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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-06-13 to 2012-07-31
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
< -20 °C
Atm. press.:
1 013 hPa

Results

Definitive Testing

Cooling data for Determinations 1 and 2 are shown in the Table 1 and Table 2:

table 1: Determination 1

 Time{s)  Temperature (K)  Time{s)  Temperature (K)
 0  295  690  266
 30  294  720  265
 60  292  750  264
 90  291  780  263
 120  289  810  262
 150  287  840  261
 180  285  870  260
 210  284  900  258
 240  283  930  258
 270  282  960  257
 300  281  990  256
 330  280  1020  256
 360  279  1050  256
 390  277  1080  255
 420  276  1110  254
 450  275  1140  254
 480  273  1170  253
 510  272  1200  253
 540  270  1230  253
 570  269  1260  253
600  268  1290  253
 630  267  1320  252
 660  267    

Observations: The test item did not change in appearance during testing.

Table 2: Determination 2

Time{s)  Temperature (K)  Time{s)  Temperature (K)
 0  294  630  268
 30  292  660  267
 60  290  690  266
 90  288  720  265
 120  287  750  264
 150  285  780  263
 180  283  810  262
 210  282  840  261
 240  281  870  260
 270  280  900  259
 300  279  930  258
 330  278  960  257
 360  278  990  257
 390  276  1020  256
 420  275  1050  255
 450  274  1080  254
 480  273  1110  254
 510  272  1140  253
 540  271  1170  253
 570  270  1200  252
600  269    

Observations: The test item did not change in appearance during testing.

Conclusions:
The freezing temperature of the test item has been determined to be <-20°C (253 K) in a study conducted in accordance with a relevant test method and in compliance with GLP. The result is considered to be reliable.
Executive summary:

The melting/freezing temperature of 2,4 -Hexadienoic Acid, 3 -(Trimethoxysilyl) Propyl Ester has been determined. The results are summarized below: Melting/Freezing Temperature <-20°C (253 K) using a method designed to be compatible with Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008, Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995 and Method 830.7200 of the OPPTS Guidelines.

Description of key information

Freezing temperature: <-20°C at 1013 hPa (OECD 102)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-20 °C

Additional information

A freezing temperature of <-20°C (253 K) at 1013 hPa was determined for the substance in accordance with OECD Test Guideline 102 and in compliance with GLP. The result is considered to be reliable.