Fatty acids, C14-18 and C16-18-unsatd., ammonium salts

Appearance / physical state / colour

Administrative data

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Justification for type of information:

Own observation of physical state, colour and odour.

Cross-reference

Reason / purpose for cross-reference:

other: reference to melting point study

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2018-01-16 to 2018-01-24

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

>= -19.1 - <= 14.89 °C

Remarks on result:

other: Melting (Freezing) Range

Table of results (Screening Test):

	Onset temp. (°C)	Heat of melting (J.g-1)
First Endotherm	-19.44	96.866
Second Endotherm	38.85	102.56
Third Endotherm	84.15	23.113
Fourth Endotherm	104.14	153.27

On completion of testing a tiny drop of colourless sample remained at the bottom of the pan.

The endotherm observed with an onset of -19.44 was considered to be due to melting. Therefore formal analysis was conducted between -50 to 150°C at 1 K.min-1.

Table of results:

	Run 1	Run 2	Run 3	Run 4
Endotherm onset temp. (°C)	-19.10	-18.82	-18.66	-18.03
Mass of Sample Used (g)	5.04	3.19	4.72	4.70

Due to the broadness and multi-peak nature of the endotherm and the multi-component nature of the sample the melting/ freezing temperature has been reported as a range.

Conclusions:

Melting range of the test substance is -19.10 to 14.89°C.

Executive summary:

Melting (Freezing) Range: -19.10 to 14.89°C.

Data source

Reference

Reference Type:

other company data

Title:

Unnamed

Year:

2017

Materials and methods

Test guideline

Guideline:

other: not reported

Principles of method if other than guideline:

not reported

GLP compliance:

no

Other quality assurance:

other: own observations

Test material

Test material information

Constituent 1

Reference substance name:

Fatty acids, C14-18 and C16-18-unsatd., ammonium salts

EC Number:

271-685-3

EC Name:

Fatty acids, C14-18 and C16-18-unsatd., ammonium salts

Cas Number:

68604-33-1

Molecular formula:

C14H28O2.H3N / C16H32O2.H3N / C18H36O2.H3N / C18H34O2.H3N / C18H32O2.H3N / C18H30O2.H3N / C16H30O2.H3N .

IUPAC Name:

Fatty acids, C14-18 and C16-18-unsatd., ammonium salts

Test material form:

other: paste-like

Details on test material:

Several batches in 2017 with purity: ~85.3% (contains ~14.7% water).

Results and discussion

Physical state at 20°C and 1013 hPa:

liquid

Remarks:

According to the study of melting temperature, the substance is liquid at 20°C.

Form / colour / odour

Key result

Form:

other: paste-like

Remarks:

According to the study of melting temperature, the substance is liquid at 20°C.

Colour:

yellowish - brown

Odour:

other: mild ammonia-like

Substance type:

organic