Oakmoss Absolute (Green) (aromatherapy)

The absolute from benzene concrète is a dark green, semi-solid or solid mass (from hotbenzene extracted concrète) or a very viscous liquid or soft, plastic mass (from cold-benzene extracted concrète). White, needle-like or prismatic crystals may grow on the surface or on the inside walls of the container when it has been exposed to significant changes in temperature (sublimation of lichen acids). It is worth mentioning that these crystals are not a direct criterion of either a highly odorous product nor a very genuine one. But it has been established as a fact that these odorless acids contribute greatly to the stability of the highly odorous aldehydes (e.g. Evernic Aldehyde).

Arctander, Steffen . Perfume and Flavor Materials of Natural Origin (p. 524)

ervania prunastri

mousse de chene