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A manganate(VII) is a chemical compound that contains the manganate(VII) ion (MnO4−). Because manganese is in the +7 oxidation state, the manganate(VII) ion is a strong oxidizer.

In an acidic solution, manganate(VII) will reduce to the colourless +2 oxidation state of the Manganese (Mn2+) ion.

16 hydronium + 2 MnO4− + 10 chloride → 2 manganese + 5 chlorine + 24 H2O
6 hydronium + 2 MnO4− + 5 HCOOH → 8 H2O + 2 manganese + 5 carbon dioxide

In a base (chemistry)ic solution, manganate(VII) will either reduce to the brown +4 oxidation state of MnO2 or to the green +6 oxidation state of MnO42−.

4 hydroxide + 2 MnO4− + 3 oxalate → 2 manganese(IV) oxide + 6 carbonate + 2 H2O 3 hydroxide + 2 MnO4− + bisulfite → 2 manganate + sulfate + 2 H2O

Production Permanganates may be produced by oxidization of manganese compounds by strong oxidizing agents, for instance, sodium hypochlorite or lead dioxide:

2 manganese chloride + 5 sodium hypochlorite + 6 sodium hydroxide → 2 sodium permanganate + 9 NaCl+ 3 H2O
2 manganese sulfate + 5 lead dioxide+ 3 sulphuric acid → 2 HMnO4+ 5 PbSO4 + 2 H2O

Or by dismutation of manganates:

3 Na2MnO4 + 2 H2O → 2 sodium permanganate + manganese dioxide + 4 NaOH

Properties Manganates(VII) are salts of permanganic acid. Manganate(VII) is a strong oxidizer, and similar to perchlorate. Being a strong oxidiser it is in common use in qualitative analysis experiments involving redox reactions(permanganometry).Besides this, it is stable.

It is a useful reagent, though with organic compounds, it may just destroy them entirely.

Manganates(VII) are not very thermically stable. For instance, potassium permanganate decomposes at 230 °C:

2 potassium permanganate → potassium manganate + manganese dioxide + oxygen

Compounds

• Potassium permanganate, KMnO4
• Sodium permanganate, NaMnO4

See :Category:Permanganates for a bigger list.

External links

• National Pollutant Inventory - Manganese and compounds Fact Sheet

A manganate(VII) is a chemical compound that contains the manganate(VII) ion (MnO4−). Because manganese is in the +7 oxidation state, the manganate(VII) ion is a strong oxidizer.

In an acidic solution, manganate(VII) will reduce to the colourless +2 oxidation state of the Manganese (Mn2+) ion.

16 hydronium + 2 MnO4− + 10 chloride → 2 manganese + 5 chlorine + 24 H2O
6 hydronium + 2 MnO4− + 5 HCOOH → 8 H2O + 2 manganese + 5 carbon dioxide

In a base (chemistry)ic solution, manganate(VII) will either reduce to the brown +4 oxidation state of MnO2 or to the green +6 oxidation state of MnO42−.

4 hydroxide + 2 MnO4− + 3 oxalate → 2 manganese(IV) oxide + 6 carbonate + 2 H2O 3 hydroxide + 2 MnO4− + bisulfite → 2 manganate + sulfate + 2 H2O

Production Permanganates may be produced by oxidization of manganese compounds by strong oxidizing agents, for instance, sodium hypochlorite or lead dioxide:

2 manganese chloride + 5 sodium hypochlorite + 6 sodium hydroxide → 2 sodium permanganate + 9 NaCl+ 3 H2O
2 manganese sulfate + 5 lead dioxide+ 3 sulphuric acid → 2 HMnO4+ 5 PbSO4 + 2 H2O

Or by dismutation of manganates:

3 Na2MnO4 + 2 H2O → 2 sodium permanganate + manganese dioxide + 4 NaOH

Properties Manganates(VII) are salts of permanganic acid. Manganate(VII) is a strong oxidizer, and similar to perchlorate. Being a strong oxidiser it is in common use in qualitative analysis experiments involving redox reactions(permanganometry).Besides this, it is stable.

It is a useful reagent, though with organic compounds, it may just destroy them entirely.

Manganates(VII) are not very thermically stable. For instance, potassium permanganate decomposes at 230 °C:

2 potassium permanganate → potassium manganate + manganese dioxide + oxygen

Compounds

• Potassium permanganate, KMnO4
• Sodium permanganate, NaMnO4

See :Category:Permanganates for a bigger list.

External links

• National Pollutant Inventory - Manganese and compounds Fact Sheet

Permanganate - Wikipedia, the free encyclopedia
A permanganate is the general name for a chemical compound containing the manganate(VII) ion, (MnO 4 −). Because manganese is in the +7 oxidation state, the manganate(VII) ion is ...

Potassium permanganate - Wikipedia, the free encyclopedia
Potassium permanganate is the chemical compound K Mn O 4. In this salt, manganese is in the +7 oxidation state. The salt is also known as "permanganate of potash.

Safety (MSDS) data for potassium permanganate
Safety (MSDS) data for potassium permanganate. Safety data for potassium permanganate. Click here for data on potassium permanganate in student-friendly format, from the HSci ...

Potassium Permanganate
CAS No. 7722-64-7: EINECS No. 231-760-3: Appearance: Dark purple powder : Typical Analysis : Assay >97.5 % Moisture content

Chemical Safety Data: Potassium permanganate
Chemical Safety Data: Potassium permanganate ... Common synonyms: Condy's crystals: Formula: KMnO 4: Physical properties: Form: dark red to purple crystalline powder

permanganate - definition of permanganate in the Medical dictionary ...
permanganate /per·man·ga·nate/ (per-mang´gah-nat) a salt containing the MnO4- ion.

potassium permanganate - Hutchinson encyclopedia article about ...
potassium. Soft, waxlike, silver-white, metallic element, atomic number 19, relative atomic mass 39.0983. Its chemical symbol comes from the Latin kalium.

Definition: permanganate from Online Medical Dictionary
The Online Medical Dictionary is a searchable dictionary of definitions from medicine, science and technology.

alkenes and potassium manganate(VII) (permanganate)
The oxidation of alkenes by potassium manganate(VII) (potassium permanganate) solution ... This page looks at the reaction of the carbon-carbon double bond in alkenes such as ...

potassium permanganate definition of potassium permanganate in the ...
potassium (pətăs`ēəm), a metallic chemical element; symbol K [Lat. kalium =alkali]; at. no. 19; at. wt. 39.0983; m.p. 63.25&degC;; b.p. 760&degC;; sp. gr. .862 at 20&degC ...