Reaction product of 4-aminophenol with 2-ethyl-6-methylbenzenamine, sodium polysulfide and sodium metabisulfite

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-10-25 - 2018-04-23

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

1995

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Version / remarks:

2008

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7220 (Boiling Point / Boiling Range)

Version / remarks:

1996

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Test material

Test material information

1

Reference substance name:

Reaction product of 4-​aminophenol with 2-​ethyl-​6-​methylbenzenamine, sodium polysulfide and sodium metabisulfite

EC Number:

600-520-3

Cas Number:

1040874-53-0

Molecular formula:

not applicable

IUPAC Name:

Reaction product of 4-​aminophenol with 2-​ethyl-​6-​methylbenzenamine, sodium polysulfide and sodium metabisulfite

Test material form:

solid: particulate/powder

Details on test material:

Test item: Blue TBR
Appearance: black bluish powder
CAS No: 1040874-53-0

Results and discussion

Boiling point

Key result

Atm. press.:

>= 992.3 - <= 992.9 hPa

Decomposition:

yes

Decomp. temp.:

ca. 110 °C

Remarks on result:

other:

Remarks:

No boiling point up to decomposition

Any other information on results incl. tables

Melting and Boiling Point (DSC)

The test item showed two exothermic effects in the temperature ranges of 120 – 210 °C and 220 – 290 °C with an overall decomposition energy of approx. -50 J/g. An endothermic effect can be observed in the temperature range of 300 – 360 °C. No further thermal effects could be observed up to the maximum test temperature of 500 °C.

Table 1:    Results of the DSC-measurements

No.	Sample weight / mg	Onset of Effect / °C	Range of effect / °C	Weight loss / mg	Atmospheric pressure / hPa	Remark
PN14802	17.05	--- --- ---	130 – 210 (exo) 220 – 280 (exo) 300 – 360 (endo)	5.82	992.9
PN14803	16.44	--- --- ---	130 – 210 (exo) 220 – 280 (exo) 310 – 330 (endo)	5.21	992.9
PN14816	10.18	--- --- ---	120 – 210 (exo) 220 – 290 (exo) 300 – 360 (endo)	3.25	992.3

During the heating phase no endothermic effects were detected up to the decomposition of the test item starting at a temperature of approx. 120 °C. Due to this result the test item has no melting and boiling point up to its decomposition starting at a temperature of approx. 120 °C.

Thermal stability (DSC)

In the temperature ranges of 110 – 260 °C and 260 – 360 °C two exothermic effects can be observed, with a maximum overall decomposition energy of approximately -150 J/g.

Table 2:    Results of the DSC-measurements

No.	Crucible material	Sample weight / mg	Start of effect / °C	Energy / J/g	Remark
PN14839	Glass	5.61	110 260	-80 (exothermic) -20 (exothermic)
PN14616	Gold plated stainless steel	10.43	150 300	-120 (exothermic) -30 (exothermic)

Applicant's summary and conclusion

Conclusions:

The test item Blue TBR has no boiling point up to up to its decomposition starting at a temperature of approx. 110 °C as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2., OECD Test Guideline 103 (1995) and EPA OCSPP 830.7220 (1996).

Executive summary:

Summary

The test item Blue TBR has no boiling point up to up to its decomposition starting at a temperature of approx. 110 °C as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2., OECD Test Guideline 103 (1995) and EPA OCSPP 830.7220 (1996).