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Study on Multicomponent Complex of\=FeSulphosalicylic AcidDMHPFTritonX100\=by Spectrophotometric Method and\=Its Analytical Application

Shaomin Liu, Pan Jiao-mai

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Abstract

The color reaction of Fe3+ with a new chromogenic agent dimethoxyhydroxyphenylflurone (DMHPF) has been investigated in presence of surfactants. The Fe3+SalDMHPFTritonX100 quaternary complex is formed in the medium of NH3H2O at pH 9.010.5 in presence of sulphosalicylic acid(Sal). The maximum absorption is at 590 nm, measuring wavelength is at 610 nm with apparent molar absorptivity of 1.3105 Lmol-1cm-1 and 9.4104 Lmol-1cm-1 respectively. The molar ratio of Fe3+ and DMHPF (nFe3+nDMHPF) is 12. Beers law is obeyed in the range of 0600 g/L for Fe3+. The method has been applied to the directly spectrophotometric determination of trace Fe3+ in industrial silicon and limestone. The results are in agreement with certified values with precision of 0.64% to 2.41% RSD(n=5).\=\=

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The color reaction of Fe3+ with a new chromogenic agent dimethoxyhydroxyphenylflurone (DMHPF) has been investigated in presence of surfactants. The Fe3+SalDMHPFTritonX100 quaternary complex is formed in the medium of NH3H2O at pH 9.010.5 in presence of sulphosalicylic acid(Sal). The maximum absorption is at 590 nm, measuring wavelength is at 610 nm with apparent molar absorptivity of 1.3105 Lmol-1cm-1 and 9.4104 Lmol-1cm-1 respectively. The molar ratio of Fe3+ and DMHPF (nFe3+nDMHPF) is 12. Beers law is obeyed in the range of 0600 g/L for Fe3+. The method has been applied to the directly spectrophotometric determination of trace Fe3+ in industrial silicon and limestone. The results are in agreement with certified values with precision of 0.64% to 2.41% RSD(n=5).\=\=

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Available abstract

The color reaction of Fe3+ with a new chromogenic agent dimethoxyhydroxyphenylflurone (DMHPF) has been investigated in presence of surfactants. The Fe3+SalDMHPFTritonX100 quaternary complex is formed in the medium of NH3H2O at pH 9.010.5 in presence of sulphosalicylic acid(Sal). The maximum absorption is at 590 nm, measuring wavelength is at 610 nm with apparent molar absorptivity of 1.3105 Lmol-1cm-1 and 9.4104 Lmol-1cm-1 respectively. The molar ratio of Fe3+ and DMHPF (nFe3+nDMHPF) is 12. Beers law is obeyed in the range of 0600 g/L for Fe3+. The method has been applied to the directly spectrophotometric determination of trace Fe3+ in industrial silicon and limestone. The results are in agreement with certified values with precision of 0.64% to 2.41% RSD(n=5).\=\=

Key concepts: Molar absorptivity, Chromogenic, Beer–Lambert law, Spectrophotometry, Chemistry, Absorption (acoustics), Analytical Chemistry (journal), Molar ratio

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Study on Multicomponent Complex of\=FeSulphosalicylic AcidDMHPFTritonX100\=by Spectrophotometric Method and\=Its Analytical Application — Research Paper | ScholarLens