1-naphthol

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

pyrophoric solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Reference 2

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

Reference 3

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 27 May 2016 to 23 September 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

GLP compliance:

yes

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: A017 / Lot Number ADT1214003
- Expiration date of the lot/batch: TBD
- Purity test date: 27 may 2016
Re-analysis date : 08 June 2016 and Purity : 98.8%
Re-analysis date : 08 September 2016 and Purity 99.2%
The purity is unchanged and remains 98.9%

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: room temperature
- Stability under test conditions: yes
- Solubility and stability of the test substance in the solvent/vehicle: no
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: no

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: no
- Preliminary purification step (if any): no
- Final dilution of a dissolved solid, stock liquid or gel: no
- Final preparation of a solid: no

Key result

Test procedure:

burning rate test: preliminary screening test

Burning time:

ca. 4 min

Remarks on result:

other:

Remarks:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 4 minutes test period

Interpretation of results:

not classified based on GHS criteria

Conclusions:

A017 was determined to be not flammable.

Executive summary:

A017 was determined to be not flammable.

The flammability of A017 was determined according to the EU method A.10  (Flammability (solids)) and GLP.

A hot flame was applied to one end of the powder strip (approximately 250 mm long by 20 mm wide and 10 mm height) until the powder ignites or for a maximum of 2 min.

Since the substance does not ignite and does not propagate combustion, it is considered as not flammable according to CLP criteria.

Description of key information

A017 was determined to be not flammable. It is not pyrophoric and does not emit flammable gases upon contact with water.

Key value for chemical safety assessment

Flammability:

not classified

Justification for classification or non-classification

A017 was determined to be not flammable.

The flammability of A017 was determined according to the EU method A.10  (Flammability (solids)) and GLP.

A hot flame was applied to one end of the powder strip (approximately 250 mm long by 20 mm wide and 10 mm height) until the powder ignites or for a maximum of 2 min.

Since the substance does not ignite and does not propagate combustion, it is considered as not flammable according to CLP criteria.