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EC number: 217-683-8 | CAS number: 1929-86-8
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24.11.2017 - 27.11.2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: The method according to the OECD Guideline for Testing of Chemicals no. 102 and EEC A.1. was used. The method of crystallization tube in freezing mixture dry ice (solidified carbon dioxide)/acetone was used.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
Test material
- Reference substance name:
- Potassium 2-(4-chloro-2-methylphenoxy)propionate
- EC Number:
- 217-683-8
- EC Name:
- Potassium 2-(4-chloro-2-methylphenoxy)propionate
- Cas Number:
- 1929-86-8
- Molecular formula:
- C10H11ClO3.K
- IUPAC Name:
- potassium 2-(4-chloro-2-methylphenoxy)propanoate
- Test material form:
- liquid
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- >= -12.9 - <= -10.9 °C
Any other information on results incl. tables
The three measurements runs have been done. The first crystals of Mecoprop K400 SL emerged at the temperature -10.8°C and gradually the mixture began to crystallize. The results are shown in Table below.
Measurement no. 1 |
Measurement no. 2 |
Measurement no. 3 |
|||
Time [min] |
Temperature [˚C] |
Time [min] |
Temperature [˚C] |
Time [min] |
Temperature [˚C] |
30.0 |
-10.3 |
30.0 |
-9.4 |
30.0 |
-9.2 |
32.0 |
-11.0 |
32.0 |
-10.3 |
32.0 |
-9.8 |
34.0 |
-11.7 |
34.0 |
-10.8 |
34.0 |
-10.5 |
36.0 |
-12.3 |
36.0 |
- |
36.0 |
-11.1 |
38.0 |
-12.5 |
38.0 |
- |
38.0 |
-11.7 |
40.0 |
- |
40.0 |
- |
40.0 |
-12.4 |
Average value ± standard deviation, °C |
- 11.9 ± 1.0 |
||||
Applicant's summary and conclusion
- Executive summary:
The average value of Mecoprop K400 SL an initial freezing point of is equal to: - 11.9 ± 1.0°C.
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