2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, coupled with 3-aminophenol, diazotized 5-amino-2-[(4-aminophenyl)amino]benzenesulfonic acid and diazotized benzenamine, sodium salts

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

August 30, 1991

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

adopted in 1981

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Principles of method if other than guideline:

Internal procedure: SOP FO 3.31-4.1

GLP compliance:

yes

Type of method:

capillary method

Melting / freezing pt.:

> 300 °C

Conclusions:

The melting point of the substance is above 573 K (300 °C).

Executive summary:

The melting point of the substance was assessed according to the OECD Guidelines 102, EU Method A.1. and the internal procedure SOP FO 3.31 - 4.1.

No melting point was detected below 573 K (300 °C), after the application of the capillary method in liquid bath.

Conclusion

The melting point of the substance is above 573 K (300 °C).

Description of key information

Above 300 °C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

300 °C

Additional information

OECD Guidelines 102, EU Method A.1 - Capillary analysis