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EC number: 239-825-8 | CAS number: 15733-22-9
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes
- Type of method:
- thermal analysis
- Remarks:
- DTA, additionally a thermogravimetry was performed.
- Remarks on result:
- other: no melting point detectable
- Executive summary:
In a differential thermal analysis study according to EU Method A.1 no melting point was detectable for the sodium p-chloro-m-cresolate (hydrated form). The measured endothermic effects at 60 °C - 125 °C are caused by the elimination of crystal water.
In a thermogravimetry test a mass loss of 26.4% was detected which equals 3.3 mol crystal water.
Reference
No melting point is detectable for the test substance. The measured endothermic effects at 60 °C - 125 °C are caused by the elimination of crystal water.
In the thermogravimetry test with heating rate 10 K/min in the range 30 °C to 300 °C a mass loss of 26.4% was detected which equals 3.3 mol crystal water. (1. step 30 °C - 97 °C: 5.3%, 2. step 97 °C - 191 °C: 21.1%).
Description of key information
no melting point detectable in DTA
endothermic effects at 60 °C - 125 °C
(EU Test A.1)
Key value for chemical safety assessment
Additional information
Additionally, in a thermogravimetry test with heating rate 10 K/min in the range 30 °C to 300 °C a mass loss of 26.4% was detected which equals 3.3 mol crystal water.
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