Registration Dossier

Administrative data

Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1984
Report Date:
1984

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Propagation of a fire at local ignition and check for flammability with different ignition sources
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
Name of test material (as cited in study report): 2,3,5-trimethylhydroquinone
Analytical purity: 99.5 %

Results and discussion

Flammable solids
Key result
Test procedure:
burning time (test type not further specified)
Remarks on result:
substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period
Remarks:
at room temperature

Any other information on results incl. tables

Propagation of a fire at local ignition

at room temperature: burns shortly, goes out quickly (combustion factor 2)

at 100°C: burns shortly, goes out quickly (combustion factor 2)

Check for flammability with different ignition sources

1. Cerium / iron sparks: no ignition

2. dual fuel: no ignition

3. gas flame, 2 cm:

< 1 s: no ignition,

> 1 s: ignition and becomes extinct

4. glow rod:

substance: ignition and becomes extinct

fumes: ignition

Applicant's summary and conclusion

Interpretation of results:
non flammable
Remarks:
Migrated information
Conclusions:
Trimethylhydroquinone is not classified as flammable substance since a fire at local ignition burns shortly but goes out quickly at room temperature.
Executive summary:

A locally ignited spot of trimethylhydroquinone burns shortly but goes out quickly at room temperature.