Олівець

АкордНАТУРАЛЬНІ Й СИНТЕТИЧНІ, ПОПУЛЯРНІ Й НЕЗВИЧНІдеревний · сухий · амбровий
Ноти серцяПіраміда
—Сила
—Стійкість
1Походження
Зразок
Олівець як парфумерна сировина
Ноти серця
Juniperus virginiana (eastern red cedar); Calocedrus decurrens (incense cedar)
Фантазійний/концептуальний
Визначення

Pencil is a woody, dry note that recalls the wooden lead pencil.

ДЕРЕВНИЙ КВІТКОВИЙ ЦИТРУСОВИЙ СОЛОДКИЙ ПУДРОВИЙ СВІЖИЙ СУХИЙ МІНЕРАЛЬНИЙ
Type
Акорд
Olfactive family
Деревні
Інструменти
Піраміда
ВВерхні ноти
СНоти серця
ББазові ноти
Країни-виробники
Сполучені Штати

Запах

Virginia cedarwood oil is woody and dry, slightly ambery, and traditionally reminiscent of a woody lead pencil. Many perfumers consider it to have a smoother and finer, but less powerful, odour than Texas oil. The wood of incense cedar has a pleasant odor. Crushed incense cedar foliage gives off an aroma somewhat akin to shoe-polish.

Докладно

Most pencils today are made from incense cedar (Calocedrus decurrens), which is grown in managed forests. The wood of incense cedar is soft and light and generally resistant to rot.

Most pencil cores are made of graphite powder mixed with a clay binder. Graphite is a crystalline allotrope, or form, of the element carbon. The graphite and clay strings are tempered in a kiln and then dipped in oil or molten wax. They are inserted into the grooves of a juniper or incense-cedar plank, and a second grooved plank is glued on top.

Although called cedarwood oils, the most important ones are distilled from the wood of junipers and cypresses rather than true cedars. Eastern red cedar (Juniperus virginiana) has fragrant heartwood, and moths avoid the aromatic wood. The three major components of its cedar oil, alpha-cedrene, thujopsene and cedrol, make up more than 60% of the essential oil. Cedrol is a sesquiterpene alcohol with the formula C₁₅H₂₆O. It makes up about 15.8% of Virginia cedarwood oil.

Explore all seven extraits in the Discovery Set.

—

Related: Alder · Alpha Humulene · Amaranth · Amberever · Amburana Bark · Antillone · Apple Tree

Цікавий факт

Incense cedar was once the primary material for wooden pencils, because it is soft and tends to sharpen easily without forming splinters. Over 14 billion pencils are manufactured worldwide annually.

Отримання й хімія

Спосіб отримання

Virginia cedarwood oil is obtained by distillation of the biomass with water or steam. The essential oil is physically separated from the aqueous phase by decantation. Part of the commercially available cedar oil is also produced by steam distillation from wood shavings. The yield is 2.3 - 3.5%, and about 30 kg of wood chips give 1 kg of oil.

Формула
Complex natural mixture (key constituents: α-cedrene; thujopsene; cedrol C₁₅H₂₆O)
Ботанічна назва
Juniperus virginiana (eastern red cedar); Calocedrus decurrens (incense cedar)
Статус IFRA
Див. примітку

No IFRA Standard for the material itself (51st Amendment)

Фізичні властивості
Температура спалаху
99 °C / 210.2 °F

У парфумерії

Cedarwood oil is used to scent soaps, technical preparations, room sprays and disinfectants. Cedarwood oil is used directly in fragrance compounding or as a source of raw components for making further fragrance compounds. Cedrol and cedrene, components of cedarwood oils, are valuable to the chemical industry for conversion to other derivatives with fragrance applications.

Роль у формулі
01модифікатор
02фірмова нота
03сполучний компонент
04формувач об’єму
05свіжість
Форми випуску
синтетичний акорд фантазійна нота

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