Mercury Sulfate: Is It Soluble Or Insoluble?

MERCURY II SULFATE R.G. plastik şişe 100 gram


Mercury sulfate is a chemical compound with the formula HgSO4. It is a white, odorless powder that is soluble in water. It is commonly used in the laboratory as a catalyst, reagent, and analytical standard. However, there is still confusion about its solubility. In this article, we will discuss whether mercury sulfate is soluble or insoluble in water.

Solubility of Mercury Sulfate

Mercury sulfate is soluble in water, but its solubility is relatively low. The solubility of mercury sulfate in water is about 0.004 g/100 mL at room temperature (25°C). This means that only a small amount of mercury sulfate will dissolve in water.

Factors Affecting Solubility

The solubility of mercury sulfate depends on several factors, including temperature, pressure, and the presence of other ions. In general, the solubility of most compounds increases with increasing temperature. However, in the case of mercury sulfate, the solubility decreases with increasing temperature.

Insoluble Mercury Sulfate

There is another form of mercury sulfate that is insoluble in water. This form is called mercury(II) sulfate monohydrate or cinnabar. It is a red-colored solid that is commonly used in pigments and inks. Mercury(II) sulfate monohydrate is insoluble in water and other solvents.

Uses of Mercury Sulfate

Mercury sulfate has several uses in various fields. In the laboratory, it is used as a catalyst in organic reactions and as an analytical standard for mercury analysis. It is also used in the production of other chemicals, such as mercury fulminate and mercury barium cadmium copper oxide.


Mercury sulfate is a toxic substance that can cause serious health problems if not handled properly. It can cause skin irritation, respiratory problems, and damage to the nervous system. Therefore, it should be handled with care, and appropriate safety measures should be taken.


In conclusion, mercury sulfate is soluble in water but has low solubility. Its solubility is affected by several factors such as temperature and pressure. In addition, there is another form of mercury sulfate, called mercury(II) sulfate monohydrate, which is insoluble in water. Mercury sulfate has several uses in various fields, but it should be handled with care due to its toxic nature.