Ricinoleic acid - Ricinole-san (English spelling)

Japanese: リシノール酸 - りしのーるさん(英語表記)ricinolic acid
Ricinoleic acid - Ricinole-san (English spelling)

An unsaturated hydroxycarboxylic acid. Also known as ricinoleic acid. It has the structure of 12-hydroxy-9- cis -octadecenoic acid.

It exists in castor oil as a glyceride, and can be obtained by dissolving the mixed fatty acids obtained by saponifying castor oil in acetone and then subjecting it to fractional crystallization.

At room temperature, it is a colorless oily liquid that dissolves easily in ethanol (ethyl alcohol), ether, and chloroform. It is used as a raw material in the manufacture of paints, printing inks, lubricants, cosmetics, and soap for dry cleaning. In addition, castor oil is used medicinally as a laxative and ointment base material.

[Mr. Hirota November 18, 2016]

[References] | Hydroxycarboxylic acids | Castor oil [Supplementary information] | Ricinoleic acid (Data Note)

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

不飽和ヒドロキシカルボン酸の一つ。リシノレイン酸ricinoleic acidともよばれる。12-ヒドロキシ-9-cis(シス)-オクタデセン酸の構造をもつ。

 グリセリドとしてひまし油中に存在するので、ひまし油をけん化して得られる混合脂肪酸をアセトンに溶かして、分別結晶を行うと得られる。

 常温では無色の油状液体で、エタノール(エチルアルコール)、エーテル、クロロホルムによく溶ける。塗料、印刷インキ、潤滑油、化粧品、ドライクリーニング用のせっけんを製造する原料となる。このほかに、ひまし油は下剤、軟膏(なんこう)基材として薬用に供されている。

[廣田 穰 2016年11月18日]

[参照項目] | ヒドロキシカルボン酸 | ひまし油[補完資料] | リシノール酸(データノート)

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

<<:  Interest and dividend tax - Tax on interest and dividends

>>:  Lissitzky, El

Recommend

Mount Buko

This mountain is located in the western part of S...

Takanawa Peninsula

Located in the center of Ehime Prefecture, this p...

Tenri [city] - Tenri

A city in the eastern part of the Nara Basin in Na...

Uboze - Uboze

...Even the largest species only reach a total le...

Wimbledon Tennis Tournament - Wimbledon Tennis Tournament

The world's oldest tennis tournament, first he...

Hirohata family

The Masagimachi-Genji clan is an aristocratic fami...

tourist court

…In the United States, as motorization progressed...

Minamoto no Tsunenobu - Minamoto no Tsunenobu

A poet and Chinese poet of the Heian period. He w...

Mouse grass - Mouse grass

A perennial grass of the grass family found under ...

Ooshikiami (English spelling) Large set-net of triangular shape

Among fishing nets, this is a type of fixed net p...

Tylos granulatus (English spelling) Tylosgranulatus

…Originally native to the Eurasian continent, it ...

Muḥammad Ayūb Khān

1907‐74 Pakistani soldier and politician. Born in ...

Russian Owtscharka (English spelling)

…This dog is not as old as its name suggests, bei...

Rufous rat-kangaroo

An animal of the mammalian class, marsupial order...

Brola

A port city in southwestern Albania, facing the Gi...