Disodium 2,4-diamino-3-{[4-(ethenylsulfonyl)phenyl]diazenyl}-5-{[4-(ethenylsulfonyl)-2-sulfonatophenyl]diazenyl}benzenesulfonate

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Deviations:

not applicable

Principles of method if other than guideline:

The boiling point of test item was determined by photocell detection using a Mettler Toledo FP 90 Thermo system with FP 81 HT measuring cell.

GLP compliance:

yes

Remarks:

OPPTS 830.7220, OECD 103

Type of method:

photocell detection

Specific details on test material used for the study:

None

Key result

Boiling pt.:

> 285 - < 375 °C

Atm. press.:

> 104.12 - < 104.13 kPa

Decomposition:

yes

Remarks:

300ºC

Decomp. temp.:

> 300 - < 375 °C

The boiling point of the test item was not achieved as the test item underwent decomposition by changing its color to black. The test item started to degrade at temperatures greater than 285ºC and appeared to be completely degraded by 300ºC. During the experimental period the barometric pressure was 104.12 kPa.

TABLE 1.    Determination of Boiling Point of Test Item(Replication 2)

Temperature (°C)		Color Observation / change
270		Reddish Brown
275		Brown
280		Brown
285		Dark Brown
290		Dark Brown
295		Darkish Brown
300		Black
305		Black
310		Black
315		Black
320		Black
325		Black
330		Black
335		Black
340		Black
345		Black
350		Black
355		Black
360		Black
365		Black
370		Black
375		Black

Conclusions:

The boiling point of the test item was not achieved as the test item underwent decomposition by changing its color to black. The test item was completely degraded by 300ºC.

Executive summary:

The determination of boiling point of test item was carried out in accordance with OPPTS 830.7220 and OECD 103. The boiling point of test item was not achieved as the test item underwent decomposition by changing its color to black. The test item was completely degraded by 300ºC.

Description of key information

The test item was completely degraded by 300ºC.
 

Additional information

The determination of boiling point of test item was carried out in accordance with OPPTS 830.7220 and OECD 103.

The boiling point of test item was not achieved as the test item underwent decomposition by changing its color to black.

The test item was completely degraded by 300ºC.