Spectrophotometric Determination of 1-Naphthylamine - Application to Sea and River Waters | Zendy

Dawood H. Mohammed | Zendy; Sameer A. Rahim | Zendy

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Spectrophotometric Determination of 1-Naphthylamine - Application to Sea and River Waters

Author(s) -

Dawood H. Mohammed,

Sameer A. Rahim

Publication year - 2009

Publication title -

mağallaẗ ʻulūm al-rāfidayn

Language(s) - English

Resource type - Journals

eISSN - 2664-2786

pISSN - 1608-9391

DOI - 10.33899/rjs.2009.40239

Subject(s) - molar absorptivity , catechol , chemistry , absorption (acoustics) , naphthylamine , oxidative coupling of methane , nuclear chemistry , materials science , organic chemistry , catalysis , physics , optics , composite material

The present work includes a detailed investigation of a new spectrophotometric method for the determination of 1-naphthylamine. The method is based on oxidative coupling reaction of the compound with catechol in the presence of potassium chromate as oxidant in acidic medium to form a stable purple–red coloured product which shows maximum absorption at 530 nm. The molar absorptivity is 3685 l.mol -1 .cm -1 . Beer's law is obeyed over the range of (1- 60) ppm. The method is applied to the recovery of 1

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