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Soil Magnesium Analysis, Elimination of Manganese Interference in the EDTA Titration of Exchangeable Soil Magnesium

✍ Scribed by Cheng, H. H.; Kurtz, L. T.

Book ID
126274577
Publisher
American Chemical Society
Year
1960
Tongue
English
Weight
362 KB
Volume
8
Category
Article
ISSN
0021-8561

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## Abstract Under the conditions described the determination of calcium in the presence of an equivalent amount of magnesium, using Cal‐red as indicator, could tolerate up to 2.0 mg. of iron, 1.0 mg. of manganese, 3 mg. of aluminium and up to 6 mg. of phosphate in 50 ml. of solution.