Reaction mass of (3aR,5aS,9aS,9bR)-3a,6,6,9a-Tetramethyldodecahydronaphtho[2,1-b]furan and (3aS,5aR,9aR,9bS)-3a,6,6,9a-Tetramethyldodecahydronaphtho[2,1-b]furan

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 2008-07-17 to 2008-12-18

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Remarks:

The study was conducted similarly to guideline, with acceptable deviation. The substance is considered to be adequately characterised with its purity. Therefore validation applies, with restrictions.

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

yes

Remarks:

closed crucible; single run

GLP compliance:

no

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

Storage condition of test material: in a refrigerator at about 4°C.

Key result

Melting / freezing pt.:

ca. 80 °C

Decomposition:

no

The DSC trace provided in the report shows a sharp endotherm peak, starting from about 70°C, with a maximum at about 85°C, and ending at about 90°C. The extrapolated onset temperature is expected to be ca 80°C.

Executive summary:

The test substance was investigated for explosive properties, including Differential Scanning Calorimetry screening test. Experimental conditions are acceptable for purpose.

The DSC trace shows a sharp endotherm, that can be interpreted as the melting temperature of the sample.

The melting point of the test substance is ca 80°C.

Description of key information

Sharp melting transition expected at ca 80°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

80 °C

Additional information

A reliable study, conducted according to a recognized OECD/EU method is available. Despite restrictions due to test conditions, it is considered as a key study. The result is retained as key data for purpose of CSA.