Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28 January - 25 February 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Modern GLP study conform to OECD TG No.: 102 and OPPTS 830.7200. No deviations from the guidlines were reported.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
capillary method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Batch No. RW 2013-10-22
Expiry date 22 October 2018

Results and discussion

Melting / freezing point
Melting / freezing pt.:
272 °C
Decomposition:
yes
Decomp. temp.:
272 °C

Any other information on results incl. tables

Mean of the detected melting temperature values is 272 °C (545 K). At the end of the test the test item blackened and moved to the upper part of the capillary. Based on this observation and the high standard deviation of the replicate measurements the 272 °C is considered to be a decomposition temperature.

Measured temperatures corresponding to the decomposition (temp. 1./2./3.) of Yellow LF 6881 (three experiments (I, II, III) with three parallel samples each (1, 2, 3)

Sample

Temperature (°C)

Mean (°C)

Standard Deviation

Confidence interval (95 %)

I /1

273.3

271.7

2.40

1.84

I /2

270.1

I /3

276.2

II /1

272.0

II /2

267.4

II /3

270.7

III /1

271.1

III /2

272.0

III /3

272.4

 

Applicant's summary and conclusion

Conclusions:
Mean of the detected melting temperature values is 272 °C (545 K). At the end of the test the test item blackened and moved to the upper part of the capillary. Based on this observation and the high standard deviation of the replicate measurements the 272 °C is considered to be a decomposition temperature.
Executive summary:

Melting point of Yellow LF 6881 is 272 °C (545 K) that is considered to be also the decomposition temperature.