa
Remarks on result:
other: measured value

Any other information on results incl. tables

The regression of the results leads with a mean deviation of 2,25% to the following equotation:

ln p (bar) =A+B/(C+T)

A= -0,1588,       B=-761,05,       C=54,97

temperature
t[°C]
pressure (exp.)
p[hPa]
pressure (calc.)
p[hPa]
dev
[%]
26,00 0,0699 0,0707 -1,10
29,70 0,108 0,1066 1,34
29,90 0,108 1,0880 -0,78
43,50 0,389 0,3755 3,47
58,50 0,979 1,043 -6,54
69,60 1,960 1,896 3,27

Applicant's summary and conclusion