Дифенілоксид

СинтетичнийЗЕЛЕНІ НОТИ, ТРАВИ Й ФУЖЕРНІ АКОРДИзелений · герань · трав’яний
Верхні нотиПіраміда
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Зразок
Дифенілоксид як парфумерна сировина
Верхні ноти
Визначення

Diphenyl oxide (diphenyl ether, CAS 101-84-8) is an aromatic ether in which the oxygen is attached to two phenyl substituents. Its odour is geranium-like.

ЗЕЛЕНИЙ КВІТКОВИЙ ТРАВ’ЯНИЙ
Diphenyl ether, phenoxybenzene, phenyl ether, phenyl oxide, biphenyl oxide, geranium crystals, oxybisbenzene
Type
Складник
Olfactive family
Ароматичні
Source
synthetic molecule
Chemical class
ether (aromatic)
Інструменти
Піраміда
ВВерхні ноти
СНоти серця
ББазові ноти

Запах

Its aroma is harsh, floral-green and metallic, of the geranium type. The notes include geranium, green leaf, floral rosewood, slightly harsh phenolic notes, aldehydic-metallic notes and camphor. The odour is sharp, rough, metallic and leafy. It is also described as being in the style of rose and geranium.

Докладно

What it is

Diphenyl ether is the organic compound with the formula (C₆H₅)₂O. It is a colorless, low-melting solid and the simplest diaryl ether. It is insoluble in water and soluble in ether, benzene and acetic acid.

Chemistry

Like other phenyl rings, it undergoes hydroxylation, nitration, halogenation, sulfonation and Friedel-Crafts alkylation or acylation. Diphenyl ether is a starting material in the production of phenoxathiin via the Ferrario reaction. Phenoxathiin is used in polyamide and polyimide production.

Industrial uses

The main application of diphenyl ether is as a eutectic mixture with biphenyl, used as a heat transfer fluid. Such a mixture suits heat transfer because its liquid state spans a relatively large temperature range. A eutectic mixture of the two is 73.5% diphenyl ether and 26.5% biphenyl. Diphenyl ether is also used as a processing aid in the production of polyesters. It is also used as a dye carrier.

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Related: Alpha Pinene · Angelica · Angelica Root · Angelica Root Oil · Artemisia · Barrenwort · Beachheather · Behini Tree

Цікавий факт

Diphenyl ether has also been found in muscat grapes and vanilla.

Отримання й хімія

Спосіб отримання

Diphenyl ether is synthesized by an Ullmann-like reaction of sodium phenoxide and bromobenzene in the presence of copper. It is also a significant side product in the high-pressure hydrolysis of chlorobenzene in the production of phenol.

Формула
C₁₂H₁₀O
CAS
101-84-8
Зовнішній вигляд
Colorless, crystalline solid or liquid
Синоніми
Diphenyl ether, phenoxybenzene, phenyl ether, phenyl oxide, biphenyl oxide, geranium crystals, oxybisbenzene
Статус IFRA
Див. примітку

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

Фізичні властивості
Температура кипіння
258.00 to 259.00 °C @ 760.00 mm Hg
Температура плавлення
25 to 26 °C
Температура спалаху
239 °F (115 °C), closed cup
Відносна густина
1.08 g/cm³ at 20 °C
Показник заломлення
1.578-1.583

У парфумерії

Diphenyl ether is used widely in soap perfumes because its odor recalls scented geranium and because it is stable and low in price. Usual concentrations in final products are 0.05% in soap, 0.005% in detergent, 0.05% in creams and lotions, and 0.15% in perfume.

Роль у формулі
01модифікатор
02сполучний компонент
03свіжість
Форми випуску
синтетична речовина

Див. також

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