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A rapid method for determining the value of “chromic acid” and the soluble chromates

✍ Scribed by Lyman F. Kebler


Publisher
Elsevier Science
Year
1902
Tongue
English
Weight
195 KB
Volume
153
Category
Article
ISSN
0016-0032

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The rapid determination of free acid and
✍ Guthrie, F. C. ;Nance, J. T. 📂 Article 📅 1949 🏛 Wiley (John Wiley & Sons) ⚖ 260 KB 👁 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~