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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
02 Dec 2019 - 19 Dec 2019
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
GLP compliance:
yes
Specific details on test material used for the study:
Name Sulphide Precipitate
Batch no. 20190601
Appearance blackish-green, wet sticky solid
Composition 2.9 % Cu; 18.0 % Zn; 0.5 % Fe; 0.1 % Pb; 0.7 % Cd; 0.4 % As; 0.3 % Sb; 0.1 % Sn; 0.0 % Bi; 0.0 % Br; 2.7 % Cl; 1.1 % F
CAS No. unknown
EC-No. 951-963-7
Molecular formula not stated
Molecular weight not stated
Purity 100 % (UVCB)
Homogeneity homogeneous
Vapour pressure not stated
Stability in solvents H2O: not stated; EtOH: not stated; acetone: not stated; CH3CN: not stated; DMSO: not stated
Solubility in solvents H2O: not stated; EtOH: not stated; acetone: not stated; CH3CN: not stated; DMSO: not stated
Production date not stated
Expiry date 31. Dec. 2025
Storage room temperature (20 ± 5 °C)
Stability stable under storage conditions
Key result
Relative self-ignition temperature:
> 400 °C
Remarks on result:
no self ignition observed under the test conditions
Conclusions:
The test item Sulphide Precipitate is considered as showing no self-ignition up to 400 °C under the test conditions
Executive summary:

The auto-flammability behaviour was determined by placing the test item into a stainless steel cube and heating from room temperature to an oven temperature of 400 °C with the ZPA-3 oven.

No increase in the temperature of the sample in comparison to that of the oven could be detected, also no signs of ignition could be observed.

Therefore, the test itemSulphide Precipitateshould be considered as showing no self-ignition up to 400°C under the test conditions.

Description of key information

no self-ignition up to 400°C

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
400 °C

Additional information

The auto-flammability behaviour was determined by placing the test item into a stainless steel cube and heating from room temperature to an oven temperature of 400 °C with the ZPA-3 oven.

No increase in the temperature of the sample in comparison to that of the oven could be detected, also no signs of ignition could be observed.

Therefore, the test itemSulphide Precipitateshould be considered as showing no self-ignition up to 400°C under the test conditions.