Registration Dossier
Registration Dossier
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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.
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EC number: 231-545-4 | CAS number: 7631-86-9
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: Secondary literature / handbook data
- Principles of method if other than guideline:
- Literature data
- GLP compliance:
- no
- Melting / freezing pt.:
- 1 710 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: NTIS 1979 / NIOSH 2001
- Melting / freezing pt.:
- 3 110 °F
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: NIOSH 2001 (cited from HSDB 2008): = 1710 °C
- Melting / freezing pt.:
- >= 1 716 - <= 1 736 °C
- Atm. press.:
- 1 033 hPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: Römpp 1995
- Conclusions:
- Melting point is at 1710°C at minimum.
Referenceopen allclose all
MELTING POINT: 3110 deg F [NIOSH. NIOSH Pocket Guide to Chemical Hazards & Other Databases. U.S. Department of Health & Human Services, Public Health Service, Center for Disease Control & Prevention. DHHS (NIOSH) Publication No. 2001-145 (CD-ROM) August 2001., p. ]**PEER REVIEWED**
Reference:
Hazardous Substances Data Bank (HSDB),
a database of the National Library of Medicine's TOXNET system
(http://toxnet.nlm.nih.gov) on June 27, 2008.
Note: 3110 °F = 1710 °C
Description of key information
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.
