Potassium Pyroantimonate

Fig. 11 . foetus after cytochemistry for calcium using potassium pyroantimonate, showing an intense labeling in the hydrogenosome matrix (arrows). N, nucleus. Bar = 300 nm. (From Benchimol et al. 1982b). b Cytochemical detection of acid phosphatase presented positive reactions not only in lysosomes (L) but also in the peripheral vesicles of the hydrogenosomes (H). Bar = 100 nm. (From Benchimol et al. 2001)... 

Mild acidification of molybdate-phosphate solutions yielded the colorless [P2Mos023]"6 anion, isolated as the sodium salt48,49 The heteropoly acid containing pentavalent antimony, H3[SbMo12O40] 48 H20, was reported to have been prepared by refluxing M/20 molybdic acid with M/75 potassium pyroantimonates°), however, more work is necessary to elucidate to exact nature of molybdenum heteropoly compounds containing antimony. 

Potassium Pyroantimonate TS Dissolve 2 g of potassium pyroantimonate in 95 mL of hot water. Cool quickly, and add a solution containing 2.5 g of potassium hydroxide in 50 mL of water and 1 mL of an 8.5 100 solution of sodium hydroxide. Allow to stand for 24 h, filter, and dilute with water to 150 mL. 

Most salts of sodium are soluble in water, but the pyroantimonate, Na2H2Sb207, dissolves only to the extent of 1 part in 350 parts of boiling water. It is produced by addition of potassium pyroantimonate to a neutral or alkaline solution of a sodium salt. The double chloride with tin, and the double sulphite with platinum, Na6Pt(S03)4,7H20, are less soluble than the corresponding potassium salts. 

A Produces crystalline ppt with potassium pyroantimonate coioTB flame yellow.Sodiunu... 

Potassium Pyroantimonate, Acid. Potassium anti-monatetV). Approx K,H,Sb, 0-411,0. 

This salt has a tendency of forming rather stable super-saturated solutions, and this is the reason the test solution has to be cooled down and precipitation initiated by rubbing with a glass rod. For the same reason sodium hydroxide is added to the potassium pyroantimonate solution R in the reagent preparation so that saturation is almost reached. Both precautions are necessary to achieve a sufficient sensitivity ... 

Potassium pyroantimonate CAS 10090-54-7 Empirical H2K207Sb 4H2O Formula KjHzSbOy 4HOH Properties Wh. cryst. powd. or granules si. sol. in cold water readily sol. in hot water insol. in alcohol... 

Potassium pyroantimonate starch/protein reactant, paper/paperboard coatings dry food... 

Trimethylsilyl methane sulfonate 10090-54-7 Liquid Code XLR Potassium pyroantimonate 10094-34-5... 

Potassium phosphate HzKzOySb 4H2O Potassium pyroantimonate... 

Sodium hexakis(formato)molybdate, 3, 1235 Sodium hypochlorite alkene epoxidation manganese catalysts, 6,378 Sodium ions biology, 6, 559 selective binding biology, 6, 551 Sodium molybdate, 3, 1230 Sodium peroxoborate, 3,101 Sodium/potassium ATPase, 6, 555 vanadate inhibition, 3, 567 Sodium pump, 6, 555 mechanism, 6, 556 Sodium pyroantimonate, 3, 265 Sodium salts... 

EXERCISE 47. POTASSIUM HYDROGEN PYROANTIMONATE, K2H2Sb207-4H20... 

Sodium antimonate.—This substance is precipitated by the interaction of potassium antimonate and a concentrated solution of a sodium salt, its formation affording a means of testing for sodium. The white, amorphous salt may be regarded as the hydrated meta-antimonate, NaSb03,3 H20, or, since one molecule of water is expelled above 200° C., it may be considered a pyroantimonate, Na2H2Sb207,6H20.12 Its heat of formation from the elements is 346 4 Cal.13... 

The first cross-linking agents were borax and other boron compounds, antimony compounds e.g. ammonium pyroantimonate, potassium antimony tartrate followed by adding a dichiomate, that is oxidation of trivalent to penta-valent antimony was found to give an efficient cross-linking agent [74]. 

The compound sometimes used in medicine under the name washed diaphoretic antimony is potassium metantimonate, united -with an excess of the pentoxid 2KSbOi, SbaO . The hydro-potassio pyroantimonate, KjHjSbj07,6Aq is a valuable reagent for the sodium compounds. It is obtained by calcining a mixture of one part of antimony with four parts of potassium nitrate, and fusing the product with its own weight of potassium carbonate. 

Sodiuim bexakis(formato)molybdate, 1235 Sodium complexes crown ethers, 37 Sodium molybdate, 1230 Sodium peroxoborate, 101 Sodium/potassium ATPase vanadate inhibition, 567 Sodium pyroantimonate, 265 Sodium tetrahydroborate, 101... 

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