Strontium chloride, also known together strontium dichloride, is an inorganic salt known to it is in a raw product to acquire other strontium compounds. That is additionally use to produce fireworks and dental care products.

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Formula and structure: The strontium chloride chemical formula is SrCl2 and it has two forms: the anhydrous and also the hydrated form. The anhydrous molar mass is 158.53 g mol-1, while 266.62 g mol-1 is the molar fixed of the hexahydrate form. In general, the molecule is developed by a strontium cation Sr+2 and two chloride anion Cl-1 which type an structure octahedral with 6 anions surrounding a cation. Its chemical structure deserve to be created as below, in the usual representations provided for essential molecules.

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Occurrence: Strontium chloride is not develop in nature, that is jus acquired from chemistry methods.

Preparation: Strontium chloride is created by the same chemical process that is provided to develop strontium fluoride SrF2. Strontium chloride is prepared by the reaction between hydrochloric acid and strontium hydroxide or strontium bicarbonate or carbonate:

Sr(OH)2 + 2 HCl → SrCl2 + 2 H2O

SrCO3 + 2 HCl → SrCl2 + H2O + CO2

Physical properties: Strontium chloride is a colorless to white crystalline solid or powder. Its density is 3.052 g mL-1 (anhydrous) and also 2.672 g mL-1 (hexahydrate). The melting points are 874 ºC (anhydrous) and 61 ºC (hexahydrate), when the boiling allude for the anhydrous salt is 1250 ºC. Strontium chloride is soluble in water, poorly dissolve in methanol, ethanol and acetone and insoluble in ammonia.

Chemical properties: Strontium chloride has actually the same chemical properties that its homologous salt strontium fluoride, for this reason it has a an extremely polarized bound Sr-Cl because of the electronegativity that chloride atom. However, the polarization is not lower than in the situation of a bound through the fluoride atom yet it is still enough to encourage a readjust of the structure once the strontium chloride is in the gaseous state and also bring a high electroconductivity.

Uses: Strontium chloride has been used for many years as a source of strontium or prefer a raw product to produce other strontium compounds; because that example, the strontium chromate i beg your pardon is produced from salt chromate and strontium chloride:

SrCl2 + Na2CrO4 → SrCrO4 + 2 NaCl

It has been likewise use come manufacture firework due to the cation strontium create a red shade when in call with a flame. A large quantity if strontium chloride is additionally used in the production of toothpaste because that tooth sensitivity.

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Health effects / security hazards: Strontium chloride can irritate skin, eyes and mucous. The is not poisonous favor strontium fluoride. That is no flammable and it does not react with other chemical species.