Hexylamine

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:

09/11/2015 to 10/11/2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Experimental data using standard methods of analysis

Qualifier:

according to guideline

Guideline:

other: as mentioned 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

Melting / freezing pt.:

< -12.7 °C

Atm. press.:

977.9 hPa

Remarks on result:

other: No other information available

Conclusions:

The Freezing point of n-Hexyl amine (CAS No.111-26-2) was determined with crushed ice and salt as cooling bath and it was found to be less than -12.7 °C at 977.9 hPa.

Executive summary:

The Freezing point determination of test itemn-Hexyl amine(CAS No.111-26-2) was done using crushed ice and salt 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.

No crystallization was observed up to -12.7°C. Hence, the freezing point was concluded to be less than -12.7°C at 977.9 hPa.

Description of key information

The Freezing point of n-Hexyl amine (CAS No.111-26-2) was determined with crushed ice and salt as cooling bath and it was found to be less than -12.7 °C at 977.9 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-12.7 °C

Additional information

In a test conducted by SSS (Europe)AB,the Freezing point determination of test itemn-Hexyl amine(CAS No.111-26-2) was done using crushed ice and salt 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. No crystallization was observed up to -12.7°C. Hence, the freezing point was concluded to be less than -12.7°C at 977.9 hPa.

Other supporting studies from reliable sources such as handbooks and authoritative database,also suggests that the freezing point of chemical Hexylamine was between the range of -23 degree C to -21 degree C.

As the data from lab has K1 reliability and the test was performed using standard methods which has the value of freezing point as -12.7 degree celcius thus considered as key study for the chemical safety assessment.