Phosphocreatine, sodium salt

Flammability

Administrative data

Endpoint:

self-heating substances / mixtures

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 -16 May 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

other: UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria

Version / remarks:

Rev. 6 (2015)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: VDI 2263 Sheet 1 Grewer Oven

Version / remarks:

1990

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

Phosphocreatine, sodium salt

EC Number:

213-074-6

EC Name:

Phosphocreatine, sodium salt

Cas Number:

922-32-7

Molecular formula:

C4H8N3O5P.2Na

IUPAC Name:

sodium [carbamimidoyl(methyl)amino](phosphono)acetate

impurity 1

Reference substance name:

Water

EC Number:

231-791-2

EC Name:

Water

Cas Number:

7732-18-5

Molecular formula:

H2O

IUPAC Name:

Oxidane

Test material form:

solid: crystalline

Details on test material:

Batch No: 1413900

Results and discussion

Self-heating substances / mixtures

Self-heating substances / mixtures 1

Key result

Test procedure:

other: Grewer oven

Remarks:

pure test item

Max. temp. reached:

190

Result:

other: temperature increase was observed starting at 110°C

Remarks on result:

other: on the basis of the results, the test item cannot be classified. Further tests are needed.

Self-heating substances / mixtures 2

Key result

Test procedure:

other: Grewer oven

Remarks:

pure test item

Max. temp. reached:

245

Result:

other: temperature increase was observed starting at 210°C

Remarks on result:

other: on the basis of the results, the test item cannot be classified. Further tests are needed

Self-heating substances / mixtures 3

Key result

Test procedure:

other: Grewer oven

Remarks:

test item in mixture with Kieselguhr

Max. temp. reached:

175

Result:

other: temperature increase was observed starting at 110°C

Remarks on result:

other: on the basis of the results, the test item cannot be classified. Further tests are needed.

Self-heating substances / mixtures 4

Key result

Test procedure:

other: Grewer oven

Remarks:

test item in mixture with Kieselguhr

Max. temp. reached:

250

Result:

other: a small exothermic effect was observed starting at 190°C

Remarks on result:

other: on the basis of the results, the test item cannot be classified. Further tests are needed.

Any other information on results incl. tables

In the investigation of self-ignition in the Grewer Oven for the pure test item an exothermic process was detected starting at a temperature of approx. 110 °C that led to a maximum temperature of approx. 190 °C (corresponding oven temperature 130 °C). A further small exothermic effect was observed starting at a temperature of 210 °C, which led to a maximum temperature of approx. 245 °C (corresponding oven temperature 230 °C). After the measurement a black residue remained in the wire basket.

For the test item in mixture with Kieselguhr an exothermic process was detected starting at a temperature of approx. 110 °C that led to a maximum temperature of approx. 175 °C (corresponding oven temperature 155 °C). A further small exothermic effect was observed starting at a temperature of 190 °C, which led to a maximum temperature of approx. 250 °C (corresponding oven temperature 210 °C).

Applicant's summary and conclusion

Interpretation of results:

study cannot be used for classification

Conclusions:

The pure test item Phosphocreatine, sodium salt (CAS no.922-32-7) indicated a self-heating at atmospheric pressure starting at a temperature of 110 °C. This self-heating process led to a maximum temperature of approx. 190 °C (corresponding oven temperature 130 °C). A second exothermic effect was observed starting at a temperature of 210 °C, which led to a maximum temperature of approx. 245 °C (corresponding oven temperature 230 °C).
On the basis of the results of the tests on the self-ignition in the Grewer Oven according to the UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Appendix 6 Division 4.2, a classification of the test item as self-heating substance cannot be excluded. Further tests have to be performed for the classification.

Executive summary:

The pure test item Phosphocreatine, sodium salt (CAS no.922-32-7) indicated a self-heating at atmospheric pressure starting at a temperature of 110 °C. This self-heating process led to a maximum temperature of approx. 190 °C (corresponding oven temperature 130 °C). A second exothermic effect was observed starting at a temperature of 210 °C, which led to a maximum temperature of approx. 245 °C (corresponding oven temperature 230 °C).

On the basis of the results of the tests on the self-ignition in the Grewer Oven according to the UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Appendix 6 Division 4.2, a classification of the test item as self-heating substance cannot be excluded. Further tests have to be performed for the classification.