Definition of Pyrogallic. Meaning of Pyrogallic. Synonyms of Pyrogallic

- Preferred IUPAC name Benzene-1,2,3-triol Other names 1,2,3-Trihydroxybenzene Pyrogallic acid 1,2,3-Benzenetriol Identifiers CAS Number 87-66-1 Y 3D model (JSmol)...
- as Berspeed and Superfine and revived traditional formulas like PMK, a pyrogallic acid-based developer dating back to the early days of photography. In...
- The first patent for an oxygen scavenger used an alkaline solution of pyrogallic acid in an air-tight vessel. Modern scavenger sachets use a mixture of...
- the latter in not being convertible into gallic acid, and not yielding pyrogallic acid by dry distillation. It is precipitated by sulfuric acid in red flocks...
- unlike those in common use today. An example formula follows. Part A: Pyrogallic acid 96 g, alcohol 1 oz. Part B: Pot****ium bromide 12 g, distilled Water...
- Among others, Braconnot discovered gallic and ellagic acids (1818) and pyrogallic acid (pyrogallol) which later enabled the development of photography....
- pseudo tannins and their sources are: Ellagic acid, gallic acid, and pyrogallic acid were first discovered by chemist Henri Braconnot in 1831.: 20  Julius...
- reagent used is phenol (carbolic acid crystals dissolved in water) or, pyrogallic acid or, cresol, usually termed as Pandy's reagent or Pandy's solution...
- bubbling through solutions of lead acetate, silver nitrate, and alkaline pyrogallic acid. Acidic gases (e.g. hydrogen sulfide, hydrogen chloride, sulfur dioxide)...
- Regnault was also an avid amateur photographer. He introduced the use of pyrogallic acid as a developing agent, and was one of the first photographers to...