Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Equilibrium Constant03:10

The Equilibrium Constant

Consider the oxidation of sulfur dioxide:
Weak Acid Solutions04:02

Weak Acid Solutions

Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
Acids, Bases and Neutralization Reactions03:26

Acids, Bases and Neutralization Reactions

An acid-base reaction is one in which a hydrogen ion, H+, is transferred from one chemical species to another. Such reactions are of central importance to numerous natural and technological processes, ranging from the chemical transformations within cells or lakes and oceans to the industrial-scale production of fertilizers, pharmaceuticals, and other substances essential to the society.
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism01:37

1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism

Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
Precipitation Reactions03:10

Precipitation Reactions

In a precipitation reaction, aqueous solutions of soluble salts react to give an insoluble ionic compound – the precipitate. The reaction occurs when oppositely charged ions in solution overcome their attraction for water and bind to each other, forming a precipitate that separates out from the solution. Since such reactions involve the exchange of ions between ionic compounds in aqueous solution, they are also referred to as double displacement, double replacement, exchange reactions, or...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Spatially distributed complex organic matter detected in an ancient river valley in Jezero crater, Mars.

Science advances·2026
Same author

Salivary Proteome-Microbiome Profiling in Burning Mouth Syndrome Might Highlight Mucin-Related Host-Microbe Features.

Journal of oral rehabilitation·2026
Same author

Risk of Oral Complications Among IL-17 Inhibitor Users: A Systematic Review and Meta-Analysis.

Oral diseases·2026
Same author

Acupuncture for pediatric patients with cardiogenic stroke sequelae: A CARE-compliant case report.

Medicine·2025
Same author

DNA methylation and demethylation in adipocyte biology: roles of DNMT and TET proteins in metabolic disorders.

Frontiers in endocrinology·2025
Same author

Improving spectroscopic detection limits with multi-pixel signal-to-noise ratio calculations: Application to the SHERLOC instrument aboard the perseverance rover.

Analytica chimica acta·2025

Related Experiment Video

Updated: Jun 3, 2026

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
07:03

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors

Published on: November 15, 2016

Solid state and solution nitrate photochemistry: photochemical evolution of the solid state lattice.

Sanford A Asher1, David D Tuschel, Todd A Vargson

  • 1Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States. asher@pitt.edu

The Journal of Physical Chemistry. A
|April 6, 2011
PubMed
Summary

Deep UV photochemistry of sodium nitrate (NaNO(3)) was studied. In solution, NaNO(3) converts to sodium nitrite (NaNO(2)) with a quantum yield of 0.04. Solid NaNO(3) also forms NaNO(2) but exhibits complex, flux-dependent behavior.

More Related Videos

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)

Published on: December 29, 2016

Related Experiment Videos

Last Updated: Jun 3, 2026

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
07:03

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors

Published on: November 15, 2016

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)

Published on: December 29, 2016

Area of Science:

  • Photochemistry
  • Solid-state chemistry
  • Spectroscopy

Background:

  • Sodium nitrate (NaNO(3)) exhibits a strong π → π* transition in the deep UV region.
  • Understanding the photochemical behavior of nitrates is crucial for various applications.

Purpose of the Study:

  • To investigate the deep UV (229 nm) photochemistry of NaNO(3) in both aqueous solution and solid states.
  • To determine the photochemical quantum yield and reaction mechanisms.

Main Methods:

  • UV resonance Raman spectroscopy was employed to monitor the formation of nitrite (NO(2)⁻) and assess band intensities.
  • Scanning Electron Microscopy (SEM) was used to examine surface morphology changes in solid samples.

Main Results:

  • In aqueous solution, NaNO(3) undergoes photolysis to NO(2)⁻ and O· with a quantum yield of 0.04 at pH 6.5.
  • Solid NaNO(3) also forms NO(2)⁻ upon UV excitation, but with a significantly lower quantum yield (∼10⁻⁸).
  • Solid-state photochemistry is highly dependent on UV flux and dose, showing lattice stress, surface eruptions, and cratering at higher conditions.

Conclusions:

  • Deep UV excitation drives the conversion of nitrate to nitrite in both solution and solid NaNO(3).
  • Solid-state photochemistry is complex, involving pressure buildup, eruption, and surface modification.
  • The observed phenomena in solid NaNO(3) suggest a competition between pressure buildup and effusion, leading to stress relief mechanisms.