Antimony salts of greater significance in industry and medicine are antimony sulfate, antimony, potassium, sodium antimonate, lead antimonate, antimony lactate, antimony potassium tartrate and sodium antimony tartrate and sodium antimonate thiosulfate Etc., its preparation method, physical and chemical properties, and uses are listed in the following table.
Physicochemical properties and uses of inorganic salts
species | Physical properties | Chemical properties |
Barium sulfate Sb 2 (SO 4 ) 3 | Colorless flash needle crystal, Density 3.62g∕cm 3 | Deliquescent in the air, in fact, insoluble in water, with a small amount of water can form hydrated barium sulfate crystals, partial hydrolysis can be partially diluted |
Potassium citrate K[Sb(OH) 6 ] | Refined potassium citrate is white crystal | Slightly soluble in hot water only, the solubility of sodium citrate is much smaller than that of potassium salt , and it can be used as a precipitant for sodium salt. |
Sodium citrate NaSb(OH) 6 or NaSbO 3 ·1∕2H 2 O | Tridecanoic acid, sulfonic acid and pyrophthalic acid and pentavalent hydrazine, decanoic acid, citric acid and pyroic acid can form corresponding sodium citrate when reacting with sodium hydroxide. Industrially significant is 2NaSbO 3 ·6H 2 O and NaSbO 3 ·1∕2H 2 O | All kinds of sodium citrate are slightly soluble in water, inorganic acid and tartaric acid |
Lead citrate Pb 3 (SbO 2 ) 2 | The trade name Naples yellow is abbreviated as yellow, orange crystal | Insoluble in water |
Lactic acid Sb(C 3 H 5 O 3 ) 3 | Brownish yellow powder | Soluble in water, made of cerium oxide and lactic acid |
Potassium oxyhydroxide K(SbO)C 4 H 5 O 6 ·1∕2H 2 O | It is called tartar in medicine and is white and tasteless. | Soluble in water and glycerol, insoluble in ethanol |
Sodium ethoxide tartrate Na(SbO)C 4 H 5 O 6 · 1∕2H 2 O | White hygroscopic crystals or powders have a sweet taste and are less toxic than tartar | Soluble in water, insoluble in alcohol |
Sodium thiophthalate NaSbS 4 ·9H 2 O | Commercially known as Schlippes salt as a brown powder | Slightly soluble in water |
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