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

Boiling point

Administrative data

Endpoint:

boiling 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 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)

Remarks:

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

Type of method:

differential scanning calorimetry

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: Liquid, yellowish
- Concentration of oligomers: >=99.0%
- Purity test date: 21 January 2010
- Lot/batch No.: MK 12/048
- Expiration date of the lot/batch: January 27, 2010
- Stability under test conditions: Not reported
- Storage condition of test material: In the refrigerator at about 5 °C

Results and discussion

Boiling point

Boiling pt.:

>= 293 - <= 311 °C

Atm. press.:

>= 99.4 - <= 100.3 kPa

Decomposition:

no

Any other information on results incl. tables

The DSC-curve of the preliminary test (heating rate of 20 °C/min from 25 °C to 400 °C) is shown in the

attached Figure 1(SEE ATT1). In the DSC of the preliminary test an endothermic heat effect, the boiling,

was detected at about 265 °C. After the experiment, the sample had lost 39% of its mass

and the colour of the sample was amber colored and foamed.

In order to confirm the results found during the DSC-preliminary test, a second pre-test

was performed within the temperature range of 25 °C and 400 °C (heating rate 20 °C/min)

using the capillary method and visual judgement. This test showed that the test item

started boiling at about 263 °C under the condition s described above.

In order to determine the boiling point more precisely, further DSC-runs were recorded between 200 °C and

370 °C with a heating rate of 5 °C/min. During thes e three independent main tests a broad endothermic heat

effect was observed with an onset point of 293.4 °C , 309.9 °C and 311.1 °C, respectively. The sample l ost

between 32% and 36% of its mass during these runs. After the measurements an amber colored foamed

residue remained.The DSC curve of the first main test is given in the attached Figure 2 (SEE ATT 2).

Table, Determination of the Boiling Point of the test substance (summary)
.	Heating Range (°C)	Heating Rate (°C/min)	Boiling Point
			(°C)	(K)
1st Main Test	200-370	5	293.4	566.6
2nd Main Test	200-370	5	309.9	583.1
3rd Main Test	200-370	5	311.1	584.3
Boiling range:			293-311	567-584

According to the Guideline, the estimated accuracy is±0.5 K (up to 600 K) and±2.0 K (up

to 1273 K).

The temperature range obtained from the onset point of three independent main tests is

most probably due to the composition of the test item (mixture of several compounds).

The tabulated values represent rounded results obtained by calculation using the exact

raw data.

Applicant's summary and conclusion

Conclusions:

The boiling range was determined in three independent main tests to be
293 °C – 311 °C,
which is equal to 567 K – 584 K
based on the respective onset of the endothermic heat effect.
The temperature range obtained from the onset point of three independent main tests is most probably due
to the composition of the test item (mixture of several compounds).

Executive summary:

The boiling range of MTDID 8191 was determined to be between 293 °C a nd 311 °C

which is equal to 567 K and 584 K using thermal analysis (DSC).

The temperature range obtained from the onset point of three independent main tests is

most probably due to the composition of the test item (mixture of several compounds).

The atmospheric pressure during the measurements was 99.4, 99.6 and 100.3 kPa.