Sulfarsazene

Sulfarsazene is a chemical compound with the formula , a metal indicator.

Uses

Sulfarsazene is used as a metal indicator for the spectrophotometric and titrimetric determination of Pb²⁺ ions at pH 9.8–10.0 and Zn²⁺ at pH 9.3–9.6 (color transition from orange-pink to lemon yellow).

Physical properties

Sulfarsazene is soluble in water, easily soluble in an aqueous solution of sodium tetraborate, slightly soluble in 95% alcohol, practically insoluble in acetone, chloroform, benzene.

See also

• Chrysophenine
• Bromothymol blue
• Litmus
• Methyl orange
• Phenolphthalein
• pH indicator
• Universal indicator

References