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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25-02-2017 – 25- 02-2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
other: as mention below
Principles of method if other than guideline:
The Freezing point determination of 1'-acetonaphthone (CAS No.941-98-0) was done using crushed ice and salt.
GLP compliance:
no
Type of method:
other: standard laboratory method
Key result
Melting / freezing pt.:
< -13.65 °C
Atm. press.:
979.4 hPa
Decomposition:
no
Sublimation:
no
Remarks on result:
other: other details not available

Observation Table & Result :

 Method Details    Observations
 Guideline  -  
 Method Freezing Temperature Method  
 Principle of method

 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

ml/g

 1 ml

 Type of cooling bath used
  1. Cold Water
  2. Crushed Ice
  3. Crushed Ice-Salt
  4. Dry Ice
  5. Other (specify)

 

Crushed Ice-

Salt

Type and model no. of temperature sensor used
  1. Glass thermometer
  2. Thermocouple
  3. Thermistor
  4. Other (specify)

Glass

thermometer

Atmospheric pressure

hPa

 979.4 hPa

 Freezing point °C

 °C

 less than 13.65 °C
Conclusions:
The Freezing point determination of 1'-acetonaphthone (CAS No.941-98-0) was done using crushed ice and salt. No freezing was observed up to -13.65 °C. Hence, the freezing point was inferred to be less than -13.65 °C at 979.4 hPa.
Executive summary:

The Freezing point determination of 1'-acetonaphthone (CAS No.941-98-0) was done using crushed ice and salt. No freezing was observed up to -13.65 °C. Hence, the freezing point was inferred to be less than -13.65 °C at 979.4 hPa.

Description of key information

The Freezing point determination of 1'-acetonaphthone (CAS No.941-98-0) was done using crushed ice and salt. No freezing was observed up to -13.65 °C. Hence, the freezing point was inferred to be less than -13.65 °C at 979.4 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-13.65 °C

Additional information

The Freezing point determination of 1'-acetonaphthone (CAS No.941-98-0) was done using crushed ice and salt. No freezing was observed up to -13.65 °C. Hence, the freezing point was inferred to be less than -13.65 °C at 979.4 hPa.

Based on available data from authoritative database the freezing point of chemical 1-(1-naphthyl)ethanone is determined to be 10.5 degree C. Other supporting study from review article also suggests that the freezing point of chemical 1-(1-naphthyl)ethanone was reported to be 10 degree C, 10.2 degree C & in the range between 9 -10 Deg C.