Cuprate(4-), [C-(aminosulfonyl)-C-[[[2-[[4-chloro-6-[(2,5-disulfophenyl)amino]-1,3,5-triazin-2-yl]amino]ethyl]amino]sulfonyl]-29H,31H-phthalocyanine-C,C-disulfonato(6-)-N29,N30,N31,N32]-, 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:

18 May 1993 and 1 October 1993

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

Method A1 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC)

Deviations:

yes

Remarks:

See "Any other information" for details

GLP compliance:

yes (incl. QA statement)

Type of method:

capillary method

Specific details on test material used for the study:

No further details specified in the study report.

Key result

Melting / freezing pt.:

> 643 K

Decomposition:

no

Sublimation:

no

Remarks on result:

other: Atm. press. not specified in the study report.

The temperatures detailed below are those recorded in the liquid bath (T_D), above the liquid bath (T_E) and corrected temperature (T):

 

Test 1

T (K)	TD (K)	TE (K)	Observations
303	303	305	The capillary tube was inserted. The test material was a dark blue fine powder.
430	427	359	No change in the appearance of the test material.
557	553	482	No change in the appearance of the test material.
589	583	497	The test material appeared to turn a slightly darker blue colour.
618	611	516	No change in the appearance of the test material.
620	613	516	No change in the appearance of the test material.
640	635	571	No change in the appearance of the test material.

 

Test 2

T (K)	TD (K)	TE (K)	Observations
302	302	302	The capillary tube was inserted. The test material was a dark blue fine powder.
353	352	336	No change in the appearance of the test material.
404	403	367	No change in the appearance of the test material.
446	444	397	No change in the appearance of the test material.
493	489	405	No change in the appearance of the test material.
542	535	417	No change in the appearance of the test material.
558	552	460	No change in the appearance of the test material.
604	597	490	No change in the appearance of the test material.
643	635	529	No change in the appearance of the test material.

 

The temperatures were calculated using the following equation:

T = T_D+ 0.0016 (T_D– T_E)n

 

Where:

T = corrected temperature (K)

T_D= temperature reading of thermometer in the liquid bath (K)

T_E= temperature reading of thermometer positioned above the liquid bath (K)

n = number of graduations of mercury thread of thermometer TD at emergent stem

 

n was calculated as follows:

n = T_D+ [(d x r)/l] – 273.15

 

Where:

T_D= temperature reading of thermometer in the liquid bath (K)

d = distance from immersion point to 0 °C mark on thermometer (45 mm in Determination 1, 44 mm in Determination 2)

r = temperature range of thermometer (360 °C)

l = length of temperature scale on thermometer (177 mm in determination 1, 179 mm in Determination 2)

Conclusions:

The melting temperature of JPR BLUE 100 (Lot Number 303001} was determined to be greater than 643 K.

Executive summary:

A number of general physico-chemical properties of the compound JPR BLUE 100 (Lot Number 303001) have been determined at the request of the sponsor.

 

The melting point study complied with Method A1 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).

 

The determination was carried out using the melting point apparatus with a liquid bath.

 

The melting temperature of JPR BLUE 100 (Lot Number 303001) was determined to be greater than 643 K.

Description of key information

The melting temperature of JPR BLUE 100 (Lot Number 303001) was determined to be greater than 643 K.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

643 K

Additional information

The melting point study complied with Method A1 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC). 

The determination was carried out using the melting point apparatus with a liquid bath.

The melting temperature of JPR BLUE 100 (Lot Number 303001) was determined to be greater than 643 K.