tri{[(2S)-1-ethoxy-1-oxopropan-2-yl]oxy}(vinyl)silane

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Remarks:

freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 18 February 2016 to 30 March 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

method to determine freezing temperature

Remarks:

ethod of crystallization tube in freezing mixture ice/acetone

Specific details on test material used for the study:

- Expiration date of the lot/batch: 13.10.2017
- Analytical purity: 92%

Key result

Melting / freezing pt.:

< -30.2 °C

Remarks on result:

other: The crystallization was not observed during all measurements

During the test, the temperature of samples decreased at a constant rate, for measurement No. 1 to the temperature of -30.4 °C and for measurement No. 2 to the temperature of -30.2°C. The crystallization was not observed during all measurements.

According to Guidance on information requirements and chemical safety assessment Chapter R.7a: Endpoint specific guidance, May 2008, Guidance for the implementation of REACH the study does not need to be conducted below a lower limit of –20 °C.

Measurement of the freezing point of Propionic acid,,2’’ - [(vinylsilylidyne) trioxy] tri-, triethyl ester

Measurement I		Measurement II
Time [min]	Temperature [˚C]	Time [min]	Temperature [˚C]
0.0	0.0	0.0	0.1
1.0	-1.0	1.0	-1.2
2.0	-2.0	2.0	-2.1
3.0	-2.8	3.0	-2.9
4.0	-3.5	4.0	-3.6
5.0	-4.0	5.0	-4.1
6.0	-4.9	6.0	-4.7
7.0	-5.5	7.0	-5.3
8.0	-6.0	8.0	-5.9
9.0	-6.5	9.0	-6.4
10.0	-7.3	10.0	-7.2
11.0	-8.1	11.0	-7.9
12.0	-8.7	12.0	-8.6
13.0	-9.3	13.0	-9.1
14.0	-9.8	14.0	-9.7
15.0	-10.2	15.0	-10.6
16.0	-10.8	16.0	-11.2
17.0	-11.4	17.0	-11.9
18.0	-11.8	18.0	-12.7
19.0	-12.6	19.0	-13.1
20.0	-13.3	20.0	-13.8
21.0	-13.9	21.0	-14.3
22.0	-14.4	22.0	-14.8
23.0	-14.9	23.0	-15.5
24.0	-15.4	24.0	-16.1
25.0	-16.0	25.0	-16.4
26.0	-16.5	26.0	-16.8
27.0	-17.1	27.0	-17.0
28.0	-17.5	28.0	-17.6
29.0	-17.8	29.0	-18.5
30.0	-18.3	30.0	-19.1
31.0	-18.8	31.0	-20.0
32.0	-19.4	32.0	-20.6
33.0	-20.0	33.0	-21.2
34.0	-20.6	34.0	-21.8
35.0	-21.2	35.0	-22.3
36.0	-21.6	36.0	-22.6
37.0	-21.9	37.0	-23.1
38.0	-22.5	38.0	-23.8
39.0	-22.9	39.0	-24.3
40.0	-23.3	40.0	-24.8
41.0	-23.7	41.0	-25.2
42.0	-24.0	42.0	-25.5
43.0	-24.7	43.0	-26.2
44.0	-25.1	44.0	-26.6
45.0	-25.6	45.0	-27.0
46.0	-26.1	46.0	-27.4
47.0	-26.6	47.0	-27.9
47.5	-	47.5	-28.6
48.0	-27.2	48.0	-29.1
49.0	-27.4	49.0	-29.5
50.0	-27.8	50.0	-29.8
51.0	-28.4	51.0	-30.2
52.0	-28.8	52.0	-
53.0	-29.5	53.0	-
54.0	-30.0	54.0	-
55.0	-30.4	55.0	-

Conclusions:

The freezing point (crystallization) of the test substance was not visually observed up to -30.4 ºC.

Executive summary:

The freezing point of the test substance was determined in accordance with the OECD Guideline 102 with GLP. The method of crystalization tube in freezing mixture ice/acetone was used. The freezing point of the test substance was not visually observed up to -30.4 ºC.

Description of key information

Key study: According to OECD Guideline 102. GLP study. The freezing point of the test substance was not visually observed up to -30.4 ºC.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-30.4 °C