Calcium nitrate

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Calcium nitrate

Calcium nitrate (calcium nitrate, calcium nitrate) is the inorganic salt of nitric acid. The compound is strongly hygroscopic, so it is stored without access of moisture. Chemical formula CA(NO3)2.

At 500 °C starts to decompose with the release of O2 and the formation of the first Ca(NO2)2, and then CaO and NO2. Calcium nitrate under normal conditions is incombustible, fire and explosion-proof, stable in the temperature range from -60 °C to +155 °C.

Get calcium nitrate HNO3 on limestone or absorption of nitrous gases (in mainly NO2) with milk of lime. Apply calcium nitrate as a nitrogen fertilizer and to produce ultra-pure Cao.

For the preparation of granulated calcium nitrate are used low-temperature neutralization of nitric acid with limestone or natural the products of limestone.

Calcium nitrate (calcium nitrate, calcium nitrate, limestone ammonium nitrate, Ca(NO3)2 in pure form is a crystalline solid white color, odorless. Calcium nitrate and its hydrates strongly hygroscopic, so they must be stored without access of moisture. Well soluble in water. Calcium nitrate under normal conditions is incombustible, fire- and explosion. Can be produced in granular form. Granules of calcium nitrate – spherical forms of white, light gray or light beige color.

Large the amount of calcium nitrate used in agriculture as fertilizer. Calcium nitrate is a physiological alkaline fertilizer suitable for all soils and especially for zakislenia sod-podzolic soils. Calcium nitrate contribute for all crops. Especially effective for calcinit spring fertilizing of winter crops. Calcium gives strength to cell walls plants, stimulates root development, vegetative growth and development ornamental and agricultural crops (sugar beet, fodder and dining room, potatoes, maize grain and silage, cabbage, soybeans, tomatoes, beans, parsley, cucumber, strawberries, Apple trees, chrysanthemums, roses, carnations).

When feeding calcium-containing fertilizers improves the product, extended the storage time. Calcium nitrate is also used to prevent rotting tomatoes, peppers, lettuce, apples, and other diseases caused by the deficiency calcium. Calcium nitrate must not be mixed with fertilizers containing sulfates and phosphates.

Calcium nitrate is widely used in construction as concrete additives, which has complex properties. Calcium nitrate acts as an accelerator, improves the strength characteristics, it is compatible with all plasticizers (lignosulfonate, superplasticizers to naphthalene and melamine bases etc.). Calcium nitrate inhibits corrosion of rebar caused by high content of chlorides is antifreeze additive (-20 °C), and is also used in the production of building materials and dry building mixtures.

In the chemical industry limestone ammonium nitrate used as a component of the brine in refrigeration and in the manufacture of explosives. In addition, calcium nitrate is used in the production of reagents and fiberglass.

In construction, in particular, in the creation of concrete, dry stroybasa and other building materials, calcium nitrate has long appreciated due to its unique characteristics which are:

– acceleration processes, increasing the strength;

– compatibility with various plasticizers;

– increase life shvatyvanija at constant flow;

– anticorrosional valves;

– increase antifreeze sustainability.

In addition, calcium nitrate is actively exploited in a variety of fields industry: electronic, piezoelectric, chemical, color metallurgy. With her help, made the brine in the refrigerator, produce chemicals, fiberglass, and explosives.

For the carriage of this substance should be placed in bags or special containers (big bags). As the vehicle can act as railway carriages and cars. Shelf life under the right conditions storage – hygroscopic, do not allow moisture.

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