Titan yellow

• Disodium -6-methyl - 2 - [4 - [2 - [4 - (6- methyl-7- sulphonato - 1,3- benzothiazol-2 -yl) phenyl] iminohydrazinyl ] phenyl] - 1,3 - benzothiazol- 7 -sulfonate (IUPAC)
• Titan Yellow
• Mimosa
• Clayton Yellow
• C. I. 19540
• C. I. Direct Yellow 9

Yellowish brown powder

• In water and ethanol (yellow)
• In sodium hydroxide solution (reddish yellow)
• In sulfuric acid ( brownish yellow)

Template: Infobox chemical / molecular formula search available

Thiazolgelb, also titanium yellow, yellow- brown dye is one which belongs to the group of triazenes and is used as a fluorescent indicator, acid - base indicator and as a reagent for magnesium.

The metal titanium is not contained in the substance ( see, however, titanium white).

Properties

At a pH value of 12.0 to 13.0, the yellow turns into a red (or Brown ).

Use

The dye is a fluorescent indicator in microscopic staining and reagent for magnesium - proof (light red precipitate ) used in body fluids, and also as a pH indicator. Nickel, zinc, manganese and cobalt ions also yield colored solutions and optionally disrupt the detection of magnesium.