Molekul: Jurnal Ilmiah Kimia
Vol 1, No 1 (2006)

PENENTUAN ASAM OKSALAT SECARA SPEKTROFOTOMETRI DENGAN METODE METILEN BIRU

Irmanto Irmanto (Jurusan Kimia, Program Sarjana MIPA Unsoed Purwokerto)
Suyata Suyata (Jurusan Kimia, Program Sarjana MIPA Unsoed Purwokerto)

Article Info

Publish Date
01 Nov 2006

Abstract

A spectrophotometric method for the determination of oxalic acid has been developed, based on its catalytic effect on the redox reaction between methylene blue and sulphide, measured at the maximum absorption wavelength of 664 nm. Under the optimum conditions of 3 mL of 31 % formaldehyde; 0.8 mL of 0,067 M EDTA - Triethanolamine; 1.2 mL of 0,010 M sulphide; 2 mL of 0,0010 % methylene blue at 20 oC for 1 minute a detection limit of 0,43 mg/mL for oxalic acid determination was obtained. This method can be applied to determination of trace level of oxalic acid.

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Journal Info
Molekul: Jurnal Ilmiah Kimia
Website

Abbrev

jm

Publisher

Universitas Jenderal Soedirman

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry

Description

MOLEKUL is a peer-reviewed journal of chemistry published by the Department of Chemistry, Faculty of Mathematics and Natural Sciences, Jenderal Soedirman University, Indonesia. Publishing frequency 2 issues per year, on May and November. This Journal encompasses all branches of chemistry and its ...