Английская Википедия:Aluminon

Материал из Онлайн справочника
Версия от 22:44, 29 января 2024; EducationBot (обсуждение | вклад) (Новая страница: «{{Английская Википедия/Панель перехода}} {{chembox | verifiedrevid = 451147151 | Name = Aluminon | OtherNames = ammonium aurin-tricarboxylate; 5-[(3-carboxy-4-hydroxyphenyl)(3-carboxy-4-oxo-2,5-cyclohexadien-ylidene)methyl]-2-hydroxybenzoic acid triammonium salt | ImageFile = Aluminon.svg | ImageSize = 200px | ImageAlt = Skeletal formula of aluminon | ImageFile1 = Aluminon_ions_spacefill.png | ImageAlt1 = Space-...»)
(разн.) ← Предыдущая версия | Текущая версия (разн.) | Следующая версия → (разн.)
Перейти к навигацииПерейти к поиску

Шаблон:Chembox

Aluminon, the triammonium salt of aurintricarboxylic acid, is a dye often used to detect the presence of the aluminium ion in an aqueous solution. Aluminon forms a red complex salt in combination with Al3+.[1]

Файл:Lake pigment made from aluminon and ferric ions.jpg
Deep purple pigment in a neutral aqueous solution. Made from aluminon and ferric (Fe3+) ions.

In addition to its use in qualitative inorganic analysis, aluminon has applications in pigment production. It forms brilliantly colored lake pigments with many metals. The pigments are red in combination with Be2+ and Ga3+. The pigment is deep purple or reddish-brown in combination with Fe3+. Color of a particular pigment in acidic solutions may change: aluminon and Sc3+ form red pigments if the solution is acidic, but otherwise the solutions are colorless.[1]

Aluminon is prepared by reacting sodium nitrite with salicylic acid, adding formaldehyde, then treating with ammonia.[2]

See also

References

Шаблон:Reflist

Шаблон:Ammonium salts Шаблон:Salicylates

Партнерские ресурсы
Криптовалюты
Магазины
Хостинг
Разное

  1. ↑ 1,0 1,1 Шаблон:Cite journal
  2. ↑ Merck Index, 13th Ed.
Источник — http://wikihandbk.com/ruwiki/index.php?title=Английская_Википедия:Aluminon&oldid=13092776