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Physical & Chemical properties

Explosiveness

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Administrative data

Endpoint:
explosiveness
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well-documented study report which meets basic scientific principles. The test substance rapidly oxidises to indigo on contact with air.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: VDE 0165; VDI 2263 Hartmann-Rohr
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
Indigo
IUPAC Name:
Indigo
Details on test material:
- Name of test material: Indigo
- Molecular formula: C16H10N2O2
- Molecular weight: 262.2628
- Smiles notation: O=C3c4ccccc4NC3=C2Nc1ccccc1C2=O
- InChl: InChI=1/C16H10N2O2/c19-15-9-5-1-3-7-11(9)17-13(15)14-16(20)10-6-2-4-8-12(10)18-14/h1-8,17-18H
- Structural formula attached as image file: see Fig. 1 under item 4.1
- Substance type: active ingredient
- Physical state: solid

Results and discussion

Small-scale preliminary testsopen allclose all
Parameter:
other: More sensitive to shock than m-dinitrobenzene
Remarks:
migrated information
Remarks on result:
other: no data
Parameter:
other: More sensitive to friction than m-dinitrobenzene
Remarks:
migrated information
Remarks on result:
other: no data
Parameter:
other: Explosive under influence of flame
Remarks:
migrated information
Remarks on result:
negative (not further specified)
Parameter:
other: Explosive (not specified)
Remarks:
migrated information
Remarks on result:
negative (not further specified)

Applicant's summary and conclusion

Interpretation of results:
non explosive
Remarks:
Migrated information
Executive summary:

Results for Indigo:

Flash point > 250°C

Ignition point > 600°C

Flammability: with heating rod (800°C)

DTA: Onset temperature: 295°C

Maximum reaction: 330°C

Released heat: 100 J/g

Based on structural increments and the above data, indigo and likely vat indigo sodium salt is not explosive.