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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
calculation (if not (Q)SAR)
Remarks:
estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The melting point is between 200°C and 300°C, and therfore a recognised calculation method of the vapour pressure is sufficient in accordance with Column 2 of Annex VII Section 7.5.

Data source

Reference
Reference Type:
other: QSAR estimation
Title:
Modified Grain method (MPBPVP v1.43), EPI Suite, US EPA with a melting point of 279.5°C as an input parameter
Author:
EPI Suite, US EPA
Year:
2011
Bibliographic source:
EPI Suite, US EPA

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
EPI Suite, US EPA
Type of method:
other: Modified Grain method (calculation)

Test material

Constituent 1
Chemical structure
Reference substance name:
1-(4-methyl-2-nitrophenylazo)-2-naphthol
EC Number:
219-372-2
EC Name:
1-(4-methyl-2-nitrophenylazo)-2-naphthol
Cas Number:
2425-85-6
Molecular formula:
C17H13N3O3
IUPAC Name:
1-(4-methyl-2-nitrophenylazo)-2-naphthol

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: Modified Grain method (MPBPVP v1.43), EPI Suite, US EPA with a melting point of 279.5°C as an input parameter

Applicant's summary and conclusion