Bismuth sodium tartrate

Salts of organic acids like bismuth citrate, gallate, lactate, salicylate, thioglycolate, or camphorate also exist as basic compounds. Bismuth subcitrate forms a colloidal solution with molecules of the formula [BixCOHlyfCgHsO ) ] depending on the acidity of the solution. Bismuth potassium tartrate and bismuth sodium tartrate are soluble in water, but with time they decompose [1,2,5,61. 

Injection of Bismuth Sodium Tartrate, B.P, A sterile solution of bismuth sodium tartrate and usually contains 60 mg per ml. 

For assay evaporate to dryness a volume expected to contain about 0 5 g of bismuth sodium tartrate, moisten the residue with concentrated sulphuric acid and ignite at a temperature not exceeding 500°. Dissolve the residue in a mixture of 2 ml of concentrated nitric acid and 4 ml of water and complete by the general method for determination of bismuth given above, p. 127, from add 0 1 g of sulphamic acid.. . . . ... 

In a similar determination described by Lingane and Jones,11 an alloy containing copper, bismuth, lead, and tin is dissolved in hydrochloric acid as described above, and then 100 mL of sodium tartrate solution (0.1 M) is added, followed by sufficient sodium hydroxide solution (5M) to adjust the pH to 5.0. After the addition of hydrazinium chloride (4 g), the solution is warmed to 70 °C and then electrolysed. Copper is deposited at —0.3 volt, and then sequentially, bismuth at —0.4 volt, and lead at —0.6 volt all cathode potentials quoted are vs the S.C.E. After deposition of the lead, the solution is acidified with hydrochloric acid and the tin then deposited at a cathode potential of — 0.65 volt vs the S.C.E. 

Nylander reagent chem A solution of Rochelle salt (potassium sodium tartrate), potassium or sodium hydroxide, and bismuth subnitrate in water used to test for sugar in urine. m-lon-dor re,a-(3nt ... 

Before extracting bismuth and lead from ammoniacal cyanide solution add purified potassium sodium tartrate (see Section 27.2.1) to the initial acidic solution to prevent precipitation of hydrolyzable metals. 

Bismuth potassium sodium tartrate <3 Mammal, intramuscular... 

Nylander s solution (carbohydrates). Dissolve 20 g of bismuth subnitrate (BijO(OH).j(N03) ) and 40 g of Rochelle salt (potassium sodium tartrate, KNaC H 0g.4H20)in 1 L of 8% (mass/ mass) aqueous NaOH solution. Cool and filter. 

Rubidium salts impart a reddish-violet coloration to the Bunsen flame, similar to that characteristic of potassium derivatives. Like potassium, rubidium forms several salts not readily soluble, among them the chloroplatinate, perchlorate, silicofluoride, bismuth thiosulphate, and primary tartrate. It can also be detected by the formation of Bi(N02)3,2RbN02,NaN02, a yellow crystalline precipitate produced by adding a solution of bismuth nitrate and sodium nitrite to one of a rubidium salt.2... 

See American Patent, 1077462 Baiziss and Qavion, J. Amer. Ghem. Soe., 1921, 43. 583 Christiansen, ibid., 1922, 44, 2340 Fonmeau, Tr4 ouel, and B6noit, BuU. 80c. ehim., 1927, [iv.], 41, 499. Stable solutions of bismuth salts of this derivative or similar arylarsinic acids are prepared by the addition of a base such as piperazine, or sodium ctr ammonium hydromde, to a susmnsion of the salt, to render it soluble, and of a salt of an aliphatic hydroxypolybasio aciA such as potassium tartrate or citrate—British Patent, 277774 (1926) French Patent, 632834, See British Patent, 264797 (1926). 

The selectivity of the method is given first by the ability to stay dissolved in a solution containing tartrate, second by the color of the sulfide precipitate, and finally by the fact that the sulfide salt dissolves in sodium hydroxide. The first property distinguishes it from bismuth(III) and the other cations forming insoluble oxides in neutral or alkaline solutions. But since the test does not show that a precipitate is formed in pure water, which dissolves when tartrate is added, all water-soluble cations are not excluded. So it should be viewed as a trick to facilitate dissolution only and not a part of the identification. The color of the sulfide precipitate is unique, and it is the most important criterion for a positive identification if there is any doubt when judging the result, preparing a positive control would be constructive. The solubility of the sulfide salt in sodium hydroxide is a characteristic shared with, for example, the sulfide salt of arsenate, and in classic inorganic separation the sulfide precipitate solubility in hydrochloric acid or polysulfide is used instead. " ... 

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