Reaction products of 1,6-diisocyanatohexane, oligomers with 2-[(2-methacryloyl)oxy]ethyl 6-hydoxyhexanoate and 2-hydroxyethyl methacrylate

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

05-10-2009/16-10-2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.

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 102 (Melting point / Melting Range)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Date of Signature on GLP certificate: 12-11-2008

Type of method:

other: visual judgement

Test material

Reference

Name:

Unnamed

Type:

Constituent

Type:

Constituent

Details on test material:

- Name of test material (as cited in study report): MTDID 8191
- Substance type: UVCB material
- Physical state: Yellowish viscous liquid
- Concentration of oligomers: ≥99.0%
- Purity test date: 21 January 2010
- Lot/batch no.: MK 12/048
- Expiration date of the lot/batch: 27-Jan-2010
- Stability under test conditions: Not reported
- Storage condition of test material: In the refrigerator at about 4 °C

Results and discussion

Melting / freezing point

Melting / freezing pt.:

-35.3 °C

Atm. press.:

99.4 - 100.3 kPa

Decomposition:

no

Remarks on result:

other: Atm. pressure 99.4, 99.6, and 100.3 kPa

Any other information on results incl. tables

A preliminary test was performed to check the approximate freezing temperature of

MTDID 8191. The test item was stored 21 hours at -20 °C in a freezer. As the sample was

not frozen after this time the freezing temperature of MTDID 8191 is below -20 °C.

During the main tests, about 5 mL of the test item placed in a small test tube were cooled

down from room temperature to about -36 °C using a dry ice and acetone mixture.

At –35.5 °C (1st test) and –35.0 °C (2nd test), res pectively, the test item was frozen by

visual judgement.

Table, Determination of the Freezing Point of MTDID 8191 (Summary)
	Freezing Point
	[°C]	[K]
Preliminary test	Below -20 °C	Below 253.2
1^stmain test	-35.5	237.7
2^ndmain test	-35	238.2
Mean value	-35.3	238
The mean freezing point was calculated from the bold values.
According to the Guideline, the estimated accuracy is±0.5 K.

Applicant's summary and conclusion

Conclusions:

The freezing point of MTDID 8191 was determined to be -35.3 °C, which is equal to 238.0 K.

Executive summary:

The freezing point of MTDID 8191 was determined to be -35.3 °C which i s equal to 238.0 K by visual

judgement.