CAS Number:80-56-8

Appearance: colorless to pale yellow clear liquid (est)
Assay: 97.00 to 100.00 sum of isomers
Food Chemicals Codex Listed: Yes
Specific Gravity: 0.85300 to 0.86100 @ 25.00 °C.
Pounds per Gallon – (est).: 7.098 to 7.164
Specific Gravity: 0.85400 to 0.86200 @ 20.00 °C.
Pounds per Gallon – est.: 7.114 to 7.181
Refractive Index: 1.46300 to 1.46700 @ 20.00 °C.
Refractive Index: 1.46400 @ 25.00 °C.
Optical Rotation: -35.00 to -40.00
Melting Point: -64.00 to -62.00 °C. @ 760.00 mm Hg
Boiling Point: 155.00 to 156.00 °C. @ 760.00 mm Hg
Boiling Point: 72.00 to 73.00 °C. @ 50.00 mm Hg
Vapor Pressure: 4.750000 mmHg @ 25.00 °C.
Flash Point: 90.00 °F. TCC ( 32.22 °C. )
logP (o/w): 4.830
Shelf Life: 24.00 month(s) or longer if stored properly.
Storage: store in cool, dry place in tightly sealed containers, protected from heat and light.
Odor: Warm-woody, fresh-pine, resinous

Use: According to Arctander “alpa-Pinene is one of the lowest boiling of all Monoterpenes, and has therefore the most diffusive odor and poorest tenacity. It is also one of the purest commercially available Monoterpenes, the chief impurities being beta-Pinene and Camphene.”