Registration Dossier

Physical & Chemical properties

Auto flammability

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to
Guideline:
other: Lowest temperature determined at which substance vaporizes to form an ignitable mixture in air
Principles of method if other than guideline:
Lowest temperature determined at which substance vaporizes to form an ignitable mixture in air
GLP compliance:
not specified
Specific details on test material used for the study:
- Name of test material : Chromate(1-), [2,4-dihydro-4-[(2-hydroxy-5-methyl-3-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)][3-[4-[[5-(2,2-dimethylpropyl)-2-hydroxy-3-nitrophenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonamidato(2-)]-, hydrogen
- Molecular formula : C38H36CrN11O10S
- Molecular weight : 890.831 g/mol
- Smiles notation : [Cr+3].c1(N2C([C@@-](C(=N2)C)\N=N\c2cc(cc([N+]([O-])=O)c2[O-])CC(C)(C)C)=O)cc(S(N)(=O)=O)ccc1.c1(ccccc1)N1N=C([C@@-](C1=O)\N=N\c1c(c(cc(c1)C)[N+]([O-])=O)[O-])C
- InChl : 1S/C21H23N6O6S.C17H14N5O4.Cr/c1-12-18(20(29)26(25-12)14-6-5-7-15(10-14)34(22,32)33)24-23-16-8-13(11-21(2,3)4)9-17(19(16)28)27(30)31;1-10-8-13(16(23)14(9-10)22(25)26)18-19-15-11(2)20-21(17(15)24)12-6-4-3-5-7-12;/h5-10,28H,11H2,1-4H3,(H2,22,32,33);3-9,23H,1-2H3;/q2*-1;+3/p-1/b24-23+;19-18+;
- Substance type: Organic
- Physical state: Solid
Key result
Remarks on result:
other: Chemical (CAS no. 72928-87-1) ignites only when the flame of bunsen burner having temperature of 950°C is brought in contact with it.Thus it can be concluded that substance is flammable only at high temperature of about 950°C.
Conclusions:
Chromate(1 -), [2,4 -dihydro-4 -[(2 -hydroxy-5 -methyl-3 -nitrophenyl)azo]-5 -methyl-2 -phenyl-3H-pyrazol-3 -onato(2 -)][3 -[4 -[[5 -(2,2 -dimethylpropyl)-2 -hydroxy-3 -nitrophenyl]azo]-4,5 -dihydro-3 -methyl-5 -oxo-1H-pyrazol-1 -yl]benzenesulfonamidato(2 -)]-, hydrogen did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Chromate(1 -), [2,4 -dihydro-4 -[(2 -hydroxy-5 -methyl-3 -nitrophenyl)azo]-5 -methyl-2 -phenyl-3H-pyrazol-3 -onato(2 -)][3 -[4 -[[5 -(2,2 -dimethylpropyl)-2 -hydroxy-3 -nitrophenyl]azo]-4,5 -dihydro-3 -methyl-5 -oxo-1H-pyrazol-1 -yl]benzenesulfonamidato(2 -)]-, hydrogen is not auto-flammable.
Executive summary:

Chromate(1 -), [2,4 -dihydro-4 -[(2 -hydroxy-5 -methyl-3 -nitrophenyl)azo]-5 -methyl-2 -phenyl-3H-pyrazol-3 -onato(2 -)][3 -[4 -[[5 -(2,2 -dimethylpropyl)-2 -hydroxy-3 -nitrophenyl]azo]-4,5 -dihydro-3 -methyl-5 -oxo-1H-pyrazol-1 -yl]benzenesulfonamidato(2 -)]-, hydrogen did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Chromate(1 -), [2,4 -dihydro-4 -[(2 -hydroxy-5 -methyl-3 -nitrophenyl)azo]-5 -methyl-2 -phenyl-3H-pyrazol-3 -onato(2 -)][3 -[4 -[[5 -(2,2 -dimethylpropyl)-2 -hydroxy-3 -nitrophenyl]azo]-4,5 -dihydro-3 -methyl-5 -oxo-1H-pyrazol-1 -yl]benzenesulfonamidato(2 -)]-, hydrogen is not auto-flammable.

Description of key information

Chromate(1-), [2,4 -dihydro-4 -[(2 -hydroxy-5 -methyl-3 -nitrophenyl)azo]-5 -methyl-2 -phenyl-3H-pyrazol-3 -onato(2 -)][3 -[4 -[[5 -(2,2 -dimethylpropyl)-2 -hydroxy-3 -nitrophenyl]azo]-4,5 -dihydro-3 -methyl-5 -oxo-1H-pyrazol-1 -yl]benzenesulfonamidato(2 -)]-, hydrogen did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Chromate(1 -), [2,4 -dihydro-4 -[(2 -hydroxy-5 -methyl-3 -nitrophenyl)azo]-5 -methyl-2 -phenyl-3H-pyrazol-3 -onato(2 -)][3 -[4 -[[5 -(2,2 -dimethylpropyl)-2 -hydroxy-3 -nitrophenyl]azo]-4,5 -dihydro-3 -methyl-5 -oxo-1H-pyrazol-1 -yl]benzenesulfonamidato(2 -)]-, hydrogen is not auto-flammable.

Key value for chemical safety assessment

Additional information

Chromate(1-), [2,4 -dihydro-4 -[(2 -hydroxy-5 -methyl-3 -nitrophenyl)azo]-5 -methyl-2 -phenyl-3H-pyrazol-3 -onato(2 -)][3 -[4 -[[5 -(2,2 -dimethylpropyl)-2 -hydroxy-3 -nitrophenyl]azo]-4,5 -dihydro-3 -methyl-5 -oxo-1H-pyrazol-1 -yl]benzenesulfonamidato(2 -)]-, hydrogen did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Chromate(1 -), [2,4 -dihydro-4 -[(2 -hydroxy-5 -methyl-3 -nitrophenyl)azo]-5 -methyl-2 -phenyl-3H-pyrazol-3 -onato(2 -)][3 -[4 -[[5 -(2,2 -dimethylpropyl)-2 -hydroxy-3 -nitrophenyl]azo]-4,5 -dihydro-3 -methyl-5 -oxo-1H-pyrazol-1 -yl]benzenesulfonamidato(2 -)]-, hydrogen is not auto-flammable.