Do you know the chemical calcium carbonate formation and the main usage of it? As you know, the chemical and mineral materials have differences with each other, being natural is the main difference between them, so, the values are dissimilar too. Calcium carbonate is both mineral and chemical material in the world of industry. The main uses for calcium carbonate will mention in this article. Follow to get more.
How is calcium carbonate formed in nature?
Generally, calcium carbonate is a kind of mineral material and can be made naturally. The calcium carbonate organizes more than 4% of the earth’s crust. So, it can be found in all parts of the world.
This material became very useful and famous these days and there are thousands of different applications for it and it is why this material is one of the most popular ones in the whole world. Calcium carbonate is found in two forms of natural and artificial.
The pearl is made of natural calcium carbonate and if you prepare a type of this material, you can feel the smell and color of it as well. So, calcium carbonate formed in the ocean is also available to use for industries. They also sell at higher prices because of labor and the value of sources. It shows that calcium carbonate food grade is too much important for the food industry in many related companies if you are seeing the ingredients of the foodstuffs, you will see the name of this material on its case.
The Iranian manufacturers are also active in producing bulk volumes of this material at different quality and present them at a dissimilar price. This country also contains hundreds of suppliers who are importing a thousand tonnes of this material to different areas. The calcium carbonate formed in nature is too better than chemical and human-made ones because of its valuable texture.
Moreover, the calcium carbonate in rocks is another natural source, the marble stone, gypsum plates, and limestone which are mined from different places in the whole world annually.
The natural ones are exclusively in some of the materials such as:
- Egg crust
- Marble stone
There are other natural sources that are located out of the earth and some of the supernatural sources. Inside this compound, there is another type of similar substance named as calcium oxide! Calcium oxide or CaO is made of lime, in other words, the basic compound of lime is this material. There are differences between calcium carbonate and calcium oxide but both of them can be used in the same applications. The calcium oxide formula is a combination of two first words and one type in the second word to realize it easily in chemical articles and some of the professional charts.
How is calcium carbonate made?
As it said, the sources of calcium carbonate are spread in the whole world and according to these materials, the chemical or natural sources. There are hundreds of countries are accessing these sources and produce calcium carbonate at bulk volumes, but all of these produced are not graded in the global market, only a few number of them are available in the markets. Generally, the production lines of this useful material are included in:
The sedimentation of the shells from fossilized snails and other different sea creatures such as shellfish. Some of the discovered extraterrestrial sources had been found amounts of calcium carbonate in planets such as Mars. Moreover, biological and geological sources are more possible to mine. The main compounds of this mineral are carbon, oxygen, and calcium. The pure calcium carbonate is produced by marble stones but it also can be prepared by passing the carbon dioxide into a calcium hydroxide solution. In this method, the water added to give carbon hydroxide, then the carbon dioxide will pass through this solution to precipitate the desired and appropriate amount of calcium carbonate. In many industries, the main way to produce calcium carbonate is extracting it by mining or quarrying.
Calcium carbonate can be found in pure and impure compounds according to the quality of used raw material. The calcite, vaterite, and aragonite are other pure sources. In the past year, thousands of tonnes of this material were imported and sold to many companies for different kinds of industries. In fact, the main applications of this material are included in the below list:
- Tile, ceramic and enameling industry
- Paper and wooden craft industries
- Hues and covering colors
- Construction and raw materials for building
- Medicinal usages especially veterinary
The calcium carbonate granules are divided into different sizes and according to the company packing. As you see, these industries are the common types of product lines in the whole world and people use them widely. for example, tile and ceramic are using in the whole world in a wide range of variety and quality. Homes, workspaces, commercial spaces, official buildings, department facades and … are all used in different places. So, the trades of this material is very important for the global markets.
What are the main uses for calcium carbonate?
The global market of calcium carbonate is related to many different countries due to the developed lines of production. In other words, the highest levels of these materials are importing from different country producers like:
- United States
and several other ones. These countries are producing more than millions of tonnes in one year and export them to demanded areas. Asian countries are top consumers of this kind of material but it is important to pay attention to the quality of these materials. Each kind of these countries presents a different quality of calcium carbonate to the demanded countries.
Inside its hundreds of usages, there are also some of the side effects for this material in case of not observing the cautions and overuse the unlimited amounts to your material, especially, the medicinal materials that are used bu human and acts as a treatment. There are too many unsafe and dangerous materials that are produced by this compound and it is completely harmful to human health.
