Indicators

Alizarin red.

Alizarin red.

Alizarin red.

Alizarin red.

Soluble in water, slightly soluble in ethanol, insoluble in benzene and chloroform. The pH value of 1% aqueous solution is 2.15, and its aqueous solution is light yellow brown. It turns yellow after adding hydrochloric acid, and turns blue purple

Soluble in water, slightly soluble in ethanol, insoluble in benzene and chloroform. The pH value of 1% aqueous solution is 2.15, and its aqueous solution is light yellow brown. It turns yellow after adding hydrochloric acid, and turns blue purple

Soluble in water, slightly soluble in ethanol, insoluble in benzene and chloroform. The pH value of 1% aqueous solution is 2.15, and its aqueous solution is light yellow brown. It turns yellow after adding hydrochloric acid, and turns blue purple

General Descriptionfor analysis and indicator.

General Descriptionfor analysis and indicator.

Alizarin Yellow R sodium salt.

Alizarin Yellow R sodium salt.

Arsenazo III.