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Determination of free phosphoric acid in superphosphate

✍ Scribed by Yamazoe, Fumio


Book ID
126526503
Publisher
John Wiley and Sons
Year
1960
Tongue
English
Weight
484 KB
Volume
5
Category
Article
ISSN
0038-0768

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The rapid determination of free acid and
✍ Guthrie, F. C. ;Nance, J. T. πŸ“‚ Article πŸ“… 1949 πŸ› Wiley (John Wiley & Sons) βš– 260 KB πŸ‘ 1 views

## Abstract The sample of superphosphate is extracted with water, and the solution titrated with carbonate‐free sodium hydroxide in two stages with appropriate indicators. The first stage gives the free acid, and the second stage an approximate result for the primary calcium phosphate, Ca(H~2~PO~4~