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Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The Freezing point determination of Reaction mass of 3H-​Indolium, 2-​[[2-​(4-​methoxyphenyl)​-​2-​methylhydrazinyliden​e]​methyl]​-​1,​3,​3-​trimethyl-​ & acetate was done using crushed ice and salt.
GLP compliance:
not specified
Type of method:
other: standard laboratory method
Specific details on test material used for the study:
- Name of test material : Reaction mass of 3H-​Indolium, 2-​[[2-​(4-​methoxyphenyl)​-​2-​methylhydrazinyliden​e]​methyl]​-​1,​3,​3-​trimethyl-​ & acetate- Molecular formula : C20H24N3OC2H3O2- Molecular weight : 381.473 g/mol- Smiles notation : [N+]=1(c2ccccc2C(C)(C)C1\C=N\NCc1ccc(cc1)OC)C.C(C)(=O)[O-]- InChl : 1S/C20H23N3O.C2H4O2/c1-20(2)17-7-5-6-8-18(17)23(3)19(20)14-22-21-13-15-9-11-16(24-4)12-10-15;1-2(3)4/h5-12,14H,13H2,1-4H3;1H3,(H,3,4)- Substance type: Organic- Physical state: Liquid (Yellow)
Key result
Melting / freezing pt.:
< -10.21 °C
Atm. press.:
975.5 hPa
Remarks on result:
other: other details not available

TEST DESCRIPTION AND RESULT

Method Details

Observations

Remarks if, any

Method

Freezing Temperature Method

-

 

Principle of Freezing point test

The freezing point of a pure sample is the temperature at which transition from liquid to solid state takes place at atmospheric pressure.

-

Quantity of test item used

g

1 ml

Type of cooling bath used

 

Cold Water Crushed Ice Crushed Ice-Salt Dry Ice

Other (specify)

 

 

Crushed Ice- Salt

Type and model no. of temperature sensor used

 

Glass thermometer Thermocouple Thermistor

Other (specify)

Thermistor

Atmospheric pressure

hPa

975.5 hPa

Freezing point

°C

°C

less than

-10.21 °C

Conclusions:
The Freezing point of Reaction mass of 3H-​Indolium, 2-​[[2-​(4-​methoxyphenyl)​-​2-​methylhydrazinyliden​e]​methyl]​-​1,​3,​3-​trimethyl-​ & acetate was determined using freezing temperature method. No freezing was observed up to -10.21 °C.
Executive summary:

The Freezing point determination of Reaction mass of 3H-​Indolium, 2-​[[2-​(4-​methoxyphenyl)​-​2-​methylhydrazinyliden​e]​methyl]​-​1,​3,​3-​trimethyl-​ & acetate

was done using crushed ice and salt. No freezing was observed up to -10.21°C. Hence, the freezing point was inferred to be less than -10.21°C at 975.5 hPa.

Description of key information

The Freezing point of Reaction mass of 3H-​Indolium, 2-​[[2-​(4-​methoxyphenyl)​-​2-​methylhydrazinyliden​e]​methyl]​-​1,​3,​3-​trimethyl-​ & acetate

was determined using freezing temperature method. No freezing was observed up to -10.21 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-10.21 °C

Additional information

The Freezing point determination of Reaction mass of 3H-​Indolium, 2-​[[2-​(4-​methoxyphenyl)​-​2-​methylhydrazinyliden​e]​methyl]​-​1,​3,​3-​trimethyl-​ & acetate

was done using crushed ice and salt. No freezing was observed up to -10.21°C. Hence, the freezing point was inferred to be less than -10.21°C at 975.5 hPa.

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