Chemistry:Manganese(II) chlorate

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Manganese(II) chlorate
Names
Systematic IUPAC name
Manganese(II) dichlorate[1]
Other names
  • Manganese dichlorate
Identifiers
3D model (JSmol)
ChemSpider
Properties
Mn(ClO3)2
Appearance Viscous pink liquid
Melting point −18 °C (0 °F; 255 K)
Boiling point 6 °C (43 °F; 279 K) (decomposes)
Soluble
Hazards
GHS pictograms GHS01: Explosive
Related compounds
Other anions
Manganese(II) perchlorate
Other cations
Copper(II) chlorate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Manganese(II) chlorate is an unstable chemical compound with the formula Mn(ClO3)2. It is unstable even in dilute solution. As a hexahydrate, it is solid below −18°C. Above this it melts, to form an extremely explosive pink liquid.[2]

Preparation

Manganese(II) chlorate was produced by the reaction of manganese(II) sulfate and barium chlorate.[3] The water was removed by boiling in vacuum. Then the temperature was lowered to -80°C which resulted in a pink solid. Then it was cleaned with liquid nitrogen and potassium hydroxide to remove the decomposition products.[2]

Properties

Manganese(II) chlorate forms the hexahydrate when solid, the water that cannot be removed. It decomposes above 6°C, to manganese(IV) oxide, chlorine dioxide, and water. In liquid form it is very viscous and extremely explosive. When heated to room temperature, it explodes with a sharp report.[2]

References

  1. "Manganese(2+) chlorate hydrate (1:2:6)" (in English). ChemSpider. http://www.chemspider.com/Chemical-Structure.26667097.html. 
  2. 2.0 2.1 2.2 Brown, F. E.; Woods, J. D. ( (1953). "Preparation and Some Properties of Manganese (II) Chlorate" (in English). Proceedings of the Iowa Academy of Science (UNI Scholar Works) 60 (34): 6. https://scholarworks.uni.edu/pias/vol60/iss1/34. Retrieved 23 August 2021. 
  3. R. D. W. Kemmitt; R. D. Peacock; J. C. Bailar; H. J. Emeléus; Ronald Nyholm (January 26, 2016). Nyholm, Nyholm. ed (in English). The Chemistry of Manganese, Technetium and Rhenium. Elsevier Science. pp. 226. ISBN 9781483187624.