Registration Dossier
Registration Dossier
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EC number: 201-222-2 | CAS number: 79-74-3
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Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 June 2010-13 September 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: This study has been performed according to OECD and EC guidelines and according to GLP principles.
- Qualifier:
- according to guideline
- Guideline:
- other: United Nations (UN), UN no. ST/SG/AC.10/11/Rev.4: Recommendations on the Transport of Dangerous Goods, Part III: Classification Procedures, Test Methods and Criteria Relating to Explosives of Class 3, Class 4, Division 5.1 and Class 9, Test N.4 , 2003.
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Remarks on result:
- no self ignition observed under the test conditions
- Conclusions:
- The self-heating temperature of Lowinox® AH25 was determined was determined by Test 1 of the Modified Bowes-Cameron Cage test.
Based on the results obtained, the test substance is considered “not a self-heating substance”. - Executive summary:
The aim of the study was to determine the following physico-chemical properties for Lowinox® AH25: Self-heating temperature in accordance with the following guidelines:
United Nations (UN), UN no. ST/SG/AC.1 0/11/Rev.4: Recommendations on the Transport of Dangerous Goods, Part Ill: Classification Procedures, Test Methods and Criteria Relating to Explosives of Class 3, Class 4, Division 5.1 and Class 9, Test N.4: "Test Method for Self-heating Substances", 2003.
The ability of the test substance to undergo oxidative self-heating was determined by Test 1 of the Modified Bowes-Cameron Cage test. The test substance was exposed to air at temperatures of 140 °C using a temperature controlled laboratory oven, cubic stainless steel wire sample containers of 100 mm wide, NiCr/Ni thermocouples and a temperature recording device.
A sample container with dimensions of 10 x 10 x 10 cm and a mesh size of 0.053 mm was filled with 305.6 g of the test substance. The container was housed in a stainless steel container cover of 11 x 11 x 11 cm with a mesh size of 0.60 mm.
One thermocouple was placed at the centre of the sample container. To avoid the effect of air circulation the sample container was installed in a stainless steel cage of 15 x 15 x 25 cm with a mesh size of 0.60 mm. The sample container was placed in the centre of the oven. The other thermocouple was placed between the sample container and the wall of the oven.
The oven temperature was raised to 140 °C ± 2 °C and kept for 24 hours. The temperature of the sample and the oven were recorded with time intervals of 30 minutes. After the experiment, the sample was cooled and the consistency of the test substance was determined.
Results
No exothermic effect of the test substance was observed. It demonstrated that the test substance is "not a self-heating substance". According to the guideline, no further testing was required.
After the experiment, the test substance had turned into a charred residue, the volume of the test substance had decreased significantly. It indicated that the test substance had been molten, decomposed and/or reacted during the experiment.
Conclusion
The self-heating temperature of Lowinox® AH25 was determined was determined by Test 1 of the Modified Bowes-Cameron Cage test.
Based on the results obtained, the test substance is considered "not a self-heating substance".
Reference
No exothermic effect of the test substance was observed. It demonstrated that the test substance is “not a self-heating substance”. According to the guideline, no further testing was required.
After the experiment, the test substance had turned into a charred residue, and the volume of the test substance had decreased significantly. It indicated that the test substance had been molten, decomposed and/or reacted during the experiment.
Description of key information
The self-heating temperature of Lowinox® AH25 was determined by Test 1 of the Modified Bowes-Cameron Cage test. In absence of an exothermic effect, the test substance is considered “not a self-heating substance”.
Key value for chemical safety assessment
Additional information
No exothermic effect of the test substance was observed. It demonstrated that the test substance is "not a self-heating substance". According to the guideline, no further testing was required.
After the experiment, the test substance had turned into a charred residue, the volume of the test substance had decreased significantly. It indicated that the test substance had been molten, decomposed and/or reacted during the experiment.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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