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Spectrophotometric determination of nitrate in the presence of chloride

โœ Scribed by Lambert, Raymond S.; DuBois, Ronald J.

Book ID
120262260
Publisher
American Chemical Society
Year
1971
Tongue
English
Weight
370 KB
Volume
43
Category
Article
ISSN
0003-2700

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Spectrophotometric determination of oxal
Spectrophotometric determination of oxalic acid in presence of glyoxylic acid and chloride
โœ G. Pierre; M.El Kordi; G. Cauquis ๐Ÿ“‚ Article ๐Ÿ“… 1986 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 370 KB

Glyoxyhc acid gives a yellow 1:l complex, [Fe-CHOC00]2+ with iron(II1). The dissociation constant, measured by two spectrophotometric methods, is K = 9.7 + 1 mol 1-l. Oxalic acid gives two complexes with iron(II1) which absorb in the same range around 400 nm. With appropriate precautions and correct