Calcium carbonate is known by the chemical symbol CaCO3. Shells, pearls, and the skeletons of aquatic life are all made of this ubiquitous component of minerals and rocks. Many industrial and commercial applications exist for calcium carbonate, which is utilized in the manufacture of a variety of goods.
This page will give a thorough explanation of calcium carbonate, including its history, other names, types, grades, and forms that are available as well as information on how different types are produced, technical specifications, properties, uses, packaging, safety precautions, producing nations, importing and exporting nations, factors affecting the price, and the option to purchase from Petro Naft Company, one of the biggest and most reputable companies that sell drilling products.


Calcium carbonate is a crystalline powder that is white and odorless. It has an 825 °C melting temperature and a density of 2.71 g/cm3. Although it is soluble in water, alcohol and other organic solvents have a limited ability to dissolve it. With the help of acids, the basic substance calcium carbonate may transform into salts and carbon dioxide.

Petro Naft provides Calcium Carbonate of the best quality in a variety of types and grades and exports them from Iran, Turkey, and the United Arab Emirates to other nations worldwide.

• Calcium Carbonate Iran
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Throughout the beginning of time, calcium carbonate has been known. It was utilized as a construction material and a pigment by the Greeks and Romans. It was used in the Medieval Ages as a construction whitewash and indigestion remedy. The ability of calcium carbonate to be employed in the production of paper was discovered in the 18th century, and it quickly rose to prominence as a key component. Nowadays, calcium carbonate is employed in a variety of fields, including as building, farming, drilling, polymers, and medicines.

calcium carbonate lump


Other names for calcium carbonate include oyster shell, calcite, pearl, aragonite, limestone, and chalk.


Depending on the purpose for which it is being used, calcium carbonate is offered in a variety of grades, kinds, and forms. The most popular types of calcium carbonate are precipitated calcium carbonate and ground calcium carbonate (GCC) (PCC).

Natural limestone or marble are finely ground to create ground calcium carbonate (GCC). From coarse to ultrafine, GCC is available in a range of particle sizes. GCC particles’ characteristics, such as brightness, opacity, and particle packing, depend on the size and shape of the particles.

Calcium hydroxide reacts with carbon dioxide to produce precipitated calcium carbonate (PCC), which is composed of calcium carbonate crystals. PCC comes in a variety of crystal forms, including rhombohedral, scalenohedral, and prismatic. Because to their narrow size distribution and high aspect ratio, PCC particles are the best choice for applications needing a high level of gloss, opacity, and brightness.

Calcium carbonate can be found in a variety of forms, including powder, granules, and slurry. The most prevalent form of calcium carbonate is powder, and it is utilized in many different products including paint, paper, plastics, and building materials. Granulated calcium carbonate is a feed ingredient for cattle and is used in agriculture to improve the soil. In order to increase paper quality and lower production costs, calcium carbonate slurry is employed in the papermaking process.


The grade, kind, and form of calcium carbonate should be chosen based on the intended usage. When a coarse particle size is permissible, such as in building materials and agriculture, ground calcium carbonate (GCC) is employed in such applications. In applications needing a high level of uniformity and purity, such medicines and food additives, precipitated calcium carbonate (PCC) is employed. When a tiny particle size is needed, such as in paint and polymers, calcium carbonate powder is utilized. Granulated calcium carbonate is a feed ingredient for cattle and is used in agriculture to improve the soil.

In order to enhance paper quality and lower production costs, calcium carbonate slurry is used in the papermaking business. As a concrete binder and an asphalt filler, it is also used in the construction sector. Granules of calcium carbonate are used in agriculture to enhance the condition of the soil and boost crop output. They are also used as a calcium source for animals.

Because of its capacity to assist regulate the fluid’s viscosity and pH as well as its capability to serve as a bridging agent and lessen fluid loss, calcium carbonate (CaCO3) is a mineral that is often employed in drilling fluids. During drilling, calcium carbonate is utilized in a variety of grades, varieties, and forms, including:

Finely ground, very pure calcium carbonate known as “ground calcium carbonate” (GCC) is employed as a weighing ingredient in drilling fluids. Depending on the precise drilling application, it is available in a variety of particle sizes, from extremely fine to coarse.

Calcium carbonate that has been chemically precipitated (PCC) is a synthetic type of calcium carbonate. It is used in drilling fluids as a bridging agent and fluid loss reduction. To enhance its performance in drilling applications, PCC is available in a variety of particle sizes and can be surface-treated.

In order to enhance its performance in drilling fluids, calcium carbonate has been micronized into this fine-grained form. It is often used as a weighing agent and fluid loss inhibitor.

Calcium carbonate that occurs naturally and is obtained from limestone deposits is known as natural calcium carbonate. In drilling fluids, it is primarily employed as a weighing agent and fluid loss reduction.

