Phosphate Solubility
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What is the solubility of a phosphate solution with a concentration of around 3% (used in steam drums and boilers)? In other words, at what temperature does it start to crystallize? It would be great if you could provide relevant information; thank you!
This question cannot be answered. Phosphate is an anion that can essentially combine with all cations other than hydrogen ions to form phosphates. Then which type of phosphate are you asking about? Since phosphate is a trivalent anion, its salts can exist in the form of dihydrogen salts, monohydrogen salts, or normal salts. Under what conditions are you asking about? Some phosphates can contain crystalline water, and there may be different amounts of such crystalline water. So, how many molecules of crystalline water do phosphates actually contain? The situations mentioned above can be combined to create many more different scenarios. So which ones are those? It would be best for you to consult reference books or manuals; they list things in more detail, and you can also choose the scenario that you consider most suitable.
Upstairs, could you recommend some commonly used reference books? Thank you! ! ! ! ! ! ! !
Specifically, it is “trisodium phosphate”; at what temperature does a 3% solution generally start to crystallize?
I searched online and found that the solubility of trisodium phosphate at 10 degrees Celsius is 8.2, and its solubility increases as the temperature rises. In other words, for this 3% solution to crystallize without concentration, the temperature needs to be lowered; the exact temperature required can be found in detailed solubility tables or curves.