Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
9 August 2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study conducted in accordance with generally accepted scientific principles, possibly with incomplete reporting or methodological deficiencies, which do not affect the quality of relevant results

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Principles of method if other than guideline:
The drop point is the temperature at which the first drop of sample falls from the cup under the specified conditions of the test.The Drop Point Method is an alternative to melting point and is used when due to the complex nature of the substance melting occurs over a wide range of temperatures. This end point effectively shows when the material would start to flow – i.e. behave as a liquid rather than a solid. Drop points are measured routinely and averages over several batches are given for lanolin alcohols.

The apparatus is filled with the sample and the temperature is raised until the first drop of sample falls and is detected photoelectrically within the FP83HT measuring cell.
GLP compliance:
no
Type of method:
other: Differential scanning calorimetry (DSC)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Argowax (Lanolin alcohols)
- Substance type: Organic
- Physical state: Solid wax
- Storage condition of test material: Not stated

Results and discussion

Melting / freezing point
Melting / freezing pt.:
>= 45 - < 80 °C
Atm. press.:
101.6 kPa
Decomposition:
no
Sublimation:
no

Any other information on results incl. tables

DSC Evaluations

 Product Name:-                     Argowax(Lanolin alcohols)

CAS Number                          8027-33-6

Material                                  100% Solid

Estimated Melting Point          45ºc to 80ºc

Scan speed                            temperature program of 20 ºc per minute

Instrument                              Mettler Toledo DSC 0822

Applicant's summary and conclusion

Conclusions:
The drop point temperature of the test material has been estmated to be in the range 45 °C - 80 ° at 101.6 kPa.
Executive summary:

The drop point is the temperature at which the first drop of sample falls from the cup under the specified conditions of the test.The Drop Point Method is an alternative to melting point and is used when due to the complex nature of the substance melting occurs over a wide range of temperatures. This end point effectively shows when the material would start to flow – i.e. behave as a liquid rather than a solid. Drop points are measured routinely and averages over several batches are given for lanolin alcohols.

 

The apparatus is filled with the sample and the temperature is raised until the first drop of sample falls and is detected photoelectrically within the FP83HT measuring cell.

Equivalent of similar to:

DSC Evaluations

 Product Name:-                     Argowax (Lanolin alcohols)

CAS Number                          8027-33-6

Material                                  100% Solid

Estimated Melting Point          45 ºc to 80ºc

Scan speed                            temperature program of 20 ºc per minute

Instrument                              Mettler Toledo DSC 0822

The melting temperature of the test material has been estimated to be 45 °C - 80 ° at 101.6 kPa.