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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 200-828-4 | CAS number: 74-99-7
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- not applicable
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
Data source
Referenceopen allclose all
- Reference Type:
- review article or handbook
- Title:
- CRC Handbook of Chemistry and Physics
- Author:
- Lide, D.R. (Editor)
- Year:
- 2 010
- Bibliographic source:
- 90th Edition CD-ROM Version, CRC Press Boca Raton, Florida, USA
- Reference Type:
- other: secondary source
- Title:
- TOXNET
- Author:
- HSDB database
- Year:
- 2 007
- Bibliographic source:
- https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/f?./temp/~RJJtJ1:3
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- No details on method are provided in the handbook.
- GLP compliance:
- not specified
- Type of method:
- other: not specified
Test material
- Reference substance name:
- Propyne
- EC Number:
- 200-828-4
- EC Name:
- Propyne
- Cas Number:
- 74-99-7
- Molecular formula:
- C3H4
- IUPAC Name:
- prop-1-yne
- Test material form:
- gas
Constituent 1
- Specific details on test material used for the study:
- no details given
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- -102.7 °C
- Remarks on result:
- other: Atm. press. not specified
Applicant's summary and conclusion
- Conclusions:
- Melting point of 1-Propyne = -102.7 °C
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.
