Fertilizer identification is crucial for farmers to ensure they are using high-quality products that deliver the expected results. Here's a detailed guide on how to distinguish genuine fertilizers from fake ones, covering urea, compound fertilizer, ammonium bicarbonate, ammonium sulfate, and ammonium nitrate.
First, identifying urea: Genuine urea appears as white or yellowish-white needle-like, spindle-shaped, or round granular crystals. It has no odor and dissolves completely in water. If it doesn’t dissolve or emits an ammonia smell when mixed with lime water, it may be counterfeit. When burned on a hot iron or tile, real urea produces white smoke and a strong ammonia odor, quickly turning into water. If it melts or makes a hissing sound, it might contain impurities like ammonium sulfate or ammonium chloride. A hydrochloric acid smell suggests the presence of ammonium chloride, while a slight flame indicates possible ammonium nitrate content.
Second, identifying compound fertilizer: One simple test is to drop a small amount of the fertilizer from a height of 1.5 meters. Genuine fertilizer will fall smoothly, while fake ones may crack or make a distinct sound. Another method is to place a small sample on a damp plate. If it absorbs moisture quickly, it could be fake. Genuine compound fertilizer tends to have a smaller volume compared to fake versions, which often look overly large or packed. Dissolving the product in water is another test—genuine fertilizer should dissolve completely, while inferior ones may leave residue.
Third, identifying ammonium bicarbonate: This fertilizer is commonly used due to its affordability. To check its authenticity, heat a small sample on a piece of metal or tile. If it doesn't melt or produce liquid, it's likely genuine. However, if it forms a molten substance, it may be mixed with other fertilizers like calcium ammonium nitrate. True ammonium bicarbonate has a pungent ammonia smell and dissolves in water with a strong ammonia taste.
Fourth, identifying ammonium sulfate: Genuine ammonium sulfate appears as white or light gray crystals, sometimes with a blue or light red tint. It has no strong odor and dissolves completely in water. When heated on a metal surface, it should not melt or burn but emit an ammonia smell. Black marks on the metal indicate authentic ammonium sulfate; otherwise, it may be a counterfeit product.
Fifth, identifying ammonium nitrate: The real product is typically white or yellowish-white in color, odorless, and fully soluble in water. It is usually packaged in thick kraft paper. When burned on a metal surface, it melts quickly, produces a red flame, and releases an ammonia smell. To further confirm, dissolve a small amount in water and add four drops of diphenylamine solution. A blue color change indicates authenticity, while no color change suggests a fake product.
By following these methods, farmers can better protect themselves from substandard fertilizers and ensure their crops receive the proper nutrients. Always purchase from reputable suppliers and check packaging and labels carefully.
Defoamer (defoaming Agent)
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Feature
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l Can inhibit the foam forming
l Excellent defoaming property quickly
l Stable and no separated layer in water based system
l Good compatibility with water based resin and no floating oil phenomenon
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Application and dosage:
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l Water based wood paint/coating
l Water based industrial paint/coating
l Water based automotive trim adhesive
l Emulsion paint/coating
l Water based coating etc.
Remark: Dilute the WC-DF505 by 3~5 times with water and add it into water based system.
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Chemical composition:
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l Modified polydimethylsiloxane polymer
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Technical data:
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l Appearance: Yellowish liquid
l pH (25℃): 6~7
l Active ingredient: ~30%
l Viscosity (25℃): 500-1000 Cp
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Package, Storage and Transportation
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l Available in 200 kg/ barrel or 25 kg/ barrel
l Storage period: ~12 months in closed containers, shady and dry place
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Defoamer Agent,Fatty Alcohol Defoamer,Polyether Defoamer,Organosilicone Defoamer
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com