Maddrell's salt

Japanese: Maddrell's salt(英語表記)Maddrellssalt
Maddrell's salt

...Sodium metaphosphate (NaPO 3 ) n is produced by dehydration condensation of sodium dihydrogen phosphate (NaH 2 PO 4 ) , and various forms are obtained depending on the reaction temperature, heating time, cooling rate, etc. Below 400°C, a poorly soluble salt called Maddrell's salt is obtained. When heated to about 500°C via dihydrogen pyrophosphate (Na 2 H 2 P 2 O 7 ) , cyclo-sodium triphosphate (Na 3 (PO 3 ) 3 ) is produced. ...

*Some of the terminology that mentions "Maddrell's salt" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…メタリン酸ナトリウム(NaPO3)nはリン酸二水素ナトリウムNaH2PO4の脱水縮合によって生成するが,反応温度,加熱時間,冷却速度などによって種々の形態のものが得られている。400℃以下ではマドレル塩Maddrell’s saltと呼ばれる難溶性塩が得られる。ピロリン酸二水素塩Na2H2P2O7を経て500℃程度にまで熱するとcyclo‐三リン酸ナトリウムNa3(PO3)3が生成する。…

※「Maddrell's salt」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

<<:  Madara

>>:  Madeleine

Recommend

Peroxo acid (English spelling)

This refers to an oxoacid in which O 2 2- is coord...

Hero family - Eiyuuke

〘 noun 〙 A family of the highest rank, second only...

Theognis (English spelling)

A Greek elegiac poet active around 540 BCE. Born i...

Okroshka

...Today, except in special cases, there is littl...

Wang Changling

A Chinese poet from the prosperous Tang Dynasty. ...

Mechanical tapping - Kikai tap

…Increasing taps come in a set of three like hand...

Deporte (English spelling) Philippe Desportes

French poet. Born in Chartres. He was the favorit...

Hojozugata Lagoon

A lagoon located in the Imizu Plain in the northwe...

Expectation - Expectation (English spelling)

It means an attitude of anticipating the future a...

Ethyl Carbamate

C 3 H 7 NO 2 (mw 89.09). NH 2 COOC 2 H 5 . Also ca...

Osteon

Also called an osteon. A unit of compact bone that...

Contract of revolt - Ikkikeiyaku

...This procedural format means that the law regu...

Laurent - Auguste Laurent

French chemist. After graduating from the School ...

Simeon, Charles

Born: 24 September 1759, Reading Died November 13,...

aging

This refers to the change that occurs over time w...