Ammonium Nitrate Emulsions

Ammonium nitrate emulsions are water-in-oil mixtures in which concentrated ammonium nitrate solution forms dispersed droplets within a continuous fuel phase, creating an energy-dense chemical system. Their behavior depends on the oxidizer–fuel balance, emulsion stability, and sensitization through microscopic gas voids, which help sustain rapid decomposition and, under suitable conditions, detonation. In chemistry and industrial engineering, these emulsions are studied to relate composition, droplet structure, density, and stability to performance and handling characteristics. Their principal application is as commercial blasting agents for mining and construction, making formulation control, regulatory oversight, and safe storage essential.

Ammonium Nitrate Emulsions - Related Videos

Research

JoVE Journal - Chemistry

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.

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.

Preparing an Antigen-Adjuvant Emulsion to Induce Autoimmune Encephalomyelitis

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2025

This video demonstrates an efficient homogenization technique to generate an antigen-adjuvant emulsion to induce experimental autoimmune encephalomyelitis (EAE) in a murine model. The emulsion contains an autoantigen — myelin oligodendrocyte glycoprotein (MOG) — in the water phase, surrounded by a continuous oil phase comprising an inactivated pathogenic bacteria. The emulsion ensures a sustained release of antigens for a prolonged immune response.

Minimum Burning Pressures of Water-based Emulsion Explosives

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2017

We present an apparatus based on hot-wire ignition in a pressurized enclosure and an associated methodology to measure the minimum pressure required to induce sustained combustion in water-based emulsion explosives. This method improves product characterization to allow one to use them more safely during pumping and mixing operations.

Education

JoVE Core - Organic Chemistry

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...

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