PRODUCTOS
Urea
HS CODE:3102100090
CAS NO.: 57-13-6
EINECS: 200-315-5
Molecular formula：(NH4)2HPO4
Feature：Urea is an odorless, round granular crystal
Application：Mainly used as fertilizer, but also as industrial raw materials in the organic synthesis industry, and can be used for industrial production of medicine, dyes, textiles, explosives, petroleum refining, printing and dyeing.
Package： Packed in polypropylene woven bag lined with polyethylene film. Net weight of each package: 25 kg, 50 kg, 1000 kg.
Storage and Transportation：
1. If urea is improperly stored, it is easy to absorb moisture and caking. Before use, be sure to keep the urea packaging bag intact and intact. During transportation, it should be handled gently and protected from rain, stored in a dry, well-ventilated, temperature below 20 degrees local.
2. If it is a large amount of storage, use a wooden square to cushion about 20 cm below, and leave a gap of 50 cm or more between the upper part and the roof to facilitate ventilation and dampness, and leave an aisle between the stacks. To facilitate inspection and ventilation. At the same time, the urea code should not be too high, and the cargo under the pressure will cause agglomeration for too long.
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ITEMS |
Industrial |
Agricultural use |
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high-class |
First Grade |
qualified |
high-class |
First Grade |
qualified part |
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Total Nitrogen（N）%≥ |
46.5 |
46.3 |
46.3 |
46.4 |
46.2 |
46 |
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Biuret %≦ |
0.5 |
0.9 |
1.0 |
0.9 |
1.0 |
1.5 |
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Moisture |
0.3 |
0.5 |
0.7 |
0.4 |
0.5 |
1.0 |
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Fe % ≦ |
0.0005 |
0.0005 |
0.0010 |
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Alkalinity（NH3) %≦ （NH3 ) |
0.01 |
0.02 |
0.03 |
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Sulfate （SO2-4）%≦（SO2-4） |
0.005 |
0.010 |
0.020 |
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Water Insoluble % ≦ |
0.005 |
0.010 |
0.040 |
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Methylene diurea（HCHO） %≦ (based on HCHO) |
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0.6 |
0.6 |
0.6 |
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Granular size |
d 0.85mm-2.80mm ≥ d 1.18mm-3.35mm ≥ d 2.00mm-4.75mm ≥ d 4.00mm-8.00mm ≥ |
90 |
90 |
90 |
93 |
90 |
90 |
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