Strontium Chloride Formula

Strontium chloride Formula

A typical salt that contains both strontium and chlorine is called the Strontium Chloride Formula (SrCl2). Collodion chloride printing emulsions are created using the Strontium Chloride Formula, a typical halide. Based on the widespread erroneous usage of radiolabeled strontium and auto-radiography, the Strontium Chloride Formula was the first component in toothpaste considered to occlude tubules. Compounds made with strontium are less harmful.

What is Strontium Chloride?

The inorganic salt Strontium Chloride Formula, commonly referred to as strontium dichloride, has the chemical formula SrCl2 and is commonly utilised in fireworks and dental products. Students can infer from the formula that it is composed of two chloride anions and a strontium cation. Students can learn more about the chemical composition of the Strontium Chloride Formula, its characteristics, and its applications with the aid of educational resources available on the Extramarks website.

Structure of Strontium Chloride

Strontium Chloride Formula is a crystalline solid with a structure resembling fluorite. The SrCl2 molecule is depicted as a non-linear structure with a Cl-Sr-Cl angle of around 130° in the vapour phase. In this case, the linear structure predicted by the VSEPR theory is an outlier. The d orbitals in the shell below the valence shell have likewise been blamed solely, according to the ab initio calculations. Another theory states that the strontium atom’s electron core polarisation results in a distortion of the core electron density, which directly affects the Sr-Cl bonds.

Preparation of Strontium Chloride

Strontium carbonate or aqueous strontium hydroxide are both processed with hydrochloric acid to produce the Strontium Chloride Formula. The resulting chemical reaction is as follows:

HCl + 2 Sr(OH)2 = SrCl + 2 H2O

The hexahydrate, SrCl26H2O, is created during crystallisation from the cold aqueous solution. This salt begins to dehydrate gradually if the temperature rises beyond 61 °C (otherwise, 142 °F). At 320 °C (or 608 °F), full dehydration occurs.

Strontium Chloride Properties

A few physical and chemical properties are mentioned below.

Physical Properties of Strontium Chloride – SrCl2

  • Odour- Odourless
  • Appearance- White crystalline solid
  • Vapour Pressure- 25° C. is 8.37 mm
  • Solubility- Soluble in water slightly soluble in alcohol

Chemical Properties of Strontium Chloride –  SrCl2

Chlorine gas and strontium fluoride are created when the Strontium Chloride Formula molecule combines with fluorine gas.

SrCl2 + 2HF → SrF2 + Cl2 

In addition to hydrogen chloride and strontium hydrogen sulphate, the Strontium Chloride Formula interacts with sulfuric acid to produce hydrogen chloride and strontium hydrogen sulphate.

Sr(HSO4)2 = Sr(Cl2) + 2H2SO4 + 2HCl

Strontium Chloride Uses

  • It reduces tooth sensitivity by creating a barrier over tiny tubules in the dentin that contain nerve endings that have become exposed as a result of gum recession.
  • In order to cure bone cancer, the radioactive isotope strontium-89 is employed.
  • Strontium chloride, which is necessary for modest proportions for the formation of plankton exoskeletons, must be present in seawater aquariums.
  • It is a component of the colour of the red fireworks. It produces a brighter shade of crimson than the alternatives.

Side Effects of Strontium Chloride

A silvery metal called strontium is a naturally occurring, non-radioactive element. The bones are where the majority of the strontium found in the human body is contained, up to 99%.

The metal strontium can be employed in a variety of therapeutic applications. Additionally, researchers are studying this strontium ranelate metal to determine if it can be ingested orally in order to cure arthritis and thinning bones (also known as osteoporosis).

Sample Questions

A number of sample questions are provided by Extramarks for students’ understanding. 

Chemistry Related Formulas
Cholesterol Formula Manganeseii Sulfate Formula
Copper Sulfate Formula Mercury Ii Sulfate Formula
Helium Gas Formula Net Ionic Formula
Partition Coefficient Formula Percarbonic Acid Formula
Potassium Acetate Formula Selenous Acid Formula
Potassium Nitrite Formula

FAQs (Frequently Asked Questions)

1. How is Strontium chloride Formula applied in dentistry?

By creating a barrier over tiny tubules in the dentin that contain nerve endings exposed due to gum recession, SrCl2 can also help with tooth sensitivity. These toothpaste tubes are known as “Strontium chloride Formula” tubes in the United States, where they are marketed under the names Sensodyne and Elecol. However, the majority of them now contain saltpetre (KNO3), which acts as an analgesic rather than a barrier.

2. What will happen when sulfuric acid and Strontium chloride Formula interact?

Strontium chloride Formula reacts with sulfuric acid to create hydrogen chloride and strontium hydrogen sulphate in addition to the two other products.


Sr(HSO4)2 = Sr(Cl2) + 2H2SO+ 2HCl