CPA-mA/Chlorophosphonazo mA

English Name: CPA Ma; Chlorophosphonazo mA

Other names: 2- (4-chloro-2-phosphonate phenylazo) - 7- (3-acetylphenylazo) - 1,8-dihydroxynaphthalene-3,6-disulfonic acid

CAS No.: 86167-87-5

C24H18C1N4O12PS2=684.98

Grade: Developer

Sensitivity test for rare earth metals: acceptable

Beer's law test: qualified

Water dissolution test: qualified

Physicochemical Properties: dark purple red crystalline powder. Soluble in water, purple in neutral and acidic solutions

Purpose: biochemical research. It forms a blue complex with rare earth elements in acid medium. It is used for the determination of low-grade rare earth elements, and the determination of total rare earth and magnesium in low alloy steel and nodular cast iron

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