IS 1473 : 2004 Methods of Chemical Analysis of Manganese Ores
ICS 73.060.20 | MTD 34 |
|
Reaffirmed 2021 |
1 Scope
This standard prescribes the following methods for determinationof various elements in manganese ores:
a) Chemical analysis by gravimetric and volumetric method, and
b) Atomic absorption method.
The gravimetric and volumetric methods are suitable fordetermination of silica, barium oxide, manganese, iron, phosphorus,sulphur, alumina and other elements in manganese ores andconcentrates.
The atomic absorption method can be used for the determinationof Si, Al, Ti, Fe, Ca, Mg, Cu, Pb, Zn, Co, Cr, V, Ba and K, in thefollowing ranges and composition:
SiO2 | 0.25 | percent | to | 25 | percent |
Al2O3 | 0.12 | percent | to | 25 | percent |
TiOAl2 | 0.20 | percent | to | 2.5 | percent |
Fe2O3 | 50 | ppm | to | 22.5 | percent |
CaO | 20 | ppm | to | 10 | percent |
MgO | 5 | ppm | to | 10 | percent |
Na2O | 5 | ppm | to | 500 | ppm |
K2O | 5 | ppm | to | 500 | ppm |
Cn | 10 | ppm | to | 0.25 | percent |
Pb | 25 | ppm | to | 0.25 | percent |
Zn | 5 | ppm | to | 0.25 | percent |
Cr | 10 | ppm | to | 0.25 | percent |
Co | 10 | ppm | to | 0.25 | percent |
V | 250 | ppm | to | 0.25 | percent |
2 References
IS 264 : 1976 Nitric acid
IS 265 : 1993 Hydrochloric acid
IS 266 : 1993 Sulphuric acid
IS 323 : 1959 Specification for rectified spirit
IS 1070 : 1992 Reagent grade water
IS 1449 : 1976 Methods of sampling of manganese ore
IS 7659 : Part 1 : 1975 Reagents and standard solutions for use in chemical analysis of metals, ores and minerals: Part 1 Volumetric solution
IS 11895 : 1986 Classification of manganese ore, ferruginous manganese ore, silicious manganese ore and manganiferrous iron ore