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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-01-19 – 2017-01-19
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental result performed using standard methods of analysis
Qualifier:
according to
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The Freezing point determination of Nonylphenol ethoxylates (CASNo.127087-87-0) was done using crushed ice and salt bath.
GLP compliance:
not specified
Type of method:
other: standard laboratory method
Specific details on test material used for the study:
- Name of test material (as cited in study report): Nonylphenol ethoxylates
- Molecular formula : C17H28O2
- Molecular weight : 264.409 g/mol
- Substance type:Organic
- Physical state: Liquid
Key result
Melting / freezing pt.:
< -11.84 °C
Atm. press.:
977.5 hPa
Remarks on result:
other: no other details available

Method Details

Observations

Method

Freezing temperature determination according to Cooling Curve method using MicroLab FS-524

-

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

(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.

-

Quantity of test

item used

g

1 ml

Type of cooling bath used

·        

·        

·        

·        

·        

Crushed Ice- Salt

Type and model no. of temperature sensor used

·        

·        

·        

·        

Thermistor

 

Atmospheric pressure

hPa

977.5 hPa

Freezing point °C

°C

less than -

11.84 °C

Conclusions:
The Freezing point determination of Nonylphenol ethoxylates (CASNo.127087-87-0) was done using crushed ice and salt bath. No freezing was observed up to - 11.84 °C. Hence, the freezing point was inferred to be less than -11.84°C at 977.5 hPa.
Executive summary:

The Freezing point determination of Nonylphenol ethoxylates (CASNo.127087-87-0) was done using crushed ice and salt bath. No freezing was observed up to - 11.84 °C. Hence, the freezing point was inferred to be less than -11.84°C at 977.5 hPa.

Description of key information

The Freezing point determination of Nonylphenol ethoxylates (CASNo.127087-87-0) was done using crushed ice and salt bath. No freezing was observed up to - 11.84 °C. Hence, the freezing point was inferred to be less than -11.84°C at 977.5 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-11.84 °C

Additional information

The Freezing point determination of Nonylphenol ethoxylates (CASNo.127087-87-0) was done using crushed ice and salt bath. No freezing was observed up to - 11.84 °C. Hence, the freezing point was inferred to be less than -11.84°C at 977.5 hPa.