NGT21-4-03
1941
A contribution to the determination of manganese in silicates
21
4
268-271

The usual method of determining manganese in silicates is a colorimetric comparison of KMnO4 with a standard solution after oxidizing with KJO4 (1). This method works fairly well when the amount of manganese to be determined does not exceed 0.5 % of the silicate. For larger quantities it is not adequate since the determination of aluminium by difference depends upon an accurate determination of manganese and iron.

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