potassium permanganate

Post Date:
Mar 02,2015
Expiry Date:
Aug 29,2015
Detailed Description:
Cas No. :7722-64-7 nature : the common gray
manganese KMnO4 custody. Dark
purple crystals. A metallic
sheen. Shy and maturity. Density
2.703. The melting point of 240 °
C decomposition. Water soluble.
That case ethanol decomposition.
Mainly for disinfectant and
oxidizer, bleach, gas absorbent
carbon dioxide intensive
preparation, water purification
agents. Hydrogen can be potassium
chloride, manganese dioxide and
potassium chlorate, then-chlorine
or carbon dioxide or ozone and
its solution in the system.
Electrolysis is potassium
permanganate from the main
production methods. Raw materials
Pyrolusite after smashing
concentrated KOH solution
together in the air calcination,
the MnO2 oxide K2 MnO4, water
immersion, in-MnO2- 4 100 ~ 280
grams / liter, KOH about 1 ~ 4
mole / liter electrolyte, in the
60 ° C electrolysis. Anode nickel
or Monel alloy anode reaction
MnO2-4 ��?MnO - e< 4 + / su k-;
cathode for steel (hydrogen). The
anodic current density of only 5
to 15 mA / cm 2 to reduce the
oxygen out; The cathode current
density is the anode 5 ~ 10 times
to make it a large number of
hydrogen, enough to prevent the
production of anodes MnO - 4
spread to the cathode, to be
reinstated again, so some may not
divide electrolyzer to reduce
energy consumption (cell voltage
of about 2.5 volts). When MnO2- 4
electrolysis to the original
concentrations of 10% removal,
cooling in KMnO4 crystallization.
CAS Registry Number:
7722-64-7
Synonyms:
C.I. 77755;Potassium permanganate [JAN]potassium oxido(trioxo)manganese;
Molecular Formula:
KMnO₄
Molecular Weight:
158.0339
Molecular Structure:
Hazard Symbols:
O:Oxidizing agent;
Xn:Harmful;
N:Dangerous for the environment;
Risk Codes:
R22:;
R50/53:;
R8:;
Safety Description:
S60:;
S61:;