Liquid paraffin - Ryuudou Parafin (English spelling) liquid paraffin

Japanese: 流動パラフィン - りゅうどうぱらふぃん(英語表記)liquid paraffin
Liquid paraffin - Ryuudou Parafin (English spelling) liquid paraffin

Also known as white oil, it is a tasteless, odorless, colorless, transparent oil whose main components are naphthenic hydrocarbons. It is obtained by refining the oil distilled from the atmospheric distillation residue of petroleum under reduced pressure and filtering out the wax. Its boiling point is over 300°C and its specific gravity is 0.85-0.94. There are industrial and pharmacopoeial liquid paraffin, the latter of which is highly refined and used in creams, baby oil, hair oil, etc. The industrial type is used in precision machinery oils, polystyrene lubricants, and fabric softeners for synthetic fibers.

[Namba Seitaro]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

ホワイトオイルともよばれる無味、無臭、無色透明の油で、ナフテン系炭化水素が主成分である。石油の常圧蒸留残油を減圧蒸留して留出した油を精製し、ろう分を濾過(ろか)分離して得られる。沸点は300℃以上で、比重は0.85~0.94である。流動パラフィンには工業用および薬局方流動パラフィンがあり、後者は高度に精製したもので、クリーム、ベビーオイル、ヘアーオイルなどに用いられる。工業用のものは、精密機械油、ポリスチレンの滑剤、合成繊維の柔軟仕上げ剤などに用いられる。

[難波征太郎]

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

<<:  Flow friction

>>:  Pour point depressant

Recommend

Exchange Marry - Exchange Marry (English spelling)

By combining buying and selling of foreign currenc...

Tampere - Tampere (English spelling)

A city in southwestern Finland. Located on the we...

Pseudoscience - Gijikagaku

Things that seem scientific but have no scientific...

Antependium

… [Masao Fujii] [Christian altar decoration] The ...

Pieris japonica (Asebii)

An evergreen shrub of the Ericaceae family that gr...

Kishizawa Mojibei - Kishizawa Mojibei

...He was the son of the first Mojisuke and was o...

Opium alkaloid atropine

...Side effects vary widely from person to person...

Knietsh - Theophil Josef Rudolf Knietsh

German chemical engineer. Graduated from the Tech...

Ipoh - Ipoh (English spelling)

Ipoh is the capital of Perak State on the west co...

Deutsche Oper Berlin (West) (English) DeutscheOperBerlin

…In 1919, it became the State Opera. Deutsche Ope...

Expected possibility - expected possibility

The possibility of expecting the perpetrator to c...

Kao, Charles

Born: November 4, 1933 in Shanghai [Died] Septembe...

Playfair, L. (English spelling) PlayfairL

...However, by the mid-19th century, continental ...

Kimhae Kara (English spelling)

A powerful state among the ancient Gaya states of ...

Injin - Injin

…His disciple He Zhen (?-1604) surpassed his teac...