Registration Dossier
Registration Dossier
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EC number: 206-986-0 | CAS number: 407-41-0
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is a solid which decomposes before boiling
Reference
Description of key information
Using a linear heating rate of 10 °C/min with DSC, the melting point of the test item was determined to be in the range of 185 - 190 °C (458 - 463 K). Above 190 °C decomposition of the test item was observed. Therefore, the boiling point could not be determined.
Key value for chemical safety assessment
Additional information
A study (reference 4.2-1) was conducted according to OECD TG 102, Regulation (EC) No 440/2008 method A.1 and EPA OPPTS 830.7200 to determine the melting point of the test item using differential scanning calorimetry. A small amount of test item was weighed into a one-way 40 µL aluminum crucible and sealed with pierced aluminum lid using a capsule presser. Thus prepared capsule was inserted into the furnace of the DSC device and heated from room temperature to 500 °C with 10 °C/min heating rate. As reference sample an empty crucible of the same type was used. In the temperature range of 184 °C to 190 °C, an endothermic effect was observed. The melting point of the test item was determined to be in the range of 185 - 190 °C (458 - 463 K) at atmospheric pressure (1013 hPa). Above 190 °C decomposition of the test item was observed. Therefore, the study is technically not feasible as the boiling point can not be determined due to the decomposition of the test item.
In accordance with column 2 of REACH Annex VII, the boiling point study does not need to be conducted as the substance decompose before boiling.
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