Sodium Permanganate

Sodium permanganate  is the inorganic compound with the formula NaMnO4. It is closely related to potassium permanganate and behaves similarly to potassium permanganate. It dissolves readily in water to give deep purple solutions, evaporation of which gives prismatic purple-black glistening crystals of the monohydrate NaMnO4·H2O.

Grades and Specifications

Sodium Permanganate 20% Solution
Description Standards
Assay as NaMnO4 20% ± 0.50%
Insolubles < 0.01%
pH value 6 – 8
Density gms/cm³ at 25°C 1.15 – 1.17
Potassium as K < 0.10%
Chloride as Cl < 0.05%
Sulphate as SO4 < 0.10%
Sodium Permanganate 40% Solution
Description Standards
Assay as NaMnO4 40% ± 1%
Insolubles < 0.05%
pH value 6 – 8
Density gms/cm³ at 25°C 1.35 – 1.39
Potassium as K < 0.15%
Chloride as Cl < 0.10%
Sulphate as SO4 < 0.10%
Heavy metals Not detected

Technical Data

Molecular Weight:          142
Color and Appearance: Dark reddish purple Liquid
Solubility in Water:       Miscible in all proportions
Decomposition:       > 150°C

Uses