[Name] alkaline light yellow o / Auramine O
[molecular formula] C17H22N3Cl
[relative molecular weight or atomic weight] 303.84
[melting point] 250 ℃
[product use] mainly used for dyeing of vinegar fiber and cotton fabrics, as well as paper, leather, paint, etc
[properties] yellow uniform powder, soluble in cold water, easily soluble in hot water, bright yellow, soluble in ethanol, yellow. When the temperature of its aqueous solution exceeds 70 ℃, it will decompose into tetramethylbenzophenone. Its aqueous solution is colorless when added with concentrated sulfuric acid, and pale yellow after dilution.
[dissolution] difficult to dissolve in cold water and ether, easy to dissolve in hot water and ethanol.
[purpose]
Low light fastness. It is mainly used for dyeing hemp, paper, leather, straw woven goods, rayon, etc. it is also used for printing and dyeing cotton goods. Its lake is used for making wallpaper, color paper, ink and paint. For acetate fiber; Mordant dyed cotton, but with low fastness and bright color, can be used to make green or red. It can also be used for leather; Paper; Dyeing of hemp and viscose. Alkaline can be used for oil; Fat; Coloring of paint, etc. Lakes can also be prepared for use in inks.
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