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EC number: 232-077-3
CAS number: 7785-26-4
assigned to the boiling of the substance were observed and measurement
was stopped at 550°C.
corresponding to these peaks were used to create the following
Initial temperature (°C)
Final Temperature (°C)
Heating rate (°C/min)
Liquid nitrogen cooling
injection rate in the furnace.
taken: 11.01 mg
Melting point is observed from -20°C
pressure: 1018.3 hPa
taken: 13.32 mg
Melting point was observed from -20°C
pressure: 1025.5 hPa
study was performed to determine the melting point/range of test item
(-)-alpha-pinene. The method used was Differential Scanning Calorimetry
(DSC) and the test was according to Regulation EC No. 440/2008 Method
A.1 and OECD Test Guideline 102 , "Melting
this method, two
crucibles were put in the apparatus furnace under inert atmosphere
(helium) at atmospheric pressure. One crucible contained the test item,
the other was empty and considered as the reference. A specific
temperature program was applied. Heat
flow differences between the two crucibles and mass variation were
recorded on a thermogram.
trials were conducted and corresponding thermograms were obtained,
giving us the following results:
< -20 °C
melting point of reference substance Indium respects the checking cards
for a reference value of 156.6°C) so as its enthalpy (27.55
J/g for a reference value of 28.6 J/g). Therefore,
this study is considered as valid.
No melting point of substance
(-)-alpha-pinene was observed from - 20°C. Therefore, the melting point
of the substance is < -20°C.
point of substance (-)-alpha-pinene is < -20°C.
Key study conducted according to the OECD
102 Guideline and the EU A.1 method, under GLP without deviation and
with certificate of analysis included. Therefore, a reliability of 1 is
assigned and the result of this key study is proposed as the end point
This result is supported by consistent
experimental data obtained with alpha-pinene multiconstituent.
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