Antimonyl

Potassium Antimonyl Tartrate (Tartar Emetic). C4H40 KSb0,... 

Tartaric acid is noteworthy for a) the excellent way in which the majority of its salts Crystallise, and h) the frequent occurrence of salts having mixed cations. Examples of the latter are sodium potassium tartrate (or Rochelle salt), C4H40 NaK, used for the preparation of Fehling s solution (p. 525), sodium ammonium tartrate, C4H OaNaNH4, used by Pasteur for his early optical resolution experiments, and potassium antimonyl tartrate (or Tartar Emetic), C4H404K(Sb0). The latter is prepared by boiling a solution of potassium hydrogen tartrate (or cream of tartar ) with antimony trioxide,... 

Add 5 g. of potassium hydrogen tartrate and 5 g. of antimony trioxide (each being finely powdered) to 30 ml. of water contained in a small flask, and boil the mixture under a reflux water-condenser for 15 minutes. Then filter hot, using a Buchner funnel and flask which have been preheated by the filtration of some boiling distilled water. Pour the clear filtrate into a beaker and allow to cool. Potassium antimonyl tartrate separates as colourless crystals. Filter, drain and dry. Yield, 5 g. The product can be recrystallised from hot water, but this is usually not necessary. 

Sodium antimonyl tartrate [34521-09-0] M 308.8. Crystd from water. Sodium arsenate (7H2O)... 

This ring system was prepared by treatment of quinoline derivative 786 with antimonyl chloride to give 787. Quinoline derivative 786 was prepared by Mannich reaction on 2,8-dihydroxylepidine with diethylamine and formaldehyde to afford the respective diethylaminomethyl derivative that followed by subsequent nitration. The schistosomicidal activity of 787 was studied (80MI66) (Scheme 138). 

Kaiium, n. potassium, -alatm, m. potassium alum, -azetat, n. potassium acetate, -bor-fluorid, n. potassium fluoborate. -brech-weinstein, m. antimonyl potassium tartrate, tartar emetic. 

Reagents. 0.005 M Potassium antimonyl tartrate solution. Dissolve 1.625 g of the solid in 1 L of distilled water. Dilute 25.0 mL of this solution to 250 mL with 1M hydrochloric acid which is 0.05 M in potassium bromide. 

Standard antimony solution. Dissolve 0.2668 g antimonyl potassium tartrate in redistilled water, add 160 mL concentrated sulphuric acid, and dilute to 1 L with water in a graduated flask. 

Metals may also be linked through an oxygen or nitrogen atom to form a stable metal complex without a carbon-metal bond. These include metal complexes of ethylenediamine tetraacetate (EDTA), diethylenetriamine pentaacetate (DTPA), or ethylenediamine tetramethylphosphonate (EDTMP). Metalloid compounds include antimonyl gluconate and bismuth salicylate. 

Since both Bi3+ and Sb3+ cations belong to the same group of the periodic table, the formation of antimonyl ion from antimony(III) ion upon sonication seemed to be similar to that as suggested in case of bismuth earlier, following the similar sequences of steps as under ... 

Antimonyl chloride (sometimes called antimony oxychloride) is known as a "basic chloride." It is insoluble in water, but aqueous solutions of the trihalides can be made if enough HX is present to prevent hydrolysis. Adding water to reduce the concentration of acid causes the oxychloride to precipitate. 

Yoshimura et al. [193] carried out microdeterminations of phosphate by gel-phase colorimetry with molybdenum blue. In this method phosphate reacted with molybdate in acidic conditions to produce 12-phosphomolybdate. The blue species of phosphomolybdate were reduced by ascorbic acid in the presence of antimonyl ions and adsorbed on to Sephadex G-25 gel beads. Attenuation at 836 and 416 nm (adsorption maximum and minimum wavelengths) was measured, and the difference was used to determine trace levels of phosphate. The effect of nitrate, sulfate, silicic acid, arsenate, aluminium, titanium, iron, manganese, copper, and humic acid on the determination were examined. 

This ammonium phosphomolybdate complex is yellow, but if mildly reduced by ascorbic acid in the presence of potassium antimonyl tartrate a solution of stable bluish-purple color ( molybdenum blue ) develops after about ten minutes, which has its strongest absorption at 882 pm (Fig. 4.6). Other mild reducing agents have also been used, including tin(II) chloride, or hydrazine sulfate, which give maximum absorbances at slightly different wavelengths. The intensity of the color which develops is linearly proportional to the... 

Crystal structures are available for many (N)4Co-amino acid complexes (Table I). Many of the diastereomers (AS, AS) in the bis-en series have been resolved using classic crystallization (usually via bromocamphor sulfonate, arsenyl-, or antimonyl-tartrate salts) or ion exchange methods (Table II). Reversed-phase ion-pair HPLC, using aryl phosphate or aryl/alkyl sulfonate ion pairing reagents in MeOH/ H20 eluent, has allowed diastereomer separations to be carried out on analytical amounts (28) (Table II). 

Note In this experiment, the phosphorus in water samples is determined by visible spectrometry following a reaction of the phosphates in the sample with potassium antimonyl tartrate, ammonium molybdate, and ascorbic acid. All glassware should be washed in phosphate-free detergent prior to use to avoid phosphate contamination. 

Potassium antimonyl tartrate solution. In a 250-mL Erlenmeyer flask, dissolve 0.45 g of potassium antimonyl tartrate in about 50 mL of distilled water. Swirl gently until dissolved, and then dilute to 100 mL and swirl to make homogeneous. Prepare just prior to the run. 

G) T. Thomson F.W. Whitworth, USP 2304037(1943) CA 37, 2938(1943) (NC propint contg 1—5% of an antimonyl compd free from halogens and contg a combined alkali metal, such as tartar emetic, which serves as an antiflash 8c antifouling ingredient)... 

In Refs. 3-5, potassium antimonyl tartrate was used as a source of Sb. While the deposition conditions appeared to be almost identical in all cases (other than the silicotungstic acid added in some cases in the latter two studies), there were some unexplained differences in structural and electrical properties (the latter shown in the table). The lower resistivities obtained in the first study were mirrored by higher carrier concentration (2 X 10 cm vs. 10 cm ) and slightly higher mobility (14 vs. 10 cm V sec ). 

S. SeadUy dissolred by a hot solution of hydric potassio tartrate (cream of tartar), forming potassic antimonylic tartrate (tartar emetic). —... 

K antimonyl tartrate. This process is particularly suitable for use in situ formulation and mixing)... 

Antimony Azide. See under Azides, Inorganic Antimony Chloride. See under Chlorides Antimonyl Potassium Tartrate. See under Tartrates... 

The salts of basic tellurium are colourless and are easily hydrolysed in dilute aqueous solution with formation of the dioxide. The addition of tartaric acid checks the separation of the dioxide on account of the formation of the stable acid tellurium tartrate Te(IIC4H406)4,5 which can be obtained in the crystalline condition, as also can the silver telluryl tartrate Aga(Te0)(C4H406)2, analogous to potassium antimonyl tartrate.6... 

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