Potassium sodium tartrat

Rochelle salt, see Potassium sodium tartrate 4-water Rock crystal, see Silicon dioxide Rutile, see Titanium(IV) oxide... 

Potassium sodium tartrate (4H2O) [6381-59-5 (4H2O) 304-59-6 (R.R)] M 282.3. Crystd from distilled water (1.5mL/g) by cooling to 0°. 

Parts Potassium sodium tartrate 4 Parts Tartaric acid... 

Pinksalz, n, pink salt (ammonium chlorostan-nate, (NHilaSnCU less commonly, potassium sodium tartrate), -bad, n, pink-salt bath. Pinne,/, (Tech.) pin, peg, tack (of a hammer) peen quill feather. 

The introduction of reversible redox indicators for the determination of arsenic(III) and antimony(III) has considerably simplified the procedure those at present available include 1-naphthoflavone, and p-ethoxychrysoidine. The addition of a little tartaric acid or potassium sodium tartrate is recommended when antimony(III) is titrated with bromate in the presence of the reversible... 

Procedure. The solution should contain antimony(III) (0,1 -0.2 g). Add a slight excess over the calculated quantity of potassium sodium tartrate to avoid the formation of basic salts upon dilution. Dissolve approximately five times the theoretical quantity of pure pyrogallol in 100 mL of air-free water, add this all at once to the antimony solution, and dilute to 250 mL, After 30-60 seconds... 

Potassium sodium tartrate (Rochelle salt) was purchased from Fluka (purum p.a. grade). The quantity of salt solution specified was found to be optimal (2 mL/mmol of DIBAL-H). Use of less salt resulted in incomplete complexation. The submitters reported similar yields with stirring overnight. 

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 ... 

Rochelle salt See potassium sodium tartrate. ro shel.solt)... 

Seignette salt See potassium sodium tartrate. sen yet, s6lt selective inhibition See selective poisoning. sl lek tlv. In a bish-an selective poisoning chem Retardation of the rate of one catalyzed reaction more than that of another by the use of a catalyst poison. Also known as selective inhibition. si lek-tiv poiz-an-it) ... 

An experiment you may have carried out in previous years Involves the reaction of a solution of potassium sodium tartrate (Rochelle salt) with hydrogen peroxide, which Is catalysed by cobalt(ll) chloride solution. 

C 2.0 g potassium-sodium tartrate (Seignette salt) in 100 ml ddH20... 

Chlorpromazine formed an insoluble 1 1 complex with lead picrate, and 5 3 complexes with the picrates of cadmium, copper, and zinc [70]. The sample (0.1 g) was dissolved in 15 mL of 95% ethanol, and the solution adjusted to pH 9 with 0.1 N NaOH. After adding 25 mL of a 0.02 M picrate reagent (30 mL of Pb), the solution was set aside for 2 hours. The precipitate was collected on a sintered glass fuimel, and the unconsumed metal in the filtrate was titrated directly with 0.02M EDTA at pH 10.4 (after adding 0.5 g of potassium sodium tartrate for Pb). Eriochrome black T was used as the indicator. 

Seventy-five grams of potassium sodium tartrate (Rochelle salts) are mixed with 75g of sodium hydroxide in 600ml of warm water and 50g of copper sulfate 5-hydrate are dissolved in the liquid to give a deep blue solution... 

DOUBLE SALT. A hydrated compound resulting from crystallization ol a mixture of ions in aqueous solution. Common examples arc the alums, made by ciystallizing from solution either potassium or ammonium sulfate and aluminum sulfate Rochelle salt (potassium sodium tartrate), made from a water solution of potassium acid tartrate treated with sodium carbonate and Mohr s salt (fertous ammonium sulfate), crystallized Iruin mixed solutions of ferrous sulfate and ammonium sulfate. 

Sodium tartrate may be replaced with disodium tartrate, potassium sodium tartrate, or sodium citrate for better solubility. 

Potassium sodium tartrate (Rochelle salt) is believed to play a complex forming role at both anode and cathode. Thus, the tartrate may complex with the initial products of electrolysis in the anode film and it may also form short-lived complexes in the cathode film. 

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