Beaker - beaker (English spelling)

Japanese: ビーカー - びーかー(英語表記)beaker
Beaker - beaker (English spelling)

A type of chemical laboratory equipment. A flat-bottomed, cylindrical container with a wide opening and a spout for pouring liquids. It is used to perform operations such as separating liquids, preparing solutions, heating, cooling, stirring, and forming precipitates. There are microbeakers with a capacity of a few milliliters, as well as large beakers with a capacity of over 10 liters, and they are used according to the scale of the experiment. Beakers with a narrow opening compared to their height are called tall beakers, and those with a narrow cylindrical section toward the top are called conical (triangular) beakers. Thin-walled hard glass beakers are generally used, but beakers made of colored glass, quartz glass, porcelain, platinum, enamelware, polyethylene, fluororesin, and other materials are used depending on the purpose. Beakers with volumetric graduations are guide graduations and not graduations for measuring containers.

[Iwamoto Shinbu]

[Reference] | Chemical Experiments

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

化学実験器具の一つ。平底円筒形で開口部が広く、液体の注ぎ口がある容器。液体の分取(ぶんしゅ)、溶液の調製、加熱、冷却、攪拌(かくはん)(かきまぜ)、沈殿生成などの操作を行うのに用いられる。容量数ミリリットルのミクロビーカーから10リットルを超える大形ビーカーがあり、実験の規模に応じて使用する。高さに比べて口径が細いものをトールビーカー、上部に向かって円筒部が細くくびれたものをコニカル(三角)ビーカーとよぶ。一般には薄肉硬質ガラス製のものを使うが、着色ガラス、石英ガラス、磁器、白金、ほうろう鉄器、ポリエチレン、フッ素樹脂などの材質のビーカーが用途に応じて使われる。容量目盛りのつけられたものは目安目盛りであり、測容器としての目盛りではない。

[岩本振武]

[参照項目] | 化学実験

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

<<:  Sarcocheilichthys variegatus - Sarcocheilichthys variegatus

>>:  Bion - Bion (English spelling)

Recommend

Prince Yuge

Year of death: 21st July 699 (21st August 699) Yea...

Langermann, JG

... From the late 18th century to the early 19th ...

Katsumin Umino

Born: May 15, 1844, Mito [Died] October 6, 1915. T...

Field Athletics

A sport in which players play around multiple outd...

Funehiki [town] - Funehiki

A former town in Tamura County in the Abukuma High...

Magnetic sorting - magnetic sorting

Also known as magnetic separation. A method of sep...

Arno [river] - Arno

A river in central Italy. It originates in the Ape...

Modena (English spelling)

Modena is the capital of the province of Modena i...

Sumeru [Mountain] - Sumeru

An active volcano in eastern Java, Indonesia. It i...

mahārāja (English spelling)

…The title of the Mauryan kings, who established ...

anthropoid

...A general term for mammals belonging to the Po...

Large intestine

The large intestine is the part of the digestive ...

Panpipes - panpipe (English spelling) panpipes English

A general term for an aerophone instrument made o...

Nazareth

The central city of the northern part of Israel. I...

Reverse-handed sickle

...The person who does this kills the fetus by ho...