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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: No GLP study but other quality assurance

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
no
Remarks:
other quality assurance
Type of method:
thermal analysis

Test material

Constituent 1
Reference substance name:
cupro, copper processing
EC Number:
919-583-6
IUPAC Name:
cupro, copper processing
Details on test material:
Representative samples collected according to Standard sampling protocol of the REACH Copper Consortium (see attach to Iuclid 1.4)
B15, sample description: Cupro, Representative charge, Metallic fraction (composite, grinded), sample code: MC_B15_54_1A_comp_0904, lab code: 09TT02932
B15, sample description: Cupro, Representative charge, metallic fraction (representative pieces, lumps), sample code: MC_B15_54_1B_comp_0904, lab code: 09TT02790
B15, sample description: Cupro, Representative charge, Oxidic fraction (ie powder) (composite, homogenized), sample code: MC_B15_54_2_comp_0904, lab code: 09TT02933
B15, sample description: Cupro, Al-specific charge, Metallic fraction (composite, grinded), sample code: MC_B15_Al_3A_comp_0906, lab code: 09TT05024
B15, sample description: Cupro, Al-specific charge, Metallic fraction (representative pieces, lumps), sample code: MC_B15_Al_3B_comp_0906, lab code: 09TT04859

Results and discussion

Melting / freezing pointopen allclose all
Melting / freezing pt.:
630 °C
Remarks on result:
other: sample 09TT02932
Melting / freezing pt.:
748 °C
Remarks on result:
other: sample 09TT02933
Melting / freezing pt.:
1 251 °C
Remarks on result:
other: sample 09TT05024

Any other information on results incl. tables

During the melting tests of the three (3) cupro samples were heated in Al2O3crucible using nitrogen atmosphere.

Based on the TG/DSC measurements, the decomposition and melting of the cupro samples 09TT02932, 09TT02933 and 09TT05024, start at 630 °C, 748 °C and 1251°C.

09TT02932

The endothermic peak in the curve is at the temperature range 630 – 658 °C. It indicates melting or transformation.

09TT02933

The endothermic peaks in the curve are at the temperature ranges 748 – 944 °C and 969 – 1185°C. The mass of the sample starts to decrease at the temperature ~800 °C. These phenomena indicate that some components, obviously lead components, start to melt and evaporize.     

09TT05024

The exothermic peaks are in the curve at the temperature ranges 1053 – 1104 °C and 1309 – 1352 °C. The mass of the sample starts to decrease at ~975 °C. These phenomena indicate reactions, which produces gas, with nitrogen. The endothermic peak in the curve is at the temperature ranges 1251 – 1290 °C. It indicates decomposition, evaporation and melting.

 

Applicant's summary and conclusion

Executive summary:

Based on the TG/DSC measurements, the decomposition and melting of the cupro samples 09TT02932, 09TT02933 and 09TT05024 start at 630oC, 748 °C and 1251°C.