1-naphthol

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 21 December 2016 to 12 January 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.17 (Oxidising Properties (Solids))

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: A017 / Batch Number : 7215604684
- Expiration date of the lot/batch: NA
- Purity test date: 09 september 2016
- Purity : 99.1% ±0.1%
- Re-analysis date : NA
- Description : Cream / beige to grey flakes
Relative Density : 1.28 g/cm3 (data taken from SDS)

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: NA
- Stability under test conditions: NA
- Solubility and stability of the test substance in the solvent/vehicle: NA
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: NA

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

Contact with:

powdered cellulose

Duration of test (contact time):

ca. 182 s

Key result

Sample tested:

reference mixture as specified

Remarks:

Composition of 2:1 ratio (barium nitrate : Cellulose)

Parameter:

preliminary test

Result:

ca. 31 s

Remarks on result:

vigorous reaction in the preliminary test

Remarks:

Sparkling orange flame

Key result

Sample tested:

test mixture as specified

Remarks:

Composition of 2:1 ratio (A017 : Cellulose)

Parameter:

preliminary test

Result:

ca. 182 s

Remarks on result:

other:

Remarks:

type. Comments : Large orange flame with black smoke. of reaction moderate

Moisture content determination (as weight loss) of a sample by drying at atmospheric pressure

Apparatus : Mettler Toledo HS153, electronic moisture analyser at 50°C for 1,4 minutes

Sample is tested as received.

Moisture content : 0.24% by weight (average of 2 runs)

Comments : test was terminated at both 100°C and 75°C and repeated at 50°C due to sample melting. Since the moisture content is < 0.5%, the sample does not need to be dried for the oxidising solids test.

Interpretation of results:

GHS criteria not met

Conclusions:

The test item is not an oxidising solids on the basis of a preliminary screening test (observation of the vigour and the duration of the burning in comparison with a reference mlixture).

Executive summary:

The substance A017 has been tested according to EU Method A17 ( Oxidising Properties for solids) and the GLP.

In the screening phase the burning of a mixture 2:1 of the substance with the cellulose is compared to a reference mixture. The molecular structure of the sample together with the reaction time observed during the preliminary screening test show that the test item is not an oxidising solid. Conduct of the full train test was therefore not required.

Description of key information

The test item is not an oxidising solids on the basis of a preliminary screening test (observation of the vigour and the duration of the burning in comparison with a reference mlixture).  

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Additional information

The substance A017 has been tested according to EU Method A17 ( Oxidising Properties for solids) and the GLP.

In the screening phase the burning of a mixture 2:1 of the substance with the cellulose is compared to a reference mixture. The molecular structure of the sample together with the reaction time observed during the preliminary screening test show that the test item is not an oxidising solid. Conduct of the full train test was therefore not required.