ph of aqueous mixtures of potassium dihydrogen phosphate and disodium hydrogen phosphate at 0 degrees to 60 degrees C

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Calcium sucrose phosphate Dicalcium phosphate dihydrate Disodium hydrogen phosphate1 Phosphoric acid1 Sodium dihydrogen phosphate Sodium dihydrogen phosphate monohydrate

1 These ingredients are nonmonograph except when used to prepare acidulated phosphate fluoride treatment rinses identified in § 355.10(a)(3) of this chapter. for marketing. In the absence of an approved new drug application or abbreviated new drug application, such product is also misbranded under section 502 of the act. (c) Clinical investigations designed to obtain evidence that any drug prod...

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Sodium dihydrogen phosphate Sodium dihydrogen phosphate monohydrate

1 These ingredients are nonmonograph except when used to prepare acidulated phosphate fluoride treatment rinses identified in § 355.10(a)(3) of this chapter. 201(p) of the Federal Food, Drug, and Cosmetic Act (the act), for which an approved application or abbreviated application under section 505 of the act and part 314 of this chapter is required for marketing. In the absence of an approved n...

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pH of Solutions of Potassium Hydrogen d-Tartrate from 0° to 60°C

Al t hough it is impossible to est ablish a t hermodynami c scale of hydrogen-io n a ctivi ty, Ug, t he N BS pH stand ards are assigned pH values that approa ch as closely as possible log U R in dilute b uffer solutions. In order to avoid t he un cer tainti es of t he liquid jun ction, electromotive-fo rce measurements of hydrogen-s ilver chloride cells lVithou t liquid jun ction were used to o...

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Buffer Solutions of Potassium Dihydrogen Phosphate and Sodium Succinate at 25 °C

A buffer mixture consist in g of eq ua l molali t ies (m ) of potass ium dihydrogen phospha te and sodium succina te is proposed as a useful reference poin t in the study of acid-base equilibria, b ridging t he present gap be tween pH 5.5 a nd pH 6.8. The p(aH'YCI) at 25 °0 has been determined by elect.romo tive-fo rce measuremen ts for fi ve buffer solu tions in which m varied from 0.005 to 0....

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ژورنال

عنوان ژورنال: Journal of Research of the National Bureau of Standards

سال: 1945

ISSN: 0091-0635

DOI: 10.6028/jres.034.020