If you are active in chemical industries, you surely have heard the name of ultrafine calcium carbonate. This name relates to the size of caco3 which is belonged to nanoparticles. This is the best and most special type of calcium carbonates that have nanometric effects and some of the specific performances. The usages of this substance are widely covered different kinds of applications in various industries such as:
- Printing ink
All of these usages are highly performing in a better range of quality. In this size, the operating conditions are controlling by specific surface areas. But it is important for the buyer that what are the exact applications of this type of material. the ultrafine or coated calcium carbonate has more applications at the same time; several types of this usages are including in below list:
- Calcium carbonate can increase the wear resistance and film strength in wooden coatings
- It is widely used in different powder coating for high gloss or semi-gloss coating products.
- Ultrafine calcium carbonate uses in inks and dispersibility exhibits
- Coated calcium carbonate has filling effects on the latex paint as a body pigment an make it uniform and white.
- It has wide usages in automotive paint uses for anti-stone coating and automobile topcoat
So, this type also purchased by different centers and companies for different applications in systematic and industrial efficiencies.
Is calcium carbonate a mixture?
The chemical articles are known as hard and uncomfortable subjects when we want to get new information. Mostly, these fields of articles are hard to understand and related people and persons can completely know what is they say at the moment. Calcium carbonate thermodynamically is a stable form of CaCo3 under the normal condition which is called hexagonal. The other forms also can be prepared, orthorhombic, denser, and hexagonal can occur as the mineral vaterite.
By the way, nano-size caco3 is another professional and new generation of this material which had been produced after hundreds of tests and experiments in the whole laboratories of the countries which are active in produce it.
The synthesis of nano-size caco3 are contained under special conditions; In fact, they synthesized via heat treatment of a precursor and some of the solid-state reaction. So, the investigated items must be accomplished by several exclusive items such as the quantity of surfactant and calcination temperature, these items are the effects that had been investigated in this process.
After that, it is time to characterize the produced with different titles such as:
- Scanning electron microscopy
- Fourier transform infrared
- X-ray diffraction
- Transmission electron microscopy
These characterizations are known as the common types of this material in related articles and markets as well. Nanoparticle caco3 can be used in many accurate experiments because of their nano sizes. This is one of the high price materials in the whole global markets through all of the chemical materials.
How is calcium carbonate formed in the ocean?
There are the largest pools of reactive carbon on the planet in the ocean stores. These stores are called DIC and introduced as the result of the dissolution of atmospheric carbon dioxide into the seawater. Generally, the ocean carbon cycle or marine carbon cycle. This is a kind of composing process which exchanges the carbon between a large variety of pools within the ocean between Earth’s interior, atmosphere, and seafloor.
The ocean carbon cycle is mainly a central process to the global carbon cycle that contains both inorganic and organic carbon sources. There are three main processes or pumps that make up the marine carbon cycle will bring the atmosphere carbon dioxide into the ocean interior. These three processes are included in:
- Solubility pump
- Biological pump
- Carbonate pump
In fact, the total active pool of carbon at the Earth’s surface less than 10.000 years is estimated at roughly 40.000 gigatons. The gigatons can be measured by the weight of approximately 6 million blue whales. This must be simple, in other words, to get the calcium carbonate, you have to get some CO2 into the seawater, then, the animals such as shellfish, pearl and … have the sources of calcium ions into their system, putting these two inside together will make the calcium carbonate. Of course, this description is a very simple version of processes but in reality, it is a very complex process system until the calcium carbonate produced naturally. There are hundreds of professional articles that describe all the processes clearly; you can go to the related websites and get your appropriate description.
How is calcium carbonate used in cement manufacture?
According to the usages of calcium carbonate, all of these industries may use this mineral in a different way. For example, the cement manufacturers heat the cement with the limestone or chalk which are strong sources of calcium carbonate with other materials such as clay into a kiln. The temperature has to be (1450 C) or (2640 F). This process called calcination, it will liberate the carbon dioxide molecule from the calcium carbonate to form the oxide or quicklime.
In fact, calcium carbonate helps the hardening level of cement. The cement had been produced from the 16th century as a formal activity. The types of cement came from those times until now. The powder is the main shape of produced cement in the global market.
As it said, the stock of this compound is in different parts of the world and according to hundreds of different usages, all of the countries are using this chemical material for producing thousands of commodities. As you know, this is a professional compound and you can not find it in public stores, so, the related centers and institutes mostly use it for professional purposes.
The annual production of this compound shows that a huge volume is trading with other countries, which means the exportation of calcium carbonate is more than calcium oxide or even the calcium bicarbonate is too much to demand countries. Generally, the producer and exporter countries are included in below list:
- United States
Maybe there are other countries which are active in producing this kind of material but the listed areas are the ones which have wide and collective productions in the whole world. In fact, they are well-known through the global markets more than other producers.
These materials have to be tested in different ways and in case of assuring they start to spread the materials to all of the parts of the world. Moreover, there some importer countries that widely trade different calcium derivatives in bulk volumes. the name of these countries will mention in this article.