Sodium Tungstate Solubility

Sodium tungstate is a highly soluble compound in water, with a solubility of approximately 143 g/L at 25°C. This high solubility arises from the compound's ionic nature, as it dissociates completely into sodium cations (Na+) and tungstate anions (WO4^2-) in aqueous solution. The solubility of sodium tungstate can be influenced by factors such as temperature, pH, and the presence of other ions in solution. At higher temperatures, the solubility of sodium tungstate increases, while at lower pH values, the solubility decreases due to the protonation of the tungstate anion. Additionally, the presence of competing ions such as calcium or magnesium can reduce the solubility of sodium tungstate through the formation of insoluble precipitates. Overall, sodium tungstate exhibits high solubility in water under normal conditions.