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Physic and Chemical Characteristics
Chemical names: carbomite,
commonly referred to as urea
English names: urea;
carbomite
Formula: CO (NH2)
2
Appearance: white
spherical particle (particle diameter: 0.85mm-2.80mm,
2.00mm-4.75mm, 1.18mm-3.38mm)
Solubility: easy to
dissolve in water and ammonia, the solubility increasing with
temperature increment, reacting with hydrocarbons, alcohols,
acids and aldehydes.
Conversion mode: it can
not be hydrolyzed in any environment when the temperature is
lower than 60¡æ. Its hydrolyzation speed increases rapidly when
the temperature is higher than 110¡æ, and it converts into
ammonium carbamate-salvolatile-ammonia and carbon dioxide. When
heated to its melting point of 120¡æ-130¡æ, the solid carbamide
begins to sublime and generates a condensation side product.
Product Use
It is the fertilizer with
the highest nitrogen content among solid nitrogenous
fertilizers. With stable physic and chemical characteristics, it
has no influence on the soil property and can be used in any
soils and for any crops. It can also be used as ex-root
nutrition. Meanwhile, carbamide is an important raw material in
resin, plastic, explosive, medicine and food industries.
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