Custom Red #2

Boiling point

Administrative data

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

10 February 2009 - 08 May 2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: This study has been performed according to OECD and EC guidelines and according to GLP principles.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Report date:

2009

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Details on test material:

- Name of test material (as cited in study report): Custom Red #2
- Substance type: violet powder
- Physical state: solid
- Purity test date: no data
- Lot/batch No.: C50APR0805D
- Expiration date of the lot/batch: 08 January 2011
- Stability under storage conditions: stable
- Storage condition of test material: at room temperature in the dark

Results and discussion

Boiling point

Atm. press.:

101.3 kPa

Decomposition:

yes

Decomp. temp.:

> 325 °C

Remarks on result:

other: boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started.

Any other information on results incl. tables

Preliminary test: From approximately 350°C upwards the weight of the sample decreased significantly. At 436°C, the sample weight had decreased by 25%. After the experiment, a black molten residue (original colour: violet) remained in the sample container. The change of the colour indicated reaction and/or decomposition of the test substance.   Main study: Starting at 325°C a relatively broad endothermic effect was found. Reaction and/or decomposition of the test substance caused most likely this effect. After the experiment, a black molten residue remained in the sample container.

Applicant's summary and conclusion

Conclusions:

Reaction and/or decomposition of the test substance were observed above 325°C (598K): boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Therefore, the test substance has no boiling temperature.