Is Mg3(PO4)2 soluble or insoluble? How to Know

Is Mg3(PO4)2 soluble or insoluble in water? Perhaps this is the question that you want to know. So, based on the principles of solubility and the elaborated solubility chart, magnesium phosphate or Mg3(PO4)2 is insoluble in water. However, a small amount of Mg3(PO4)2 might dissolve but it is not counted. Let's discuss more on whether Mg3(PO4)2 is soluble in water or not.

What makes Mg3(PO4)2 soluble or insoluble in water?

As said, magnesium phosphate is insoluble in water. But it is important to understand what makes Mg3(PO4)2 soluble or insoluble in water. While magnesium phosphate is considered an ionic compound, the ions present in the compound don't dissociate in water. Some basic principles of solubility have to be taken into consideration.

To begin with, magnesium phosphate is a kind of crystalline white powder. Surprisingly, a majority of the phosphate salts are soluble in water. Whereas Mg3(PO4)2 is insoluble in water. This is because a majority of the Mg salts won't be soluble in water. Besides, Mg cations don't dissolve in water in most situations.

So, now you know if Mg3(PO4)2 is soluble in water or not. But why is it so? Is there some specific explanation for this? To get the right explanation, you can research the solubility rules for different compounds, especially the ionic ones. Hence, according to the rules, phosphate salts and carbonate salts are insoluble in water.

Mg3(PO4)2 soluble or insoluble in water: Understanding the properties

Mg3(PO4)2 is a white crystalline powder that has a melting point of about 1457K. Most of the PO salts are soluble in water. But Mg3(PO4)2 is not soluble in water because Mg salts are insoluble in water. Additionally, the Mg cations are not soluble in water most of the time. Rather, it gets dissolved in certain salt solutions.

The molar mass of magnesium phosphate is 262.86g/mol. Mg3(PO4)2 doesn't have a constant or specific boiling point. That's because it dissipates before attaining a definite boiling point. However, Mg3(PO4)2 melts at 1188 degrees Celsius. Both boiling and melting points of Mg3(PO4)2 depend on several factors such as pressure, heating rate, concentration, crystal structure, and impurities.

Although it is good to know whether Mg3(PO4)2 is soluble in water or not, let's know where the compound is utilized most.

Mg3(PO4)2 and its uses

While you got your answer if Mg3(PO4)2 is soluble in water or not, it is good to know about the uses of magnesium phosphate.

It is a common compound used to produce perfumes, toothpaste, shampoos, cosmetics, and other items.

It is used in food to control its acidity.

Mg3(PO4)2 is used in nutritional supplements to help people who have insufficient amounts of magnesium in their bodies.

It prevents deficiency of Vitamin E.

Conclusion

Is Mg3(PO4)2 soluble or insoluble in water? By now you have understood that Mg3(PO4)2 or magnesium phosphate is insoluble in water because of its chemical properties. Typically, magnesium salts don't dissolve in water. Also, the solubility rules for different types of compounds show if Mg3(PO4)2 is soluble in water or not. Mg3(PO4)2 is an important compound that plays an integral role when it comes to using it in several biological processes such as muscle contraction, nerve function, and DNA synthesis.