1) Basic information for the High Quality Urea Granular
Product name: Uera
Alias: aquacare; Aquacare HP; aquacarehp; Aquadrate; Aqua-drate; Basodexan;; Carbamide; Carbonyl diamide; carbonyl diamine; diaminomethanal;
CAS No.: 57-13-6
EINECS: 200-315-5
Molecular Formula (MF): NH2CONH2
Molecular Weight (MW): 60
2） Physical and chemical properties
Appearance: crystal white powder
Specific density: 1.335 g/ml;
Decomposition Temp.: 196.6 Celsius degree
Product specification (total nitrogen): 46.4%min.;
Packing: 25kg or 50kg bag; or as requested. eg. Urea 46 Granular And Prilled 50Kg Bag
Stability
Highly flammable. Incompatible with strong oxidizing agents, strong acids, strong bases, heavy metal salts.
Decomposition
When heated to decomposition it emits toxic fumes of nitrogen oxides.
3) Notice on Safety information:
Danger Class: 4.1
Risk Statements: R36/37/38
Safety Statements: S24/S25
UN NO. Under IMDG: none
Packing Group: none
Toxicity: LD50 orally in Rabbit: 8471 mg/kg LD50 dermal Rat 8200 mg/kg
Safety
A very dangerous high explosive. May explode violently in ice water or on exposure to light. When heated to decomposition it emits toxic fumes of CO and NOx.
4) Application:
Agriculture uses more than 90% of world industrial production of urea is destined for use as a nitrogen-release fertilizer. Urea has the highest nitrogen content of all solid nitrogenous fertilizers in common use. Therefore, it has the lowest transportation costs per unit of nitrogen nutrient .In the soil, it hydrolyses back to ammonia and Carbon dioxide. The ammonia is oxidized by bacteria in the soil to nitrate, which can be absorbed by the plants. Urea is also used in many multi-component solid fertilizer formulations. Urea is highly soluble in water, therefore, very suitable for use in fertilizer solutions (in combination with ammonium nitrate: UAN), e.g., in ‘foliar feed’ fertilizers. For fertilizer use, granules are preferred because of their narrower particle size distribution, an advantage for mechanical application. The most common impurity of synthetic urea, biuret, must be present at less than 2 percent of the time, as it impairs plant growth
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