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Sodium Permanganate

Sodium permanganate is an inorganic compound, a salt of sodium metal and manganese acid with the formula NaMnO 4 , dark red crystals, soluble in water, form crystalline hydrates .

Sodium Permanganate
SodiumPermanganate.jpg
Sodium Permanganate
Are common
Systematic
name
Sodium Permanganate
Traditional namesSodium Manganese
Chem. formulaNaMnO 4
Physical properties
conditiondark red crystals
Molar mass141.93 g / mol
Density1.391 g / cm³
Thermal properties
T. melt.170 ° C
Classification
Reg. CAS number10101-50-5
PubChem
Reg. EINECS number233-251-1
Smiles
Inchi
RTECS
ChemSpider

Content

Getting

  • Oxidation of manganese (IV) oxide .
2MnO2+3NaClO+2NaOH→2NaMnOfour+3NaCl+H2O{\ displaystyle {\ mathsf {2MnO_ {2} + 3NaClO + 2NaOH \ {\ xrightarrow {}} \ 2NaMnO_ {4} + 3NaCl + H_ {2} O}}}  

Physical Properties

Sodium permanganate forms dark red hygroscopic crystals.

Very soluble in water (about 15 times better than potassium permanganate ).

Forms crystalline hydrates of the composition NaMnO 4 • n H 2 O, where n = 1, 3.

Chemical Properties

  • Similar to potassium permanganate .
  • Decomposes on heating:
2NaMnOfour→170oCNa2MnOfour+MnO2+O2{\ displaystyle {\ mathsf {2NaMnO_ {4} \ {\ xrightarrow {170 ^ {o} C}} \ Na_ {2} MnO_ {4} + MnO_ {2} + O_ {2}}}}  

Application

  • Use is limited due to strong hygroscopicity. It was used as part of a liquid catalyst for the decomposition of hydrogen peroxide in the propulsion system of a V-2 rocket.

Literature

  • Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1990. - T. 2. - 671 p. - ISBN 5-82270-035-5 .
  • Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
  • Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1972. - T. 2. - 871 p.


Source - https://ru.wikipedia.org/w/index.php?title=Sodium permanganate&oldid = 90129867


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