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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental work started on 07 Dec 2017 and was completed on 05 Jan 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 guideline
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Version / remarks:
30 May 2008
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Copper dichromium tetraoxide
EC Number:
234-634-6
EC Name:
Copper dichromium tetraoxide
Cas Number:
12018-10-9
Molecular formula:
Cr2CuO4
IUPAC Name:
dichromium(3+) copper(2+) tetraoxidandiide
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
Identification: Copper dichromium tetraoxide
CAS No: 12018-10-9
Appearance/Physical state: Dark blue powder
Batch: EX 14502.6
Purity: 88.5 wt %
Expiry date: 01 January 2023
Storage conditions: Room temperature, in the dark

Results and discussion

Relative self-ignition temperature (solids)
Key result
Relative self-ignition temperature:
>= 400 °C

Any other information on results incl. tables

The test item was a very dark blue powder.  Whilst heating the test item, no relevant exothermic reaction/self-heating of the sample was observed.  The temperature/time curve is shown in Figure 1 (see Illustration (picture/graph).  On completion of the test, the test item was a very dark blue powder.

Applicant's summary and conclusion

Conclusions:
The test item has been determined to not have a relative self-ignition temperature below 400 °C.
Executive summary:

The study was was conducted in compliance with Good Laboratory Practice.

Copper dichromium tetraoxide was found to have no relative self-ignition below 400 °C, using a procedure designed to be compatible with Method A.16 Relative Self-Ignition Temperature for Solids of Commission Regulation (EC) No 440/2008 of 30 May 2008.