增值税的橄榄R

R is mainly used to restore olive cotton fiber dyeing levelness good affinity for good. Reduction of olive R are used for spell color, such as dyes gray, brown, dark green, dark blue and other colors. Can also be used for dyeing viscose fiber, silk, cotton and polyester with disperse dyes Victoria-bath dyeing. Concentrated sulfuric acid in the red, produced with diluted olive green fluorescent precipitate. In alkaline hydrosulfite solution was red brown, yellow in acidic solution was brown.