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Test Items
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Industrial grade
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Top quality
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First grade
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Qualified product
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Total nitrogen ≥
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46.5
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46.3
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46.3
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Biuret ≤
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0.5
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0.9
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1.0
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Moisture (H2O) ≤
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0.3
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0.5
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0.7
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Iron (Fe) ≤
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0.0005
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0.0005
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0.0010
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Alkalinity (NH3) ≤
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0.01
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0.02
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0.03
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Sulfate (SO42-) ≤
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0.005
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0.010
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0.020
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Water insoluble matter ≤
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0.005
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0.010
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0.040
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Methylene diurea (HCHO) ≤
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D 0.85mm-2.80mm≥
D 1.18mm-3.35mm≥ D 2.00mm-4.75mm≥ D 4.00mm-8.00mm≥ |
90
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90
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90
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2.Appearance:White Granular.
3.Packing:It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. or In kraft bag with plastic inner bag.The net weight of each bag is 25kg.
4.Properties: soluble in water, ethanol and benzene, almost insoluble in ether and chloroform.
5.Usage:It is used for industry as a corrosion inhibitor in metal pickling and also for the preparation of palladium activating solution.
6.Storage and Transport:It should be stored in a dry and ventilate warehouse; kept away form water and moisture during transport; unloaded with care, so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.
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