Citation: Fu You PAN, Chang Hua GE, Hua Ding LIANG. Synthesis and Spectrophotometric Studies of 2-(2-Imidazolylazo)-5-Dicthylamino Phenol[J]. Chinese Chemical Letters, ;1999, 10(11): 949-952. shu

Synthesis and Spectrophotometric Studies of 2-(2-Imidazolylazo)-5-Dicthylamino Phenol

Department of Chemistry Taichou Teachers College Zhejiang 317000

Received Date: 16 August 1999

In this paper, 2-(2-imidazolylazo)-5-diethylamino phenol (IZAPN) was prepared, the protonation behaviour and the condition of spectrophotometric determination of cobalt with this reagent are reported.The results show that the new colour reagent reacts with cobalt to from a stable purple red complex (1:3). However, the complex formed could be changed into another species with stable absorptivity by addition of mineral acid (1+1).The.method is highly selective and sensitive and has been applied to the direct determination of cobalt in some alloys with satisfactory results.
- Synthesis,
- imidazolylazo spectrophotometry,
- cobalt
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