Calcium nitrate tetrahydrate is a chemical compound consisting of calcium (Ca), nitrogen (N), oxygen (O), and four water molecules (4H₂O) associated with each calcium nitrate molecule.
Here are some key aspects of Calcium Nitrate Tetrahydrate:
Physical Properties:
Solubility: highly soluble in water
Appearance: white, crystalline solid
Molecular weight: approximately 236.15 g/mol.
Hygroscopic Nature: can absorb and retain moisture from the air.
CAS number: 13477-34-4
Applications:
1.Agricultural (mainly as fertilizer):
Calcium Supply: one of the primary uses of calcium nitrate tetrahydrate in fertilizer is as a source of calcium. Calcium is an essential nutrient for plants, contributing to cell wall structure, root development, and overall plant health.
Nitrogen Supply: It also serves as a source of nitrogen, another critical element required for the synthesis of proteins, enzymes, and chlorophyll. Nitrogen is vital for plant growth and development.
Fertigation: The compound is often used in fertigation, a method where fertilizers are dissolved in irrigation water and applied directly to the root zone of plants. This ensures efficient and controlled nutrient delivery.
Greenhouse and Hydroponics: Calcium nitrate tetrahydrate is commonly used in greenhouse and hydroponic systems, providing a controlled and water-soluble calcium and nitrogen source for plants.
Soil Amendment: When used in traditional soil applications, it amends the soil by providing essential nutrients and improving its overall structure.
2. Concrete Industry:
In the construction sector, it is used as an accelerating admixture in concrete. By adding calcium nitrate to concrete mixtures, the setting time can be reduced, promoting faster strength development. This is particularly useful in cold weather conditions.
3. Deicing Agent:
As a deicing agent, calcium nitrate tetrahydrate is applied to roads and sidewalks in cold climates. It lowers the freezing point of water, preventing the formation of ice.
4. Wastewater Treatment:
Calcium nitrate tetrahydrate can be used in wastewater treatment to control odors by inhibiting the growth of sulfur-reducing bacteria. The calcium ions also contribute to the precipitation of certain contaminants.
5. Nitric Acid Production:
Calcium nitrate is a precursor in the production of nitric acid, an important chemical used in various industries.
In summary, calcium nitrate tetrahydrate is widely used in agriculture to provide essential calcium and nitrogen to plants. Its applications range from traditional soil amendments to advanced cultivation methods like fertigation and hydroponics. The compound plays a crucial role in promoting healthy plant growth and preventing nutrient deficiencies in various crops.
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