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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From Oct. 12, 2009 to Jan. 11, 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study was conducted according to standard guidelines (with GLP)
Justification for data waiving:
other:
Cross-referenceopen allclose all
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to other study

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Type of method:
capillary method

Test material

Constituent 1
Chemical structure
Reference substance name:
Glycerides, C8-18 and C18-unsatd.
EC Number:
266-946-3
EC Name:
Glycerides, C8-18 and C18-unsatd.
Cas Number:
67701-28-4
Molecular formula:
Triglycerides containing a glycerol backbone esterified to fatty acids with a carbon chain length of C8-18 as well as unsaturated C18 fatty acids
IUPAC Name:
Tri(C8-18 and C18-unsatd. fatty acyl)glycerol
Details on test material:
- Name of test material (as cited in study report): Fully hydrogenated coconut oil (CAS N° 84836-98-6, EC N° 284-283-8); under the SDA nomenclature, the name of this substance is ‘Glycerides, C8-18, C18-unsatd’
- Physical state: Solid (bright yellow)
- Expiration date of the lot/batch: December 26, 2009
- Certificate of analysis date: June 26, 2009
- Storage condition of test material: Stored in original container, in the refrigerator (1-8 °C) for 15 d and then at room temperature (10-30 °C), in the dark

Results and discussion

Melting / freezing point
Melting / freezing pt.:
30.4 - 34.9 °C
Atm. press.:
ca. 1 atm
Decomposition:
no
Sublimation:
no
Remarks on result:
other: None

Any other information on results incl. tables

The test item showed five stages of melting, i.e. beginning of melting/wet point, shrinking point, collapse point, liquefying point and final stage of melting with no solid particles left.

Applicant's summary and conclusion

Conclusions:
The melting point of fully hydrogenated coconut oil was found to be in the range of 30 to 35 °C.
Executive summary:

The melting point of fully hydrogenated coconut oil was determined by the capillary method using an electronically controlled heating system according to OECD Guideline 102, EU Method A.1 and EPA OPPTS 830.7200.

In the preliminary test, a sample of the test item in a capillary glass tube was heated from room temperature with a rate of approximately 10 ºC/min. to estimate phase transition temperature. For the actual determination of the melting point, the temperature rise was adjusted to a maximum of 1 ºC/min. at about 7 ºC before and 12 °C after the predetermined phase transition temperature.

The melting point of fully hydrogenated coconut oil was found to be in the range of 30 to 35 °C.

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