The grade, type, and form of calcium carbonate all affect its characteristics. Ground calcium carbonate (GCC) is a very simple and inexpensive substance to make. It has excellent brightness and whiteness, but because of its variable particle size distribution, it can perform poorly in certain applications. In applications needing a high degree of opacity, brightness, and gloss, precipitated calcium carbonate (PCC), a material with a narrow particle size distribution and a high aspect ratio, is the best choice. The tiny particle size of calcium carbonate powder makes it suited for applications requiring a smooth surface finish. Granules of calcium carbonate are ideal for usage in agriculture and construction because they have greater particle sizes and are more erosive-resistant.


Natural limestone or marble is crushed and ground into a fine powder to create ground calcium carbonate (GCC). By changing the grinding parameters, such as the grinding duration, speed, and medium, the GCC powder’s particle size can be managed. To enhance its processing and handling qualities, GCC powder can also be coated with other substances, such as stearic acid.

Calcium hydroxide and carbon dioxide combine to generate calcium carbonate crystals, which are precipitated calcium carbonate (PCC). After being removed from the reaction liquid, the PCC crystals are dried. By modifying the reaction conditions, such as the temperature, pressure, and agitation, the crystal structure and size can be managed.

calcium carbonate production factory


Calcium Carbonate Chemical Formula:

Calcium carbonate is a chemical compound with the chemical formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite and is the main component of pearls and the shells of marine organisms, snails, and eggs.

Calcium Carbonate CAS number:

The CAS number for calcium carbonate is 471-34-1. This unique identifier is assigned to the substance by the Chemical Abstracts Service (CAS) and is used to identify the substance in various scientific and regulatory contexts.

Calcium Carbonate HS code:

The HS code (Harmonized System code) for calcium carbonate is 2836.50. This code is used to classify the product for customs and trade purposes and is recognized globally.


Depending on the grade, kind, and form of calcium carbonate, different technical requirements apply. The following general requirements apply to both precipitated calcium carbonate (PCC) and ground calcium carbonate (GCC):

  • Ground Calcium Carbonate (GCC):

Whiteness: 95-98%

Particle Size: 2-20 microns

Density: 2.7 g/cm3

Moisture: <0.5%

Oil Absorption: 15-20 g/100g

pH Value: 8-9

  • Precipitated Calcium Carbonate (PCC):

Whiteness: 95-98%

Particle Size: 0.4-5 microns

Density: 2.7 g/cm3

Moisture: <0.5%

Oil Absorption: 35-45 g/100g

pH Value: 9-10


Calcium carbonate (CaCO3) is a white, odorless powder found in rocks including limestone, marble, and chalk. These are some of its essential properties:

  • Solubility: Calcium carbonate is mostly insoluble in water, although it may dissolve in acids like hydrochloric acid.
  • Melting point: At 825°C is when calcium carbonate decomposes.
  • Calcium carbonate has a density of about 2.7 g/cm3.
  • pH: Calcium carbonate can neutralize acids thanks to its basic pH.
  • Reactivity: Calcium carbonate interacts with acids to create carbon dioxide gas, which is visible as effervescence.
  • Hardness: Calcium carbonate is a moderately soft mineral, having a Mohs hardness of 3.
  • Uses: Calcium carbonate is used for a variety of things, such as making cement, making paper and pulp, making nutritional supplements, and making antacids. Moreover, it serves as a filler in a variety of goods and is utilized in the manufacturing of plastics, paint, and inks.

Overall, calcium carbonate is a versatile and significant mineral that has a variety of beneficial qualities.


While calcium carbonate is often regarded as being safe to handle, it can irritate the skin, eyes, or respiratory system if inhaled. While handling the product, it’s crucial to put on protective gear, gloves, and goggles and to keep your airways clear of dust. Spills should be cleaned up right away, and the product should be kept dry and well-ventilated while being kept away from heat and ignition sources.


Calcium carbonate producing countries:

Several nations, including Iran, China, India, the United States, and Mexico, manufacture calcium carbonate. With large quantities of top-notch limestone, Iran is one of the top manufacturers of calcium carbonate.

Calcium carbonate importing countries:

Several nations across the globe, including the United States, Canada, Australia, and European nations, import calcium carbonate. For their industrial and commercial purposes, these nations depend on the importation of calcium carbonate, which is transported in significant amounts by both sea and air.

Calcium carbonate exporting countries:

Several nations export calcium carbonate, including Iran, the United Arab Emirates, Turkey, and other nations. The main raw material used in the manufacturing of calcium carbonate is limestone, which is abundantly available in these nations. Several nations rely heavily on the export of calcium carbonate to help them satisfy the demand for the commodity on a worldwide scale.


