Recommended Specifications for Analytical Reagent Chemicals Benzoic, Boric, Formic, Sulfanilic, and Sulfurous Acids, Aniline, Hydrogen Peroxide, Mercuric Bromide, Potassium Biphthalate,Potassium Oxalate, Sodium Sulfite Anhydrous

Abstract

Committee on Analytical Reagents, American Chemical Society THE specifications given below are intended to serve for reagents to be used in careful analytical work. The limits and tests are based on published work, on the experience of members of the committee in the examination of reagent chemicals on the market, and on studies of the tests made by members of the committee as the various items were considered. Suggestions for the improvement of

Estimation of Acetic Acid as Impurity in Refined Formic Acid

“…THE recovery and refining of formic acid from a crude stock containing both formic and acetic acids, it was necessary from a control standpoint to have a rapid, quantitative method for estimating acetic acid in the refined product. A method was required which would be more nearly quantitative than the standard specification test (1) for acetic in formic acid. This test is semiquantitative and indicates only whether the acetic acid content is "less than 0.4%.''…”