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Flash point

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Reference
Endpoint:
flash point, other
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: OECD 103
Principles of method if other than guideline:
The flash point of a substance is the lowest temperature at which there will be enough flammable vapor to ignite when an ignition source is applied.
GLP compliance:
no
Type of method:
closed cup
Flash point apparatus:
Pensky-Martens apparatus
Test material information:
Composition 1
Specific details on test material used for the study:
- Name of test material : 4,5-dihydro-5-oxo-4-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid
- Molecular formula : C18H16N4O12S3
- Molecular weight : 576.538 g/mol
- Smiles notation : O=C(O)C1=NN(C(=O)[C@@H]1\N=N\c1ccc(S(=O)(=O)CCOS(=O)(=O)O)cc1)c1ccc(S(=O)(=O)O)cc1
- InChl : 1S/C18H16N4O12S3/c23-17-15(16(18(24)25)21-22(17)12-3-7-14(8-4-12)36(28,29)30)20-19-11-1-5-13(6-2-11)35(26,27)10-9-34-37(31,32)33/h1-8,15H,9-10H2,(H,24,25)(H,28,29,30)(H,31,32,33)/b20-19+
- Substance type: Organic
- Physical state: Solid
Key result
Flash point:
> 350 °C
Atm. press.:
980.9 hPa
Remarks on result:
other: no other detail available
Interpretation of results:
GHS criteria not met
Conclusions:
The flash point of 4,5-dihydro-5-oxo-4-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid is greater than 350°C at 980.9 hPa.
Executive summary:

The flash point determination of 4,5 -dihydro-5 -oxo-4 -[[4 -[[2 -(sulphooxy)ethyl]sulphonyl]phenyl]azo]-1 -(4 -sulphophenyl)-1H-pyrazole-3 -carboxylic acid (CAS No. 10149 -98 -1) was done as per the test guideline OECD 103. The method is closed cup method using Pensky Martin’s Flash Point Apparatus. The flashpoint of 4,5 -dihydro-5 -oxo-4 -[[4 -[[2 -(sulphooxy)ethyl]sulphonyl]phenyl]azo]-1 -(4 -sulphophenyl)-1H-pyrazole-3 -carboxylic acid was determine to be greater than 350°C at 980.9 hPa.

Description of key information

The flash point of 4,5-dihydro-5-oxo-4-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid  is greater than 350°C at 980.9 hPa.

Key value for chemical safety assessment

Flash point at 101 325 Pa:
350 °C

Additional information

The flash point determination of 4,5 -dihydro-5 -oxo-4 -[[4 -[[2 -(sulphooxy)ethyl]sulphonyl]phenyl]azo]-1 -(4 -sulphophenyl)-1H-pyrazole-3 -carboxylic acid (CAS No. 10149 -98 -1) was done as per the test guideline OECD 103. The method is closed cup method using Pensky Martin’s Flash Point Apparatus. The flashpoint of 4,5 -dihydro-5 -oxo-4 -[[4 -[[2 -(sulphooxy)ethyl]sulphonyl]phenyl]azo]-1 -(4 -sulphophenyl)-1H-pyrazole-3 -carboxylic acid was determine to be greater than 350°C at 980.9 hPa.