Registration Dossier
Registration Dossier
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EC number: 219-210-0 | CAS number: 2387-03-3
Melting point / freezing point
Administrative data
Link to relevant study record(s)
Description of key information
The melting point determination of2-hydroxynaphthalene-1-carbaldehyde [(2-hydroxy-1-naphthyl) methylene]hydrazone(CAS No. 2387-03-3) was done following OECD Guideline 102 and using metal block/capillary apparatus. The test item showed colour change from yellow to orange and then to red after 200°C. It started vaporising from 302.5°C and started moving upwards in capillary till 315°C. It condensed at the upper part of the capillary that was outside the metal block apparatus.The test was conducted in replicates and mean sublimation temperature range was found to be 302.5°C -315°C at 981.8hPa
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 301 °C
Additional information
The melting point determination of2-hydroxynaphthalene-1-carbaldehyde [(2-hydroxy-1-naphthyl) methylene]hydrazone(CAS No. 2387-03-3) was done following OECD Guideline 102 and using metal block/capillary apparatus.The test item showed colour change from yellow to orange and then to red after 200°C. It started vaporising from 302.5°C and started moving upwards in capillary till 315°C. It condensed at the upper part of the capillary that was outside the metal block apparatus.The test was conducted in replicates and mean sublimation temperature range was found to be302.5°C -315°Cat981.8hPa
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