4,4'-sulfonylbisphenol, polymer with ammonium chloride(NH4Cl), pentachlorophosphorane and phenol

Boiling point

Administrative data

Endpoint:

boiling point

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is a solid which decomposes before boiling

Cross-reference

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2 February 2001

Reliability:

1 (reliable without restriction)

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

1992

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

1995

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

> 97 - < 98 °C

Decomposition:

yes

Decomp. temp.:

> 200 °C

Experiment 1

A small endothermic peak between 41 and 68°C. A large endothermic peak between 85 and 122°C (maximum at 107°C and extrapolated onset temperature at 97°C); this effect is assumed to be caused by melting of the test substance. At > 200°C a small endothermic effect was observed. After the experiment the sample appeared to have been molten and had a yellow colour. Mass loss: 2%. DSC curve: see illustration.

Experiment 2

A small endothermic peak between 40 and 65°C. No changes in appearance and weight. 

Experiment 3

Two endothermic peaks: a small one between 40 and 65°C and a large one between 84 and 113°C. Extrapolated onset temperature of the large peak:98°C. After the experiment the sample had molten; the molten sample was colourless. No significant change in weight.

Experiment 4

Run 1: small endothermic effect  between 39 and 65°C.

Run 2: large endothermic peak  between 73 and 122°C; extrapolated onset temperature: 97°C. Above about 244°C a small endothermic effect was observed. After the experiment the sample appeared to have been molten and had a yellow-brown colour. Mass loss: 0.5%.

Conclusions:

The melting temperature of the substance was determined to be 97°C.

Executive summary:

Differential Scanning Calorimetry was performed (EC A.1 and OECD 102). DSC showed a small endothermic effect at < 70°C, a large endothermic melting effect between about 73-123°C and a small endothermic effect starting at about 200°C. The melting temperature (extrapolated onset temperature of the meling peak) was determined in triplicate obtaining a mean value of 97°C.  Reaction and/or decomposition of the substance occurs from 200°C upwards.