Editing Strontium chloride (section)

== Uses ==
Strontium chloride is a [[Precursor (chemistry)|precursor]] to other compounds of strontium, such as yellow [[strontium chromate]], [[strontium carbonate]], and [[strontium sulfate]]. Exposure of aqueous solutions of strontium chloride to the sodium salt of the desired [[anion]] often leads to formation of the solid precipitate:<ref name=hydrometallurgy>{{cite journal |journal= Hydrometallurgy |volume= 84 |issue= 3–4 |year= 2006 |pages= 239–246 |title= Dissolution kinetics of celestite (SrSO<sub>4</sub>) in HCl solution with BaCl<sub>2</sub> |first1= Salih |last1= Aydoğan |first2= Murat |last2= Erdemoğlu |first3= Ali |last3= Aras |first4= Gökhan |last4= Uçar |first5= Alper |last5= Özkan |doi= 10.1016/j.hydromet.2006.06.001 |bibcode= 2006HydMe..84..239A }}</ref><ref name="Ullmann" />

:{{chem2|SrCl2 + Na2CrO4 -> SrCrO4 + 2 NaCl}}
:{{chem2|SrCl2 + Na2CO3 -> SrCO3 + 2 NaCl}}
:{{chem2|SrCl2 + Na2SO4 -> SrSO4 + 2 NaCl}}

Strontium chloride is often used as a red colouring agent in [[pyrotechnics]].{{Citation needed|date=January 2025}} It imparts a much more intense red colour to the flames than most alternatives. It is employed in small quantities in [[glass]]-making and [[metallurgy]]. The [[radioactive]] [[isotope]] strontium-89, used for the treatment of [[bone cancer]], is usually administered in the form of strontium chloride. Seawater [[Aquarium|aquaria]] require small amounts of strontium chloride, which is consumed during the growth of certain [[plankton]].

===Dental care===
SrCl<sub>2</sub> is useful in reducing tooth sensitivity by forming a barrier over microscopic tubules in the [[dentin]] containing nerve endings that have become exposed by gum recession. Known in the U.S. as Elecol and [[Sensodyne]], these products are called "strontium chloride toothpastes", although most now use [[potassium nitrate|saltpeter]] (KNO<sub>3</sub>) instead which works as an analgesic rather than a barrier.<ref>{{cite web |url= http://www.sensodyne.co.uk/how_it_works.htm |publisher= [[Sensodyne]] |title= Sensodyne |access-date= 2008-09-05 |archive-url= https://web.archive.org/web/20080918193411/http://www.sensodyne.co.uk/how_it_works.htm |archive-date= 2008-09-18 |url-status= dead }}</ref>

=== Biological research ===
Brief strontium chloride exposure induces [[Parthenogenesis|parthenogenetic]] activation of [[oocyte]]s<ref>O'Neill GT, Rolfe LR, Kaufman MH. "Developmental potential and chromosome constitution of strontium-induced mouse parthenogenones" (1991) ''Mol. Reprod. Dev.'' 30:214-219</ref> which is used in developmental biological research.

=== Ammonia storage ===
A commercial company is using a strontium chloride-based artificial solid called ''AdAmmine'' as a means to store [[ammonia]] at low pressure, mainly for use in NO<sub>x</sub> emission reduction on [[diesel engine|Diesel]] vehicles. They claim that their patented material can also be made from some other salts, but they have chosen strontium chloride for mass production.<ref>{{cite web |publisher=Amminex A/S |title=AdAmmine™ |url=http://amminex.dk/technology/the-solid.aspx |access-date=2013-06-12 |url-status=dead |archive-url=https://web.archive.org/web/20130801102020/http://amminex.dk/technology/the-solid.aspx |archive-date=2013-08-01}}</ref> Earlier company research also considered using the stored ammonia as a means to store synthetic ammonia fuel under the trademark ''HydrAmmine'' and the press name "hydrogen tablet", however, this aspect has not been commercialized.<ref>{{cite conference |author=Tue Johannesen |title='Solidified' ammonia as an energy storage material for fuel cell applications |publisher=Amminex |conference=2006 Annual NH3 Fuel Conference, October 9 – 10, 2006, Golden, CO |url=https://nh3fuelassociation.org/wp-content/uploads/2012/05/amminex_johannessen.pdf |access-date=2022-11-16 |publication-date=May 2012}} Via [https://nh3fuelassociation.org/ NH3 Fuel Association website].</ref> Their processes and materials are patented. Their early experiments used [[magnesium chloride]], and is also mentioned in that article.

=== Soil testing ===
Strontium chloride is used with citric acid in soil testing as a universal extractant of plant nutrients.<ref>{{cite journal |last1=Simard |first1=R. R. |title=Strontium Chloride-Citric Acid Extraction Evaluated as a Soil-Testing Procedure for Phosphorus |journal=Soil Science Society of America Journal |date=1 March 1991 |volume=55 |issue=2 |page=414 |doi=10.2136/sssaj1991.03615995005500020021x|bibcode=1991SSASJ..55..414S }}</ref>