Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 205-288-3 | CAS number: 137-30-4
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
- Study period:
- The experimental phase was undertaken between 29.09.1995 and 07.12.1995
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- capillary method
- Melting / freezing pt.:
- >= 251 - <= 252.5 °C
- Atm. press.:
- ca. 1 013 hPa
- 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:
- comparable to guideline study
- Principles of method if other than guideline:
- Differential scanning calorimetry method is used.
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- >= 252.16 - <= 252.73 °C
- Atm. press.:
- ca. 1 002.3 mBar
- Decomposition:
- no
Referenceopen allclose all
The colour changed at 238 °C.
Pre-test following Siwoloboff
Observations |
Temperatures in °C |
Melting process |
Since 250 |
Yellow turbid liquid, opaque. Getting slightly darker, not homogeneous, seems to be two phasis |
260 |
Bubbles on the surface |
283 |
Strong boiling visible on the surface, heating switched off. Substance is reddish-brown and turbid |
289.6 |
After cooling down the test substance solidified as brown mass, on the top darker.
Security Pre-test for the DSC instrument
The crucible was visually unchanged after reaching a temperature of 300 °C and after reaching the temperature of 400 °C around the perforation the test substance exited. After reaching the temperature of 450 °C no further changes were observed, the exited test substance was turbid and pale brown. The weight was recorded with 45.97 mg.
The DSC measurement of indium after calibration met the validity criteria.
Result
Temperature [°C] |
Energy [J/g] / Heat flow [mW] |
|
Melting Point (onset) |
252.55 (first determination) 252.16 (second determination) 252.73 (third determination) |
108.02 104.14 114.12 |
Two endothermic events were detected.
The first event is stated as the melting point and is given in range of:
252.16 °C to 252.73 °C (525.31K to 525.88 K).
Description of key information
251-252 .73°C (EU A.1, capillary method and DSC method)
Key value for chemical safety assessment
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
