Title: Rapid spectrophotometric determination of vanadium(V) with 1-(2′-thiazolylazo)-2-naphthol
Abstract: Abstract The sparingly soluble complex formed between vanadium(V) and 4-(2-thiazolylazo)resorcinol ( 5 ) requires extraction with chloroform, whereas maximum color development for the complex with 4-(2-pyridylazo)resorcinol ( 4 ) takes place after 60 min. Heating of reactants is required in the methods with 2-(3,5-dibromo-4-methyl-2-pyridylazo)-5-diethylaminophenol ( 3 ) and 4-(2,3-dihydroxy-4-pyridylazo)benzene sulfonic acid ( 6 ), whereas absorbance of the complex with 2-methyl-4-(4-methyl-2-thiazolylazo)resorcinol ( 1 ) is measured after 30 min. Since 1-(2′-thiazolylazo)-2-naphthol (TAN) has been found to be a sensitive chromogenic reagent ( 2 ), its reaction with vanadium(V) has been studied.
Publication Year: 1987
Publication Date: 1987-02-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 10
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot