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EC number: 251-068-5 | CAS number: 32503-27-8
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:
- 2017-01-17 – 2017-01-17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Experimental result performed using standard methods of analysis
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Principles of method if other than guideline:
- The melting point determination of Tetrabutylammonium hydrogen sulphate (CAS No. 32503-27-8 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block.
- GLP compliance:
- no
- Type of method:
- other: Capillary/metal block
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): Tetrabutylammonium hydrogen sulphate
- Molecular formula :C16-H36-N.H-O4-S
- Molecular weight (if other than submission substance): 339.53
- Smiles notation: C([N+](CCCC)(CCCC)CCCC)CCC.S([O-])(=O)(=O)O
- InChl : 1S/C16H36N.H2O4S/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;1-5(2,3)4/h5-16H2,1-4H3;(H2,1,2,3,4)/q+1;/p-1
- Substance type: Organic
- Physical state: Solid - Key result
- Melting / freezing pt.:
- >= 165.3 - <= 167.5 °C
- Atm. press.:
- 977.6 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point determination of Tetrabutylammonium hydrogen sulphate (CAS No. 32503-27-8) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 165.3 °C-167.5°C at 977.6hPa
- Executive summary:
The melting point determination of Tetrabutylammonium hydrogen sulphate (CAS No. 32503-27-8) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 165.3 °C-167.5°C at 977.6hPa
Reference
Description of key information
The melting point determination of Tetrabutylammonium hydrogen sulphate (CAS No. 32503-27-8) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 165.3 °C-167.5°C at 977.6hPa
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 165.3 °C
Additional information
The melting point determination of Tetrabutylammonium hydrogen sulphate (CAS No. 32503-27-8) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 165.3 °C-167.5°C at 977.6hPa.
Other supporting study from authoritative database suggests that the melting point of chemical Tetrabutylammonium hydrogen sulphate was reported to be in the range of 170-171 °C.
As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of melting point as 165.3 °C-167.5°C at 977.6hP
,thus considered as key study for the chemical safety assessment.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.
