Diphosphoric acid, copper salt

Flammability

Link to relevant study record(s)

Reference

Reference 1

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 2

Endpoint:

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 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

Reference 5

Endpoint:

self-heating substances / mixtures

Data waiving:

other justification

Justification for data waiving:

other:

Reference 6

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-10-26 to 2015-11-06

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Institut für Biologische Analytik und Consulting IBACON GmbH

Specific details on test material used for the study:

- Name of test material: Copper(ll)pyrophosphate
- Physical state: solid
- Analytical purity: > 80 % based on 42.5 % CuO and 39.10 % P2O5
- Impurities: water < 18 %, free orthophosphate and pyrophosphate < 2%
- Purity test date: October 14, 2015
- Lot/batch No.: 9000025486
- Expiration date of the lot/batch: February 12, 2017
- Storage condition of test material: At room temperature (20 °C ± 5 °C) in the dark

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

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test item could not be ignited. Therefore, the test item is considered to be not flammable.

Description of key information

The test item could not be ignited. Therefore, Copper(ll) pyrophosphate is considered to be not flammable, according to the criteria as described in the guideline.

The substance is handled and used in air and therefore spontaneous ignition in air (pyrophoricity) is not anticipated. In addition, the substance is not known to be flammable in contact with water. In addition the substance is no aerosol.

Key value for chemical safety assessment

Flammability:

non flammable

Additional information

The flammability of the test item Copper(ll)pyrophosphate (CAS 10102-90-6, EC 233-279-4) was determined according to EU method A.10 (Commission Regulation (EC) No 440/2008). The test item was used in its initial form. The test item could not be ignited under the test conditions. Therefore, the test item is considered to be not flammable.

Justification for classification or non-classification

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

Based on available data on flammability, substances in contact with water, aerosols and self-heating and pyrophoric properties, the test item is not classified according to Regulation (EC) No 1272/2008 (CLP).