Ammonium Nitrate
Ammonium Nitrate - Related Videos
09:50
Electrochemically and Bioelectrochemically Induced Ammonium Recovery
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Cited by 31 •
2015
We demonstrate the extraction of ammonium from an ammonium-rich stream using an electrochemical and a bioelectrochemical system. The reactor setup, operation and data analysis are discussed.
08:05
Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O
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2020
A series of methods to determine the potential DNRA rate based on 14NH4+/15NH4+ analyses is provided in detail. NH4+ is converted into N2O via several steps and analyzed using quadrupole gas chromatography–mass spectrometry.
01:20
Electrophilic Aromatic Substitution: Nitration of Benzene
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2025
The nitration of benzene is an example of an electrophilic aromatic substitution reaction. It involves the formation of a very powerful electrophile, the nitronium ion, which is linear in shape. The reaction occurs through the interaction of two strong acids, sulfuric and nitric acid. Sulfuric acid is stronger and protonates the nitric acid on the hydroxyl group, followed by loss of water molecule, generating the nitronium ion. The nitronium ion acts as an electrophile that reacts with...
01:16
Antianginal Drugs: Nitrates and β-Blockers
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2024
In cardiovascular health, antianginal drugs combat angina pectoris — a condition marked by chest pain owing to diminished blood flow to the heart. Organic nitrates, such as nitroglycerin, play a pivotal role. Once metabolized, they liberate nitric oxide, a molecular marvel. Nitric oxide triggers guanylyl cyclase and augments cGMP production. This biochemical cascade orchestrates the relaxation of vascular smooth muscles, ushering in vasodilation and enhancing coronary blood flow. Administered...
01:25
Isolation of Ammonium-Oxidizing Iron Reducers from a Wetland Soil–Derived Enrichment Culture
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2025
Begin with a wetland soil-derived enrichment culture containing bacterial communities.The culture exhibits Feammox activity, ammonium oxidation coupled to ferric iron reduction, indicating the enrichment of a bacterium capable of this metabolic process.Serially dilute the culture using media.Streak the diluted samples onto test agar plates supplemented with ferric iron and ammonium.Use control plates that lack either ferric iron or ammonium, or contain ferric iron with organic carbon instead of...
FAQs
After ammonium nitrate reaches moist soil, it dissolves readily, making ammonium and nitrate available in the soil solution. Plants can absorb the nitrogen, while microorganisms transform ammonium through nitrification into additional nitrate. This sequence links fertilizer application with both plant nutrition and the formation of a more mobile nitrogen form that can move beyond the original application site.
Nitrate is highly mobile, so nitrogen remaining after plant uptake can leach through soil into groundwater or be carried by runoff to rivers and lakes. In aquatic systems, this added nutrient load can contribute to eutrophication, making nitrate transport a central concern in fertilizer-related pollution assessment and water-quality protection.
Microbial nitrification changes the chemical form of nitrogen supplied by ammonium nitrate: ammonium becomes additional nitrate. This transformation matters because the resulting nitrate is highly mobile and therefore more readily associated with leaching and runoff pathways. The overview also identifies nitrogen transformations as factors that can affect soil acidity and atmospheric emissions, extending their significance beyond plant nutrition.
An environmental assessment should follow ammonium nitrate nitrogen through soil, plants, groundwater, and surface waters. The key sequence is application, dissolution, plant uptake, microbial nitrification, and possible movement by leaching or runoff. Evaluating these linked pathways helps determine whether nitrogen supports plant growth or instead contributes to groundwater contamination, eutrophication, soil-acidity changes, or atmospheric emissions.
Ammonium nitrate provides a case study in how a nutrient input moves through an ecosystem and changes environmental conditions. Its nitrogen can enter biological uptake and microbial transformation, but excess amounts may reach water bodies or influence soil and atmospheric conditions. These connections make it useful for studying nutrient cycling, pollution, water-quality protection, and ecosystem impacts together.
Researchers can use the identified nitrogen pathways to connect fertilizer application with environmental concerns, including nitrogen available to plants, nitrate movement toward groundwater or rivers and lakes, eutrophication risk, soil-acidity effects, and atmospheric emissions. This pathway-based perspective supports management decisions aimed at preserving fertilizer value for crops while reducing excess nitrogen reaching surrounding environmental compartments.