Diisopropyl adipate

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

21/03/2016 - 21/03/2016

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:

Data is from experimental study report

Qualifier:

according to guideline

Guideline:

other: as entioned below

Principles of method if other than guideline:

The freezing point of a pure sample is determined by making measurements of the temperature as a function of time while the sample is submerged in a constant temperature bath at a temperature below that of the expected freezing point of the sample. The data (Temperature vs. time) is plotted; this plot is known as a cooling curve. The freezing point is the value of temperature in the flat portion of the curve.

GLP compliance:

no

Type of method:

other: Method according to Cooling Curve

Key result

Melting / freezing pt.:

-16 °C

Atm. press.:

974.1 hPa

Decomposition:

no

Sublimation:

no

Remarks on result:

other: No other details available

Method Details		Observations
Method	Method according to Cooling Curve
Principle of Freezing point test	The freezing point of a pure sample is determined by making measurements of the temperature as a function of time while the sample is submerged in a constant temperature bath at a temperature below that of the expected freezing point of the sample. The data (Temperaturevs.time) is plotted; this plot is known as acooling curve. The freezing point is the value of temperature in the flat portion of the curve.
Volume of test item used	g	1.0
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 Probe
Atmospheric pressure	hPa	974.1
Mean Freezing point	°C	-16.8 °C

Conclusions:

The Freezing point of test substance was determined with crushed ice and salt cooling bath and the mean freezing point was found to be -16.8 °C at 974.1 hPa.

Executive summary:

The Freezing point determination of test substance was done using crushed ice and salt cooling bath. The determination was done on the basis of cooling curve (time vs temperature) obtained when the test item was placed in the cooling bath. The mean freezing point was determined to be -16.8 °C at 974.1 hPa.

Description of key information

The Freezing point determination of test substance was done using crushed ice and salt cooling bath. The determination was done on the basis of cooling curve (time vs temperature) obtained when the test item was placed in the cooling bath. The mean freezing point was determined to be -16.8 °C at 974.1 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-16.8 °C

Additional information

The Freezing point determination of test substance was done using crushed ice and salt cooling bath. The determination was done on the basis of cooling curve (time vs temperature) obtained when the test item was placed in the cooling bath. The mean freezing point was determined to be -16.8 °C at 974.1 hPa.