Ferric hypophosphite

In 1955, patents were issued for a nontoxic, lead-free, rimfire priming mixture which used the double salt, ferric styphnate-ferric hypophosphite, and for a glassless rimfire priming mixture which used a triple salt, potas- ... 

Note III. For ferric hypophosphite, B.P.C. To 1 g add 10 ml of nitrohydrochloric acid (prepared by mixing cautiously 20 ml of concentrated nitric acid and 80 ml of concentrated hydrochloric acid, allowing... 

Solution of Ferric Hypophosphite, B.P.C. is assayed from the hypophosphite content, as above, using 10 ml of a 1 in 20 dilution and adding 10 ml of water before adding the potassium iodide. 

Copper.—In an aliquot part of the hydrochloric acid solution obtained in determination No. 2 (above) the ferric salts are reduced by means of sodium hypophosphite and the copper then precipitated with hydrogen sulphide, the precipitate being dissolved in nitric acid and the copper then determined electrolytically. 

L. P. de St. Gilles, and I. M. Kolthoff, found that potassium permanganate oxidizes hypophosphorous acid completely to phosphoric acid. L. Amat found that the oxidation proceeds more quickly the more cone, the soln., the more acidic the soln., and the higher the temp. at ordinary temp., and in dil. soln., the oxidation is incomplete. If the soln. be too hot, some permanganate may be decomposed without interaction with the hypophosphorous acid. The reaction was studied by I. M. Kolthoff. M. Major, and A. Sieverts found that reduced iron readily dissolves in a hot soln. of sodium hypophosphite ferric salts are reduced to the ferrous state and ferric alum reacts at the temp, of the water-bath, while phosphorous acid is not attacked after several hours. 

Fe3(H2P02)5(0H)3]H2P02-f H20. If triferric hydroxyhexahypophosphito-dihypophosphite be warmed with a soln. of potassium hypophosphite, there is formed potassium aquopentahypophosphitoferrate, K2[Fe(H20)(H2P02)5l, and similarly for sodium aquopentahypophosphitoferrate, Na[Fe(H20)(H2P02)5]. Another series of complex ferric hydroxy- or aquohypophosphites has been prepared ... 

Hypophosphlie of Iron 4642 Fe(H2F02)i Ferric hy phosphite. Hypophosohlte of lime Ca(H2F02)2 Calcium hypophosphite. 

Thiabendazole hypophosphite salt 28631-35-8 Dichlorprop-P Duplosan DP 28631-63-2 Cumene sulfonic acid Eltesol CA 65 Eltesol CA 96 Manro CUSA 65 Reworyl C 65 Witconate CSA 28633-45-6 Ferric citrate 28643-67-6 Tetramethrin 28652-04-2 Diamyl phenol... 

Sodium Hypochlorite Sodium Hypophosphite Sodium m-Bisulfite Sodium Pyrosulfite Nitric Acid Zinc Bromide Colloidal Sulfur Sulfur Ferric Chloride Ferric Choride Iron (III) Chloride Iron Perchloride Dipentene p-Menthadiene... 

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