Potassium hexadecyl hydrogen phosphate

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:

2011-11-14

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

dated 31 May 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

burning rate test: preliminary screening test

Burning time:

573 s

Interpretation of results:

non flammable

Remarks:

Migrated information

Conclusions:

The test item potassium hexadecyl hydrogen phosphate was ignited and burned longer than 4 minutes over a distance from 200 mm. Therefore, the test item is considered not to be flammable.

Executive summary:

A study according to Regulation (EC) No 440/2008 method A.10 was conducted. Potassium hexadecyl hydrogen phosphate was ignited and burned longer than 4 minutes over a distance from 200 mm. Therefore, the test item is considered not to be flammable in the sense of Regulation (EC) No 440/2008 method A.10. UN-method and EU-method A.10 are nearly identical. The UN N.1 test, however, has additional criteria whether a wetted zone is able to stop the fire. It can be expected, that the result is also true for a N.1-test according the 'Recommendations on the Transport of Dangerous Goods; Manual of Tests and Criteria'

Reference 2

Endpoint:

flammable gases

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a solid

Reference 3

Endpoint:

pyrophoric liquids

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a solid

Reference 4

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

other:

Reference 5

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 6

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

other:

Description of key information

In accordance with Regulation (EC) No 440/2008 method A.10 potassium hexadecyl hydrogen phosphate is not highly flammable, has no pyrophoric properties, does not liberate flammable gases on contact with water, has no self-heating abilities and is not self-reactive.

Key value for chemical safety assessment

Flammability:

non flammable

Additional information

A study according to Regulation (EC) No 440/2008 method A.10 was conducted. Potassium hexadecyl hydrogen phosphate was ignited and burned longer than 4 minutes over a distance from 200 mm. Therefore, the test item is considered not to be flammable in the sense of Regulation (EC) No 440/2008 method A.10. UN-method and EU-method A.10 are nearly identical. The UN N.1 test, however, has additional criteria whether a wetted zone is able to stop the fire. It can be expected, that the result is also true for a N.1-test according the 'Recommendations on the Transport of Dangerous Goods; Manual of Tests and Criteria'

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No. 1272/2008

In accordance with Annex I Section 2.2, Section 2.3, Section 2.7, Section 2.9, Section 2.10 Section 2.11, Section 2.12 of Regulation (EC) No 1272/2008, as amended for fourteenth time in Regulation (EC) 2020/217, and UN GHS Rev 8 (2019) the test item has not to be classified as, readily combustible solid in class 4 Division 4.1, flammable liquid, self-heating substance in Class 4 Division 4.2, substances which in contact with water emit flammable gases in Class 4 Division 4.3, pyrophoric liquid, pyrophoric solid in class 4 Division 4.2, flammable gases in class 2 or as aerosol in class 2.