Pyrocatechol, 1,2-dihydroxybenzene. C 6 H 6 O 2 (110.11). It is obtained by dry distillation of catechu, but can also be synthesized by alkaline fusion of o -chlorophenol or demethylation of guaiacol. Colorless prismatic crystals. Melting point 104 °C, boiling point 245 °C. 1.344. K a 3.3×10 -10 (18 °C). Easily sublimed, soluble in water, alcohol, and ether. Easily oxidized, especially in alkaline solutions, which tend to discolor in air. Forms a redox system with o -quinone and acts as one of the electron transport systems in the body. Used as a photographic developing agent in combination with metol ( p -methylaminophenol). It is also used as an analytical reagent, as it forms complexes with metals in alkaline solutions. [CAS 120-80-9] Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition |
pyrocatechol,1,2-dihydroxybenzene.C6H6O2(110.11).カテキューの乾留によって得られるが,o-クロロフェノールのアルカリ融解,グアイアコールの脱メチル化などによって合成される.無色の稜柱状晶.融点104 ℃,沸点245 ℃.1.344.Ka 3.3×10-10(18 ℃).昇華しやすく,水,アルコールあるいはエーテルに可溶.酸化されやすく,とくにアルカリ溶液は空気中で変色しやすい.o-キノンとの間に酸化還元系をつくり,生体内電子伝達系の一つとしてはたらく.メトール(p-メチルアミノフェノール)と組み合わせて写真用現像薬として用いられる.また,アルカリ溶液中で金属と錯体をつくるので,分析用試薬としても用いられる.[CAS 120-80-9] 出典 森北出版「化学辞典(第2版)」化学辞典 第2版について 情報 |
<<: Cadet (English spelling) Кадеты/Kadetï Russian
A city in the inland of the Republic of South Afri...
A glass and chemical manufacturer of Mitsubishi. I...
Bishop of Tours and saint. Roman soldier from Pan...
Born: 1877. Chirpan [Died] 1914. Sofia. Bulgarian ...
…Behaviorism focuses on behavior rather than the ...
Architectural term. A buttress is a wall that proj...
A musician at a vaudeville theater and head of th...
…Scuba was initially used for military purposes, ...
…Giant race in Greek mythology. The singular form...
A civilization that flourished in the Andes region...
...Because these facts are nothing but the sedime...
…[Yamaguchi Hirokazu]. … *Some of the terminology...
...Due to its high strength and lightness (specif...
...The name given to stones used by young people ...
In this situation, conservative Mongolians who op...