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

Ionic Compounds: Formulas and Nomenclature03:34

Ionic Compounds: Formulas and Nomenclature

65.8K
An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
65.8K
Hydration of Cement01:24

Hydration of Cement

169
Hydration of cement is a chemical reaction between cement particles and water. This process occurs primarily through two mechanisms: through-solution and topochemical. In the through-solution process, anhydrous compounds dissolve into their constituents, hydrates form in the solution, and then precipitate from the supersaturated solution. The topochemical process involves solid-state reactions at the cement particle surface. The through-solution process dominates the topochemical process at the...
169
Strength and Heat of Hydration01:29

Strength and Heat of Hydration

189
The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
189
Formation of Halohydrin from Alkenes02:41

Formation of Halohydrin from Alkenes

12.6K
An alkene, such as propene, reacts with bromine in the presence of water to yield a halohydrin. Halohydrins contain a halogen and a hydroxyl group attached to adjacent carbons. When the halogen is bromine, it is called a bromohydrin, while a chlorohydrin has chlorine as the halogen.
12.6K
Precipitation of Ions03:11

Precipitation of Ions

27.3K
Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
27.3K
Transition Zone01:28

Transition Zone

64
The transition zone in concrete is a critical area where aggregate meets cement paste, marked by a distinct porosity and weakness compared to the surrounding material. The adhesion around the aggregates is primarily due to Van Der Waals forces. The voids within this zone influence its robustness; initially, it is less durable than the surrounding bulk mortar due to larger voids. Initially, when concrete is compacted, a higher water-cement ratio near the aggregates leads to the formation of...
64

You might also read

Related Articles

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

Sort by
Same author

<i>H</i>-linear magnetoresistance in NbSe<sub>2</sub> due to impeded cyclotron motion.

Science advances·2026
Same author

Probing Attractive OH-Ï€ Interactions and Repulsive n-Ï€ Interactions in a Phenol Molecular Balance.

Chemistry, an Asian journal·2026
Same author

BEST-CSP Benchmark Study of Polymorphs I and II of Sulfamerazine and the Perils of Polytype Polymorphs.

Crystal growth & design·2026
Same author

Thermoplastic Network Formation as a Method for Stabilizing Salt Hydrate Particles.

Molecules (Basel, Switzerland)·2025
Same author

Materials for thermochemical energy storage and conversion: attributes for low-temperature applications.

Materials horizons·2025
Same author

(2-Amino-ethan-1-aminium-κ<i>N</i> <sup>2</sup>)tri-chlorido-zinc(II).

IUCrData·2025

Related Experiment Video

Updated: May 10, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

68.9K

Understanding Hydration Transitions of CaBr2.

Michaela C Eberbach1,2, Aleksandr I Shkatulov1,3, Paul Tinnemans4

  • 1Eindhoven University of Technology, Den Dolech 2, 5600 MB Eindhoven, The Netherlands.

Crystal Growth & Design
|April 21, 2025
PubMed
Summary
This summary is machine-generated.

This study clarifies the hydration pathways of calcium bromide (CaBr2) for heat storage applications. Researchers found a stable monohydrate phase exists between the anhydrate and dihydrate, both in bulk and confined forms.

More Related Videos

Sub-nanometer Resolution Imaging with Amplitude-modulation Atomic Force Microscopy in Liquid
10:25

Sub-nanometer Resolution Imaging with Amplitude-modulation Atomic Force Microscopy in Liquid

Published on: December 20, 2016

16.6K
High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

6.3K

Related Experiment Videos

Last Updated: May 10, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

68.9K
Sub-nanometer Resolution Imaging with Amplitude-modulation Atomic Force Microscopy in Liquid
10:25

Sub-nanometer Resolution Imaging with Amplitude-modulation Atomic Force Microscopy in Liquid

Published on: December 20, 2016

16.6K
High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
06:24

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

Published on: October 31, 2019

6.3K

Area of Science:

  • Materials Science
  • Chemistry
  • Energy Storage

Background:

  • Salt hydrates are crucial for heat storage batteries due to their high energy capacity.
  • Calcium bromide (CaBr2) has complex and debated hydration pathways, hindering its application.
  • Understanding CaBr2's hydration is key for developing advanced energy storage solutions.

Purpose of the Study:

  • To investigate the hydration and dehydration pathways of CaBr2 in bulk and confined states.
  • To identify intermediate hydrate phases and their transition conditions.
  • To clarify the structural differences between CaBr2 and CaCl2 hydrates.

Main Methods:

  • Experimental measurement of kinetic phase transition onsets and equilibrium lines for bulk CaBr2.
  • Powder X-ray diffractometry to verify hydrate structures during transitions.
  • Single-crystal analysis to determine the precise crystal structures of CaBr2 hydrates.
  • Characterization of CaBr2 within mesoporous silica gels to study confined behavior.

Main Results:

  • A stable monohydrate phase was identified as the sole intermediate between CaBr2 anhydrate and dihydrate.
  • The CaBr2 dihydrate shares structural similarity with CaCl2 dihydrate, differing in unit cell size.
  • The CaBr2 monohydrate exhibits a distinct crystal structure compared to CaCl2 monohydrate.
  • CaBr2 demonstrated consistent hydration steps in confined mesoporous silica gels as observed in bulk form.

Conclusions:

  • The study resolves the ambiguity surrounding CaBr2's intermediate hydrate phases, confirming a monohydrate.
  • CaBr2's predictable hydration behavior in both bulk and confined forms supports its potential for heat storage applications.
  • Structural insights into CaBr2 hydrates provide a basis for material design in thermal energy storage.