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Potassium permanganate

Potassium permanganate is an inorganic chemical compound with the formula KMnO4. It is a salt consisting of K+ and MnO4– ions. Formerly known aspermanganate of potash or Condy's crystals, it is a strong oxidizing agent. It dissolves in water to give intense purple solutions, the evaporation of which gives prismatic purplish-black glistening crystals.[1]
Potassium Permanganate is specifically manufactured for environmental applications such as remediation of soils and groundwater. This product can be used to degrade a variety of contaminants such as chlorinated solvents, polyaromatic hydrocarbons, phenolics, organo-pesticides and substituted aromatics. F2PP-98 Potassium Permanganate is shipped with a Certificate of Analysis (COA) to document assay and pH as well as a manufacturing Certificate of Conformance (COC) for trace metals

Potassium permanganate decomposes when exposed to light:
2 KMnO4(s) → K2MnO4(s) + MnO2(s)+O2(g)

Disinfectant and water treatment
As an oxidant, potassium permanganate can act as a antiseptic. For example, dilute solutions are used to treat canker sores (ulcers), disinfectant for the hands and treatment for mild pompholyx, dermatitis,[4][5] and fungal infections of the hands or feet.[6] Potassium permanganate, obtainable at pool supply stores, is used in rural areas to remove iron and hydrogen sulfide (rotten egg smell) fromwell and waste water. Historically it was used to disinfect drinking water.[7][8]It currently finds application in the control of nuisance organisms such as Zebra mussels in fresh water collection and treatment systems.[9]

Properties
Molecular formula
KMnO4
Molar mass
158.034 g/mol
Appearance purplish-bronze-gray needles
magenta–rose in solution
Odor
odorless
Density
2.703 g/cm3
Melting point
240 °C decomp.
Solubility in water
6.38 g/100 ml (20 °C)
25 g/100 mL (65 °C)
Solubility
decomposes in alcohol andorganic solvents

TYPICAL PROPERTIES:
Potassium Permanganate (KMnO ) content ......98% min.
Cadmium (Cd) ..................... .....................0.5 ppm max
Chromium (Cr) ....................... ...................0.5 ppm max
Lead (Pb) ................................ .................10 ppm max
Mercury (Hg) ............................ ................0.05 ppm m
Sulphates (SO ...................... ....................0.2 wt% max
Insoluble residue .................... ...................0.05 wt% m
Water ..................................... ................0.05 wt% m
Type of Granulation ................... ................crystals
Chemical / Phystical Data
Formula – KMnO4
Appearance – Dark Purple Crystals with a Metallic Sheen
Formula Weight – 158.0 g/mol
Form – Granular Crystalline
Specific Gravity – Solid – 2.703 g/cm3

3% Solution – 1.020 g/mL by weight, 20º C / 4º F
Bulk Density – Approximately 100 lb/ft3
Decomposition may start at 150º C.

Specification
1)Index
2)Granular or Needle shaped
3)Free flow grade
4)Pharmaceutical Grade
5)Food Grade
6)Superior Grade
7)First Grade

ANSI/AWWA B603-2003
USP24
BP2000
GB2513-2004

Potassium Permanganate(KMNO4) by fraction of mass%≥
99.3
99.1
97.5
99.0-100.5
99.0-100.5
99.0-100.5
Chloride(on Cl basis) by fraction of mass%≤
0.01
0.02
0.10
—
0.02
0.01
Sulfate(on SO4 basis) by fraction of mass%≤
0.05
0.10
0.20
—
0.05
0.05
Water insolubles by fraction of mass%≤
0.15
0.20
1.70
0.2
1.0
0.20
Moisture(H2O) by fraction of mass%≤
0.50
0.50
0.50
0.5
—
—
Cadmium(Cd) by fraction of mass%≤
0.01
0.01
0.01
—
—
—
Chromium(Cr) by fraction of mass%≤
0.05
0.05
0.05
—
—
—
Lead(Pb) by fraction of mass%≤
0.005
0.005
0.005
—
—
—
Mercury(Hg) by fraction of mass%≤
0.001
0.001
0.001
—
—
—
Arsenic(As) by fraction of mass%≤
0.002
0.002
0.002
—
—
0.0002
Mobility(0.75mL Water/100g Potassium Permanganate)
—
—
Pass the Test
—
—
—
Granularity:Particles retained in 425um Sieve Plate%≤
—
—
20
—
—
—
Granularity:Particles passed through 75um Sieve Plate%≤
—
—
7
—
—
—