4-hydroxybenzophenone

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

30 November 2018 to 27 May 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Version / remarks:

2015

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Appearance: White powder
Purity/Composition: 99.72%
Test item storage: At room temperature desiccated

Key result

Test procedure:

burning rate test: preliminary screening test

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

In contact with the flame of the gas burner the test item melted, emitted yellow sparks and turned into a brown charred residue.  Grey smoke was observed.  After removal of the ignition source, no propagation of combustion of the test item was observed.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The preliminary screening test was performed for the determination of the flammability of 4-Hydroxy-benzophenone.

No propagation of combustion of the test item along 200 mm length of the pile within 2 minutes was observed. According to the guidelines, performance of the burning rate test is not required. Based on the results obtained, the test item is considered ‘not flammable’.

Executive summary:

In this guideline (UN.1) study conducted with GLP certification, the test material (EC 214-507-1) was determined to not be classified as flammable under GHS criteria.

Reference 2

Endpoint:

pyrophoric solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Interpretation of results:

other: ← Complete pick list based on CLP criteria, see below

Reference 3

Endpoint:

self-heating substances / mixtures

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 completely molten at 160°C

Reference 4

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Interpretation of results:

other: ← Complete pick list based on CLP criteria, see below

Description of key information

Flammable Solids Study conducted to recognised testing guidelines with GLP certification. Data waiver for water contact and pyrophoric properties as the test item does not have any chemical groups associated with these properties. Data waiver for self-heating as the test item has a melting point < 160 °C.

Key value for chemical safety assessment

Flammability:

not classified

Justification for classification or non-classification

Test item tested negative for Flammable Solids test. Water contact, pyrophoric properties and self-heating have data waivers due to scientifically not being necessary. Thus the test item is not classified as flammable under GHS.