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

Factors Affecting Solubility04:01

Factors Affecting Solubility

37.9K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
37.9K
Solubility Equilibria: Overview01:09

Solubility Equilibria: Overview

1.8K
When a substance such as sodium chloride is added to water, it dissolves, forming an aqueous solution. The extent of dissolution is called solubility. The process of dissolution can exist in equilibrium, just like other chemical processes. Solubility equilibria are also called precipitation equilibria because the process of solubility can be reversible. The reverse of the solubility process is called precipitation.
Solubility is important in biological and environmental processes. A notable...
1.8K
Precipitation of Ions03:11

Precipitation of Ions

30.7K
Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
30.7K
Precipitation Reactions03:10

Precipitation Reactions

67.5K
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...
67.5K
Solubility Equilibria03:07

Solubility Equilibria

59.9K
Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many natural and technological processes, ranging from tooth decay to water purification. An understanding of the factors affecting compound solubility is, therefore, essential to the effective management of these processes. This section applies previously introduced equilibrium concepts and tools to systems involving dissolution and precipitation.
The...
59.9K
Washing, Drying, and Ignition of Precipitates00:52

Washing, Drying, and Ignition of Precipitates

7.0K
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...
7.0K

You might also read

Related Articles

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

Sort by
Same author

Impact of transradial amputation and brachial plexus injury on vibrotactile sensation capacity of the upper extremity.

Journal of neuroengineering and rehabilitation·2026
Same author

[Cyberful-Virtual reality in arm and hand rehabilitation].

Unfallchirurgie (Heidelberg, Germany)·2025
Same author

The reliability of basketball shooting tests with binary outcomes.

Journal of sports sciences·2024
Same author

Iron burden and endocrine complications in transfusion-dependent thalassemia patients In Sarawak, Malaysia: a retrospective study.

The Medical journal of Malaysia·2024
Same author

Abdominal aortic aneurysm volume and relative intraluminal thrombus volume might be auxiliary predictors of rupture-an observational cross-sectional study.

Frontiers in surgery·2023
Same author

Development of ELIP to Assess Physical Literacy for Emerging Adults: A Methodological and Epistemological Challenge.

Research quarterly for exercise and sport·2023

Related Experiment Video

Updated: Mar 16, 2026

Calcium Carbonate Formation in the Presence of Biopolymeric Additives
09:31

Calcium Carbonate Formation in the Presence of Biopolymeric Additives

Published on: May 14, 2019

17.5K

Calcium Fluoride Precipitation and Deposition From 12 mmol/L Fluoride Solutions With Different Calcium Addition

M Markovic1, S Takagi1, L C Chow1

  • 1American Dental Association Foundation, Paffenbarger Research Center, National Institute of Standards and Technology, Gaithersburg, MD 20899.

Journal of Research of the National Institute of Standards and Technology
|August 10, 2016
PubMed
Summary
This summary is machine-generated.

Continuous calcium (Ca) addition to fluoride solutions enhances calcium fluoride (CaF2) deposition. Optimal Ca addition rates, not the highest, maximize CaF2 deposition, suggesting controlled Ca release can improve fluoride treatments.

Keywords:
calcium addition ratecalcium fluoridefluoride depositionfluoride solutionprecipitation

More Related Videos

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion
06:27

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion

Published on: September 12, 2019

10.2K
A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
11:30

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro

Published on: June 2, 2022

2.6K

Related Experiment Videos

Last Updated: Mar 16, 2026

Calcium Carbonate Formation in the Presence of Biopolymeric Additives
09:31

Calcium Carbonate Formation in the Presence of Biopolymeric Additives

Published on: May 14, 2019

17.5K
Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion
06:27

Sandy Soil Improvement through Microbially Induced Calcite Precipitation MICP by Immersion

Published on: September 12, 2019

10.2K
A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
11:30

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro

Published on: June 2, 2022

2.6K

Area of Science:

  • Materials Science
  • Biomaterials Science
  • Dental Materials

Background:

  • Fluoride (F) treatments are crucial for preventing dental caries.
  • Calcium fluoride (CaF2) precipitation is a key mechanism in fluoride's protective effect.
  • Optimizing CaF2 deposition is essential for enhancing fluoride efficacy.

Purpose of the Study:

  • To investigate the impact of varying calcium (Ca) addition rates on calcium fluoride (CaF2) precipitation and deposition.
  • To determine the relationship between Ca addition rates and the amount of CaF2 deposited on a model substrate.
  • To explore strategies for improving fluoride retention and efficacy in dental applications.

Main Methods:

  • Continuous addition of calcium chloride (CaCl2) solution to sodium fluoride (NaF) solutions at different rates (5-20 mmol L(-1) min(-1)).
  • Real-time monitoring of fluoride and calcium ion concentrations using electrodes.
  • Measurement of turbidity using spectrophotometry to indicate CaF2 precipitation.
  • Quantification of 1-minute CaF2 deposition on cellulose filter paper (0.2 µm pores).

Main Results:

  • CaF2 precipitation was confirmed by decreasing F(-) concentrations and increasing turbidity.
  • 1-minute CaF2 depositions did not correlate positively with Ca addition rates.
  • The highest Ca addition rate (20 mmol L(-1) min(-1)) resulted in the lowest deposition.
  • Optimal CaF2 deposition occurred at Ca addition rates between 7.5 and 12.5 mmol L(-1) min(-1).
  • Continuous Ca addition significantly enhanced F deposition compared to controls.

Conclusions:

  • Controlled Ca addition, rather than high rates, is critical for maximizing CaF2 deposition.
  • The rate of CaF2 precipitation and subsequent deposition can be modulated by controlling Ca supply.
  • Incorporating continuously Ca-releasing agents into fluoride formulations may enhance their clinical efficacy.