…Usually referring to orthosilicic acid, H 4 SiO 4 , it can also be used as a general term to include metasilicic acid (H 2 SiO 3 ) n and various other forms of acid, or amorphous hydrated silicon dioxide, represented by x SiO 2 ・ y H 2 O. Orthosilicic acid can be obtained as a colorless powder by hydrolyzing silicon tetrahalide or treating alkali orthosilicate with hydrochloric acid, washing the product with ether, benzene, etc., and drying it, but it is difficult to obtain pure H 4 SiO 4 , and H 2 SiO 3 , H 2 Si 2 O 5 , etc. are mixed in. … *Some of the terminology explanations that mention "orthosilicic acid" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ふつうはオルトケイ酸H4SiO4を指すが,メタケイ酸(H2SiO3)nのほか各種の形式の酸,あるいはxSiO2・yH2Oであらわされる無定形不定組成の水和二酸化ケイ素を含めた総称として用いられることもある。オルトケイ酸は,四ハロゲン化ケイ素を加水分解するか,オルトケイ酸アルカリを塩酸で処理し,生成物をエーテル,ベンゼンなどで洗浄し乾燥すると無色粉末状の化合物として得られるが,純粋にH4SiO4のみを得るのはむずかしく,H2SiO3,H2Si2O5などが混入する。… ※「オルトケイ酸」について言及している用語解説の一部を掲載しています。 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 |
<<: Orthosilicate - Orthosilicate
...adults are generally free-living, but many spe...
A type of mochi sweet. It is also called gyuhi su...
... Fixing a set of bases e i ( i = 1, ..., n ) i...
...A position that seeks the original way of bein...
A Japanese political party. In the second Wakatsuk...
…The permanent dentition includes these teeth, al...
A port city in southeastern Romania, about 140 km ...
…A perennial herb of the ginger family with fragr...
...There are ferry services to the central city o...
Located in the northwest of the Malaysian peninsul...
…When you actively touch an object with your hand...
…the name of the 44 species of birds in the Craci...
The relationship between a star's mass and its...
Year of death: July 16, 5th year of Ansei (August ...
…Many of his prophecies are in poetic form and ar...