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
Spectrophotometric determination of formaldehyde, glycollic and glyoxalic acids in the presence of glyoxal and some carboxylic acids
✍ Scribed by Lj. Josimović; O. Gal
- Publisher
- Elsevier Science
- Year
- 1966
- Tongue
- English
- Weight
- 413 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
In stutlying tile effects of irrXIiiLti0n 011 solid oxalic ;lciCl xnC1 nlnnlnniutn o.xalatc, it \V;IS ncccssar-y to clctorn~inc very snix11 ;tnlounts of glycollic acid, glyoxdic itcicl, fc.~rn~~tlclcl~yClc and glyOSill in tile prescncc of similar concentrations of tnrtaric
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The uptake of anthracene from dilute aqueous solutions onto goethite and kaolinite was investigated at 25 degrees C, first in the absence and then in the presence of three benzene carboxylic acids: phthalic acid (benzene-1,2-dicarboxylic acid), trimesic acid (-1,3,5-), and mellitic acid (-1,2,3,4,5,
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