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Control methods in the production of lactic acid. III. The determination of lime-bound acids by the eudiometric method

M. Gärtner and A. Šepitka

Slovak Academy of Sciences, Bratislava

 

Abstract: cf. C.A. 48, 6964d. The detn. is described of Ca-bound org. acids (I) in low-grade, highly colored molasses mash in the production of lactic acid. Lime is pptd. from the neutral solns. with Na2CO3 as CaCO3 and filtered. In an aliquot of the filtrate, excess Na2CO3 is detd. eudiometrically as CO2. An eudiometer, mechanized to such an extent that 4 detns. can be carried out at the same time, is described. From the measured values I can be calcd. with the help of the nomograms with an accuracy ±0.6%.

Full paper in Portable Document Format: 116a330.pdf (in Slovak)

 

Chemical Papers 11 (6) 330–339 (1957)

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