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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Flammability

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Administrative data

Endpoint:
self-heating substances / mixtures
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15 - 16 February 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018

Materials and methods

Test guidelineopen allclose all
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
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

Constituent 1
Chemical structure
Reference substance name:
Disodium 4-nitrophenyl phosphate
EC Number:
224-246-5
EC Name:
Disodium 4-nitrophenyl phosphate
Cas Number:
4264-83-9
Molecular formula:
C6H4NO6P.2Na
IUPAC Name:
disodium 4-nitrophenyl phosphate
impurity 1
Chemical structure
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
Details on test material:
Batch Nr: 11674900
Storage: 2-8°C.

Results and discussion

Self-heating substances / mixtures
Key result
Test procedure:
other: Grewer oven
Remarks:
pure test item
Max. temp. reached:
485
Result:
other: An exothermic process was observed starting at a temperature of approx. 225 °C that led to a maximum temperature of approx. 485 °C.

Any other information on results incl. tables

In the investigation of self-ignition in the Grewer Oven for the pure test item an endothermic effect was detected in the temperature range of 50 – 170 °C. An exothermic process was observed starting at a temperature of approx. 225 °C that led to a maximum temperature of approx. 485 °C (corresponding oven temperature 320 °C). After the measurement a grey residue remained in the wire basket.

Applicant's summary and conclusion

Interpretation of results:
not classified based on GHS criteria
Conclusions:
The pure test item 4-Nitrophenyl phosphate disodium salt (CAS no. 4264-83-9) indicated a self-heating at atmospheric pressure starting at a temperature of approx. 225 °C that led to a maximum temperature of approx. 485 °C (corresponding oven temperature 320 °C).
On the basis of the results of the tests on the self-ignition in the Grewer Oven, the test item is classified as follows:
UN Transport Regulation: The test item is not classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.
GHS / CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item is not classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11, respectively.
Executive summary:

The pure test item 4-Nitrophenyl phosphate disodium salt (CAS no. 4264-83-9) indicated a self-heating at atmospheric pressure starting at a temperature of approx. 225 °C that led to a maximum temperature of approx. 485 °C (corresponding oven temperature 320 °C).

On the basis of the results of the tests on the self-ignition in the Grewer Oven, the test item is classified as follows:  

UN Transport Regulation: The test item is not classified as self-heating substance in class 4, division 4.2 according to the UN Transport Regulation.

GHS / CLP Regulation EC 1272/2008 Annex 1: 2.11: The test item is not classified as self-heating substance according to GHS/CLP Regulation EC 1272/2008 Annex 1: 2.11, respectively.