Registration Dossier

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-01-07 – 2017-01-09
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental result 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 Test item Potassium hydrogen phthalate (CAS No. 877- 24-7 ) 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): Hydrogen potassium phthalate
- Molecular formula : C8H5O4K
- Molecular weight : 204.221 g/mol
- Smiles notation : c1(c(cccc1)C(=O)[O-])C(O)=O.[K+]
- InChl : 1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
- Substance type:Organic
- Physical state:Solid
Key result
Melting / freezing pt.:
>= 301.7 - <= 303.7 °C
Atm. press.:
974.9 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: no other details available
Conclusions:
The melting point determination of Potassium hydrogen phthalate (CAS No. 877-24-7) 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 301.7°C -303.7°C at 974.9hPa.
Executive summary:

The melting point determination of Potassium hydrogen phthalate (CAS No. 877-24-7) 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 301.7°C -303.7°C at 974.9hPa.

Description of key information

The melting point determination of Potassium hydrogen phthalate (CAS No. 877-24-7) 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 301.7°C -303.7°C at 974.9hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
295 °C

Additional information

The melting point determination of Potassium hydrogen phthalate (CAS No. 877-24-7) 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 301.7°C -303.7°C at 974.9hPa.