Calcium nitrate (calcium nitrate) is a crystalline, very solid white compound that is odorless.
This substance is very hygroscopic and readily soluble in water. It is worth noting that calcium nitrate can quickly crystallize. In this case, three types of crystalline hydrates are formed. Its important disadvantage is the property of caking. This should be taken into account for proper storage. So, calcium nitrate should be stored in special sealed containers (polypropylene bags).
It should also be noted that under normal conditions, this compound is fire and explosion-proof, non-combustible and stable in the range of -60 - +155 ° C, but when working with it, protective clothing and personal protective equipment should be used .
Calcium Nitrate: Application
The composition of calcium nitrate includes 15% nitrogen, as well as 26% CaO, which allows it to be widely used in agriculture to fill the lack of these elements in the soil, as well as for plant nutrition.
A sufficient nitrogen concentration is necessary for the development of leaf mass, the synthesis of amino acids, proteins and chlorophyll. Calcium is responsible for the formation of new cells, helps to strengthen the trunk and roots of plants. Given this, calcium nitrate is used for yellowing leaves and coagulating them with a ring, the appearance of dotted necrosis in the form of small round spots of dark brown color, as well as with a weak root system, its decay, and termination of plant stem growth. In addition, the use of this fertilizer prevents the development of apical rot in tomatoes, as well as burns on lettuce leaves. It is also worth noting that calcium nitrate, when introduced into acidic soil, eliminates the excessive concentration of iron and manganese.
Calcium nitrate is used in the form of liquid root or foliar top dressing. In this case, drip irrigation systems, special installations, hose, fan or knapsack sprayers can be used . I must say that the norm of the working solution of calcium nitrate is generally accepted and depends on the type of fertilizing and the type of plants.
It should also be noted that calcium nitrate is a physiological alkaline fertilizer, therefore, it can be used for all
types of soils. It can not be combined with simple superphosphate, but calcium nitrate is allowed to be combined with other fertilizers immediately before use. After the work, wash your face and hands thoroughly with soap.
I must say that calcium nitrate is used not only as a fertilizer for plants. It is also an additive for concrete, which can significantly increase its strength. In addition, this compound prevents corrosion of the reinforcement, protects building materials from low temperatures, is used in the production of brine refrigerators, various reagents and fiberglass, as well as an important component of explosives.