Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Deviations:
no
GLP compliance:
yes
Type of method:
effusion method: isothermal thermogravimetry

Test material

Constituent 1
Reference substance name:
Reaction products of diazotized 4-amino-6-[(4-aminophenyl)diazenyl]-3-[(4-aminophenyl)diazenyl]-5-hydroxynaphthalene-2,7-disulfonic acid, coupled with benzene-1,3-diamine, sodium salts
EC Number:
812-037-7
Cas Number:
1793011-72-9
Molecular formula:
Unknown for all components
IUPAC Name:
Reaction products of diazotized 4-amino-6-[(4-aminophenyl)diazenyl]-3-[(4-aminophenyl)diazenyl]-5-hydroxynaphthalene-2,7-disulfonic acid, coupled with benzene-1,3-diamine, sodium salts
Test material form:
solid

Results and discussion

Vapour pressureopen allclose all
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
< 0 Pa
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
< 0 Pa

Any other information on results incl. tables

In the range of 160°C and 190°C, the log p versus 1/T curve had a coefficient of correlation (r) of < 0.99. Since no accurate vapour pressure could be calculated from the obtained results, the weight losses were compared with the results of chrysene. Since the weight loss of the test item was lower than the weight loss of the reference compound the vapour pressure of the test item is considered to be below the vapour pressure of chrysene.

Applicant's summary and conclusion

Conclusions:
The isothermal TGA effusion method was applied for the determination of the vapour pressure of the substance. This was determined to be < 8.4x10^-7 at 20°C and < 1.1x10^-6 at 25°C indicating low vapour pressure of the substance.