December 31, 2021 By admin 0

Zinc Carbonate: Application, Property & Uses

Zinc carbonate is composed of white crystals that are insoluble in water but dissolve in alkalis or other acids. Zinc carbonate is used to make creams and ointments. We will be describing in detail all of the chemical components and their uses in this article.

Zinc Carbonate, a colorless or clear solid, is found in nature and forms the Smithsonite mineral. It can be used alone or in combination with cobalt, copper, or other elements, giving it violet or green color, respectively.

ZnCO is nearly insoluble in water. However, it dissolves easily when dilute acids are used. The carbonate ion of an acidic medium forms carbonic Acid (H 2CO 3), which then becomes CO 2 2 gas and then water.

It is used to treat wounds in animals and is often included in diets to prevent the development of zinc deficiency diseases.

It helps to slow down the burning of some fibers, plastics, and rubber that come in contact with fire. It is safe for the safe separation of toxic arsenic minerals from other rocks.

It is used in toothpaste to restore dentin in whitening teeth.


It is usually formed as a secondary metal in Zinc mining deposits. However, these deposits must contain oxidation zones for Zinc carbonate. It can also be found as a sedimentary deposit and indirectly oxidized products.

It is made by grinding the Smithsonite, which was formerly known as zinc spar.

You can also make it by mixing sodium carbonate with a zinc salt (e.g zinc sulfate).


Below are the main properties of Zinc Carbonate:

  • Molecular weight 125.4 g/mol
  • Physical state: Colorless solid, or crystalline white. Rhombic crystals.
  • It melts at 140°C.
  • Solubility in water: Practically insoluble in the following: 0.000091g/100g of H O at 20°C. Dilute acids, alkalis, and ammonium salts make them soluble. It is insoluble in alcohol, ammonia, and acetone.
  • Density: 4.398 g/cm3 at 20 degC.

The Advantages of Zinc Carbonate

Because of its low level of heavy metals (5PPM), zinc carbonate is highly efficient and environmentally friendly. It provides environmental protection and economic benefits.

Zinc carbonate can be produced with copper and stainless steel using efficient equipment. This ensures that products are free from impurities before they reach the market.

To ensure uniform drying, hot air drying can be used. These products will exhibit high fluidity, uniform fineness, and specific high surfaces.


Zinc Carbonate can be used in many ways. These are the main ones:

In veterinarian applications

It is used as an antiseptic, astringent, and topical protector for animals’ wounds.

It is also useful in preventing zinc deficiency diseases.

Zinc carbonate can sometimes be administered to animals as a micronutrient to prevent diseases.

In medical treatment

It is possible to obtain some pharmaceutical products using this compound. It can be used to treat inflamed skin as a lotion or powder.

Flame retardant

It can be used to fireproof fill rubbers and other plastics that are subject to high temperatures.

It protects textile fibers from flames. It is used in the treatment of cotton textiles. It directly destroys the primary hydroxyl groups of the cellulose (-CH 2OH) and transforms them into sodium cellulose (-CH 2ONa).

The alkali’s ability to break down cellulose bonds favors greater penetration of the cellulosic chain chains. This is why ZnCO 3 is more able to penetrate the amorphous zone and facilitate its dispersion.

To make them fire-resistant, some cotton fabrics may have ZnCO 3 in the fibers. This reduces the risk of fire causing a lot of flammable gases.

To separate dangerous minerals from arsenic

ZnCO 3 has been used to test methods of separating arsenic minerals from sulfide rock (such as galena and chalcopyrite) Because this element is very toxic and dangerous for living organisms, it must be separated from all the other minerals.

This is achieved by treating the mixture of ground rocks with zinc sulfate, sodium carbonate at pH 7.5-9.0 with a xanthate complex.

The formula’s effectiveness is due to the formation of tiny ZnCO 3 particles on top of the arsenopyrite. This makes it hydrophilic (related to water), and it can not adhere to air bubbles.