The grade, kind, and form of the product, as well as supply and demand variables, all have an impact on the price of calcium carbonate. The cost of raw materials, manufacturing expenses, and transportation costs all have an impact on the product’s pricing. In order to make educated purchase choices, consumers must be aware of market circumstances and trends since the price of calcium carbonate can change dramatically.

The Possibility of Buying from Petro Naft Company:

One of the biggest suppliers of drilling products, such as calcium carbonate, is Petro Naft Corporation. We provide a variety of premium items at affordable costs and has vast expertise in the drilling sector.

Manufacturers have the freedom to choose the ideal calcium carbonate for their particular application because to the variety of grades, varieties, and forms that are readily available. All forms of calcium carbonate, including ground calcium carbonate, precipitated calcium carbonate, calcium carbonate powder, and granulated calcium carbonate, have special qualities that make them suited for various uses.

In summary, calcium carbonate is a versatile substance with a variety of uses. Many sectors, including drilling, medicines, and construction, can benefit from its special qualities. Since it comes in a variety of grades, kinds, and shapes, producers can choose the ideal material for any application. While the material is typically safe to handle, it is crucial to adhere to the suggested precautions and standards. To fulfill their consumers’ demands, Petro Naft Company provide premium calcium carbonate goods.


Calcium carbonate, having the chemical formula CaCO3, is a substance. It is one of the most prevalent minerals in the crust of the Earth and has several uses in numerous sectors. Following are a few typical uses for calcium carbonate:

1- Building Industry: Calcium carbonate is a common building material used in the construction business. It is an essential ingredient used in the production of cement, concrete, and other building products. These materials are given calcium carbonate to increase their tensile strength, weather resistance, and durability.

2- Pharmaceutical Industry: Antacids and other drugs used to treat heartburn, indigestion, and acid reflux use calcium carbonate as an active component. It reduces the effects of these illnesses’ symptoms and neutralizes stomach acid.

3- Food Industry: As a nutritional supplement and food preservative, calcium carbonate is added to a variety of foods. It is often present in dairy foods, baked goods, and drinks like wine and orange juice.

4- Calcium carbonate is used in the paper industry as a coating and filling agent. It reduces the quantity of pulp used to make paper goods while enhancing their brightness, opacity, and smoothness.

5- Paints & Coatings: Calcium carbonate is used in paints and coatings as a filler and a pigment extender. It helps to lower the price of the paint and enhances its color, toughness, and adherence.

6- Calcium carbonate is a filler and strengthening ingredient used in the plastics industry. It lowers the price of plastic items while increasing their strength, stiffness, and impact resistance.

7- Agriculture: To neutralize acidic soils and increase crop yields, calcium carbonate is used as a soil conditioner. It is also used in animal feed as a calcium source for cattle.

8- Water treatment: Calcium carbonate is used to clean out contaminants including organic pollutants and heavy metals from water as well as to modify the pH of the water.

8- Calcium carbonate serves a variety of industrial and commercial purposes and is a crucial component in the creation of several goods. The drilling sector is one of the main uses for calcium carbonate.

8-1- Calcium carbonate is a weighing ingredient used in drilling fluids in the drilling industry. Drilling fluids are used to flush cuttings to the surface, cool and lubricate the drill bit, and maintain pressure in the wellbore. One of the most often utilized substances for this purpose is calcium carbonate. The weight of the fluid is essential for maintaining the stability of the wellbore.

8-2- There are various benefits to using calcium carbonate as a weighing ingredient in drilling fluids. First off, it is a desirable replacement for other materials since it is non-toxic and ecologically beneficial. Second, it is affordable and easily accessible. Finally, it can be used in fewer amounts than other materials because to its high specific gravity, which lowers the total cost of drilling operations.

8-3- When choosing a grade of calcium carbonate to utilize in drilling fluids, it is important to consider the particular needs of the well. In shallow wells, finer grades of calcium carbonate are employed instead of coarser grades in deeper wells. The stability of the drilling fluid depends critically on the calcium carbonate particle size distribution, which has to be precisely managed for reliable performance.

We export the highest-quality Calcium Carbonate in different types and grades from Iran, Turkey, and the UAE to other countries around the world.

• Iran Calcium Carbonate
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• UAE Calcium Carbonate

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Calcium carbonate comes in a range of packaging options depending on the product’s form and quality. Bulk shipments are also available for large-scale industrial uses, and they can be packaged in Jumbo Bags, also known as Bulk Bags or Super Sacks, in addition to the typical 25kg or 50lb sacks. Large, woven polypropylene bags known as “Jumbo Bags” have a maximum weight capacity of 1000 kg (2204 lbs) and can carry bulk goods like calcium carbonate. The packaging of the product must protect it from moisture and other environmental factors that might harm its functionality. The packing solution for calcium carbonate will be determined by the intended use, the volume of the shipment, the distance, and the method of transportation.

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