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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Discrepancy between documented test parameters and standard methods, but scientifically acceptable

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1990
Report date:
1990

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Principles of method if other than guideline:
Method: other: measured with differential scanning calorimeter DSC-7 of Perkin-Elmer
GLP compliance:
no
Type of method:
differential scanning calorimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
Triphenylphosphine oxide
EC Number:
212-338-8
EC Name:
Triphenylphosphine oxide
Cas Number:
791-28-6
Molecular formula:
C18H15OP
IUPAC Name:
triphenylphosphine oxide
Details on test material:
- Name of test material (as cited in study report): Triphenylphosphine oxide
- Analytical purity: 99.343 - 99.853 mol %

- Name of test material (as cited in study report): Triphenylphosphine oxide
- Analytical purity: 99.343 - 99.853 mol %

- Name of test material (as cited in study report): Triphenylphosphine oxide
- Analytical purity: 99.343 - 99.853 mol %

Results and discussion

Melting / freezing point
Melting / freezing pt.:
155.8 - 157.4 °C

Applicant's summary and conclusion