Tetrasodium [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-)

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature, other

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

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 the test chemical: Tetrasodium [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-)
Common Name: C.I Direct Blue 218
IUPAC name: tetrasodium (3E)-5-amino-3-{2-[4-(4-{2-[(2E)-8-amino-1-oxo-3,6-disulfonato-1,2-dihydronaphthalen-2-ylidene]hydrazin-1-yl}-3- hydroxyphenyl)-2-hydroxyphenyl]hydrazin-1-ylidene}-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate dicopper
Molecular Formula: C32H20Cu2N6Na4O16S4
Molecular Weight: 1087.84 g/mol
SMILES Notation: c12c3c(c(S(=O)(=O)[O-])cc1cc(S(=O)(=O)[O])cc2N)N=Nc1ccc(cc1O[Cu]O3)c1cc2c(N=Nc3c(cc4c(c3O[Cu]O2)c(cc(c4)S(=O) (=O)[O-])N)S(=O)(=O)[O-])cc1.[Na+].[Na+].[Na+].[Na+]
InChI: 1S/C32H24N6O16S4.2Cu.4Na/c33-19-11-17(55(43,44)45)5-15-9-25(57(49,50)51)29(31(41)27(15)19)37-35-21-3-1-13(7-23(21)39) 14-2-4-22(24(40)8-14)36-38-30-26(58(52,53)54)10-16-6-18(56(46,47)48)12-20(34)28(16)32(30)42;;;;;;/h1-12,39-42H,33-34H2,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;;;/q;2*+2;4*+1/p-8/b37-35-,38-36-;;;;;;
Substance Type: Organic
Physical State: Solid Deep purple to dark blue amorphous powder

Key result

Remarks on result:

other: C.I Direct Blue 218 (CAS no. 28407-37-6) 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:

C.I Direct Blue 218 (CAS no. 28407-37-6) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that C.I Direct Blue 218 (CAS no. 28407-37-6) is not auto-flammable.

Executive summary:

C.I Direct Blue 218 (CAS no. 28407-37-6) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that C.I Direct Blue 218 (CAS no. 28407-37-6) is not auto-flammable.

Description of key information

C.I Direct Blue 218 (CAS no. 28407-37-6) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that C.I Direct Blue 218 (CAS no. 28407-37-6) is not auto-flammable.

Additional information

C.I Direct Blue 218 (CAS no. 28407-37-6) did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that C.I Direct Blue 218 (CAS no. 28407-37-6) is not auto-flammable.