Silicon dioxide (silicon dioxide) - nisankeiso (English spelling) silicon dioxide

Japanese: 二酸化ケイ素(二酸化珪素) - にさんかけいそ(英語表記)silicon dioxide
Silicon dioxide (silicon dioxide) - nisankeiso (English spelling) silicon dioxide
The chemical formula is SiO 2 . It is also known as silica and silicic anhydride. It occurs naturally in various crystalline forms. It can also be synthesized to produce crystalline, amorphous, and vitreous silicon dioxide. There are three crystalline modifications: quartz, trisporinite, and cristobalite. Quartz (which includes rock crystal, agate, chalcedony, flint, etc.) is colorless or colored purple, brown, or other colors due to impurities. There are two modifications of quartz: alpha quartz, which is stable at temperatures below 573°C, and beta quartz, which is stable at temperatures above 573°C.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
化学式SiO2。シリカ,無水ケイ酸などとも呼ばれる。いろいろな結晶状態として天然に産する。また合成により結晶および無定形,ガラス状などの二酸化ケイ素が得られる。結晶状態には石英,リンケイ石,クリストバライトの三つの変態がある。石英(水晶,メノウ,玉髄,フリントなどを含む)は無色または不純物により紫,褐色その他に着色している。石英には,573℃以下で安定な低温型のα石英と,573℃以上で安定な高温型のβ石英の二つの変態がある。

出典 株式会社平凡社世界大百科事典 第2版について 情報

<<:  Germanium dioxide - Germanium dioxide

>>:  Sulfur dioxide - Sulfur dioxide

Recommend

Penetration - Shinto

When a pure solvent and a solution (or a dilute s...

"The Imperial Book of the Imperial Rule of the Imperial Palace"

…〈Juzhenban〉 means movable type printing. The pro...

Mazdakite - Mazdakite

A religion founded by Mazdak during the Sassanid p...

Gyotokugashi

...To prevent the spread of fires, there were str...

Madagascar - Madagascar (English spelling)

An island nation in the Indian Ocean, 392 km east...

Business unionism

Unlike European labor unions, American labor union...

Golden waxwing - Golden waxwing

…The cedar waxwing, B. cedrorum (English name: ce...

Morinji Temple

This is a Soto sect temple in Tatebayashi, Gunma ...

Graptopsaltria bimaculata (English name) Graptopsaltria bimaculata

…[Masami Hayashi]. . … *Some of the terminology t...

Aquila (Eagle)

Its abbreviation is Aql. It is a constellation see...

Gradualism - gradualism

It refers to ideas and actions based on a method o...

Osorio, CA - Osorio

…In response, the Idigoras and then Julio Cesar M...

Wading birds

Originally, the term was used in herbal medicine ...

Mortar ball - Usudama

A type of bead from the Kofun period. Shaped like...

Brockengespenst

...Because the light coming from the sun is paral...