Birch Oil

定義

本品は、ヨーロッパシラカバBetula alba から得られる精油である。[Betula pendula]

化粧品の成分用途

香料

化学的特性

The essential oil is obtained from the B. alba and B. pendula Roth.

物理的性質

The essential oil of B. alba L. is a viscous, yellow liquid with a balsamic odor. It is obtained from buds by steam distillation in 3.5 to 8% yields. The oil solidifies at low temperature because of its paraffin content. The essential oil of B. alba L. var. pubescens Ehrl., obtained from buds in 3.5% yields by steam distillation, has a specific gravity of 0.9779. The essential oil of B. alba I. obtained from bark is recovered in 0.4 to 0.5% yields. The essential oil obtained from leaves is recovered in 0.4 to 0.5% yields.

天然物の起源

Found in the tar of the bark and wood of Betula pendula Roth (fam. Betulaceae).

製造方法

By steam-distillation of the tar obtained by dry distillation of the bark and the wood of Betula pendula Roth (fam. Betulaceae).

安全性プロファイル

A skin irritant. Moderatelyirritating to eyes and mucous membranes. A mild allergen.Combustible when exposed to heat or flame; can reactwith oxidizing materials.