Section 9: Physical and Chemical Properties
Physical state and appearance: Solid. (Crystals solid.)
Odor:
Aromatic. Spicy-herbal odor reminiscent of thyme
Taste: Pungent. Sweet. Medicinal. Spicy
Molecular Weight: 150.22 g/mole
Color: Colorless. White.
pH (1% soln/water): 7 [Neutral.]
Boiling Point: 233°C (451.4°F)
Melting Point: 52°C (125.6°F)
Critical Temperature: Not available.
Specific Gravity: 0.97 (Water = 1)
Vapor Pressure: Not applicable.
Vapor Density: 5.2 (Air = 1)
Volatility: Not available.
Odor Threshold: Not available.
Water/Oil Dist. Coeff.: The product is more soluble in oil; log(oil/water) = 3.3
Ionicity (in Water): Not available.
Dispersion Properties: See solubility in water, diethyl ether.
p. 4
Solubility:
Soluble in diethyl ether. Very slightly soluble in cold water. Solubility in water: 1 g/1000 ml water @ 25 C; 900 mg/1000 ml
water @ 20 C Solubility in alcohol: 1 g/1ml alcohol @ 25 C Solubility in chloroform: 1g/0.7 ml chloroform @ 25 C Solubility
in ether: 1 g/1.5 ml ether @ 25 C Solubility in olive oil: 1 g/1.7 ml olive @ 25 C Soluble in glacial acetic acid, oils, fixed alkali hydroxide. Slightly soluble in glycerol