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Mubychem Group, established in 1976, is the pioneer manufacturer of Zinc Chloride, Ammonium Chloride, Calcium Chloride, Potassium Chloride, Sodium Acetate, Sodium Thiosulphate, Potassium Permanganate, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Potassium Permanganate BP Potassium Permanganate USP Manufacturers
CAS No.: 7722-64-7, Molecular Weight: 158.03, Chemical Formula: KMnO4
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Potassium Permanganate
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British Pharmacopoeia
Potassium Permanganate BP
KMnO4
158.0
DEFINITION
Content
99.0 per cent to 100.5 per cent.KMnO4.
CHARACTERS
Appearance
Dark purple or brownish-black,
granular powder or dark purple or almost black crystals, usually having a
metallic luster.
Solubility
Soluble in cold water, freely
soluble in boiling water.
It decomposes on contact with
certain organic substances.
IDENTIFICATION
A. Dissolve about 50 mg in 5 ml of
water and add 1 ml of ethanol (96 per cent) and 0.3 ml of dilute sodium hydroxide solution. A green colour develops. Heat to boiling.
A dark brown precipitate is formed.
B. Filter the mixture obtained in
identification test A. The filtrate gives reaction of potassium.
TESTS
Solution S
Dissolve 0.75 g in 25 ml of distilled water, add 3 ml of
ethanol (96 per cent) and boil for 2-3
min. Cool, dilute to 30 ml with distilled water and filter.
Appearance of solution
Solution S is colourless.
Substances insoluble in water
Maximum 1.0 per cent.
Dissolve 0.5 g in 50 ml of water R
and heat to boiling. Filter through a tarred sintered-glass filter.
Wash with water until the filtrate is colourless and collect the residue
on the filter. The residue, dried in an oven at 100-105 °C, weighs a maximum of
5 mg.
Chlorides
Maximum 200 ppm.
Sulphates
Maximum 500 ppm.
Potassium Permanganate USP
KMnO4 158.03
Permanganic acid (HMnO4),
potassium salt.
(KMnO4) [7722-64-7].
KMnO4 contains
not less than 99.0 percent and not more than 100.5 percent of KMnO4, calculated
on the dried basis.
Caution—Observe great care in
handling Potassium Permanganate, as dangerous explosions may occur if it
is brought into contact with organic or other readily oxidizable substances,
either in solution or in the dry state.
Identification— A solution
of it is deep violet-red when concentrated and pink when highly diluted, and
responds to the tests for Permanganate.
Loss on drying— Dry it over
silica gel for 18 hours: it loses not more than 0.5% of its weight.
Insoluble substances— Dissolve 2.0 g in 150 mL of water that previously has been warmed to steam-bath
temperature, and filter immediately through a tarred, medium-porosity filtering
crucible. Wash the filter with three 50-mL portions of the warm water, and dry
the filtering crucible and the residue at 105 for 3 hours: not more than 4 mg of
residue is obtained (0.2%).
Assay— Transfer about 1000
mg of Potassium Permanganate, accurately weighed, and for each mg of Potassium
Permanganate taken, 2.13 mg of sodium oxalate, previously dried at 110 to
constant weight and accurately weighed, to a 500-mL conical flask. Add 150 mL of
water and 20 mL of 7 N sulfuric acid, heat to about 80 , and titrate the excess
oxalic acid with 0.03 N potassium permanganate VS. Calculate the quantity, in
mg, of KMnO4 in the portion of Potassium Permanganate taken by the formula:
0.4718WS 0.9482V
in which 0.4718 is the KMnO4 equivalent, in mg, of each mg of sodium oxalate, WS is the weight, in mg, of sodium oxalate taken, 0.9482 is the quantity of KMnO4, in mg, in each mL of 0.03 N potassium permanganate, and V is the volume, in mL, of 0.03 N potassium permanganate consumed.
Potassium Permanganate ACS AR
Reagent Chemicals ACS Specifications
Potassium Permanganate
KMnO4
Formula Wt 158.03
CAS Number 7722-64-7
REQUIREMENTS
Assay: 
99.0%
KMnO4
MAXIMUM ALLOWABLE
Insoluble matter ..................... 0.2%
Chloride and chlorate (as Cl)
. 0.005%
Nitrogen compounds (as N) .. 0.005%
Sulfate (SO4) ........................ 0.02%
Potassium Permanganate BP
Potassium Permanganate USP
Potassium Permanganate Manufacturers at:
MUBY CHEMICALS
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI
400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610,
23723564. FAX: 91-22-23728264
e-mail:
info@mubychem.com
Cell Call
to Anmol: +91-9821870100
USA & Canadian Customers may Call
773-829-5811
Copyright and Usual Disclaimer is
Applicable.
Last updated
15 December, 2011
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