Jove
Visualize
Contact Us

Related Concept Videos

Qualitative Analysis03:46

Qualitative Analysis

For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
Washing, Drying, and Ignition of Precipitates00:52

Washing, Drying, and Ignition of Precipitates

After filtration, the precipitate is washed to remove coprecipitated impurities and any remaining mother liquor. Colloidal precipitates, such as silver chloride, are washed with an electrolyte (such as dilute nitric acid) to prevent the peptization of the precipitate. In the case of slightly soluble precipitates, the wash solution contains a common ion to reduce solubility. Lead sulfate, which is slightly soluble in water, is washed with dilute sulfuric acid. Similarly, wash solutions may be...
Gravimetry: Inorganic And Organic Precipitating Agents00:49

Gravimetry: Inorganic And Organic Precipitating Agents

In gravimetry, the precipitant is chosen carefully to obtain a pure solid that can be easily filtered. Common inorganic precipitants can be used to determine several cations and anions. In some cases, the formation of the same precipitate can be used to determine the cation and the anion. For example, the reaction of barium and chromate ions to give barium chromate is used to determine both barium and chromate. However, precipitates such as hydroxides, oxalates, and metal ammonium phosphates...
Precipitation of Ions03:11

Precipitation of Ions

Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:

You might also read

Related Articles

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

Sort by
Same author

1-Bromo-methyl-1,4-diazo-niabicyclo-[2.2.2]octane tetra-chloridozincate.

Acta crystallographica. Section E, Structure reports online·2011
Same author

Dimethyl-ammonium tetra-chloridoferrate(III) 18-crown-6 clathrate.

Acta crystallographica. Section E, Structure reports online·2011
Same author

Benzyl-ammonium tetra-fluoro-borate 18-crown-6 clathrate.

Acta crystallographica. Section E, Structure reports online·2011
Same author

1-Cyano-methyl-1,4-diazo-niabicyclo-[2.2.2]octane tetra-chloridomanganate(II).

Acta crystallographica. Section E, Structure reports online·2011
Same author

4-Bromo-anilinium perchlorate 18-crown-6 clathrate.

Acta crystallographica. Section E, Structure reports online·2011
Same author

4-Methoxy-anilinium chloride.

Acta crystallographica. Section E, Structure reports online·2011
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 Experiment Video

Updated: Jun 1, 2026

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation
04:14

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

Melaminium perchlorate monohydrate.

Min Min Zhao1, Ping Ping Shi

  • 1Ordered Matter Science Research Center, College of Chemistry and Chemical, Engineering, Southeast University, Nanjing 211189, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online
|May 18, 2011
PubMed
Summary
This summary is machine-generated.

This study details the crystal structure of a hydrated salt, 2,4,6-triamino-1,3,5-triazin-1-ium perchlorate monohydrate. It reveals extensive hydrogen bonding and pi-pi interactions that dictate the compound's molecular arrangement.

More Related Videos

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
08:30

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

Related Experiment Videos

Last Updated: Jun 1, 2026

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation
04:14

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
08:30

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

Area of Science:

  • Crystallography
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Understanding the crystal structure of hydrated salts is crucial for predicting their physical and chemical properties.
  • Melaminium salts, like the one studied, are of interest due to their potential applications in various fields.

Purpose of the Study:

  • To elucidate the detailed crystal structure of 2,4,6-triamino-1,3,5-triazin-1-ium perchlorate monohydrate.
  • To identify and characterize the intermolecular interactions, particularly hydrogen bonding and pi-pi interactions, within the crystal lattice.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the three-dimensional structure of the hydrated salt.
  • Analysis of hydrogen bond geometries and distances was performed to understand the bonding network.

Main Results:

  • The crystal structure reveals a network of hydrogen bonds involving O-H, N-H, and Cl atoms, with all hydrogen atoms of the melaminium cation participating.
  • Melaminium residues form chains via N-H⋯N hydrogen bonds, which are further interconnected into ribbons through additional hydrogen bonds and π-π interactions (centroid-centroid distance of 3.8097(7) Å).

Conclusions:

  • The intricate network of hydrogen bonds and π-π interactions plays a significant role in stabilizing the crystal structure of 2,4,6-triamino-1,3,5-triazin-1-ium perchlorate monohydrate.
  • The comprehensive structural analysis provides fundamental insights into the supramolecular assembly of this hydrated salt.