(1-methylethylidene)di-4,1-phenylenetetraphenyl diphosphate

Melting point / freezing point

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: see 'Remark'

Remarks:

The data comes from a report of NATIONAL INDUSTRIAL CHEMICALS NOTIFICATION AND ASSESSMENT SCHEME (NICNAS), which is administered by the National Occupational Health and Safety Commission (NOHSC) of Australian Commission. Also the physico-chemical properties were determined using OECD test methods.

Data source

Reference

Reference Type:

review article or handbook

Title:

Phosphoric acid, (1-methylethylidene) di-4,1-phenylene tetraphenyl ester (Fyrolflex BDP)

Author:

National Occupational Health and Safety Commission (Australia)

Year:

2000

Bibliographic source:

In:NATIONAL INDUSTRIAL CHEMICALS NOTIFICATION AND ASSESSMENT SCHEME

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Principles of method if other than guideline:

no data

GLP compliance:

not specified

Type of method:

thermal analysis

Remarks:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

425-220-8

EC Name:

-

Cas Number:

5945-33-5

Molecular formula:

C39H34O8P2

IUPAC Name:

(1-methylethylidene)di-4,1-phenylenetetraphenyl diphosphate

Results and discussion

Melting / freezing point

Melting / freezing pt.:

>= 41.3 - <= 68.6 °C

Any other information on results incl. tables

The melting point was determined by Hogg A S (1997) using differential scanning calorimetry, and two distinct peaks were observed in the trace between 41.3 and 68.6°C. It is probable that one peak corresponds to melting of the BDP, while the other corresponds to melting of the impurities.