Uncoated Synthetic Magnesium Hydroxide

This product is used as a highly efficient non-toxic inorganic flame retardant, filler, and smoke-suppressing additive for plastics and polymer compounds; in pharmaceuticals for magnesium-containing preparations; in the food industry as additive E528; as well as in the production of lubricating oil additives, catalysts, industrial cleaning agents, cosmetics, pigments, and magnesium compounds.

Appearance

White powder

Specification

INDICATOR NAME Grade
NikoMag® A5
Actual data
NikoMag® A7
Actual data
NikoMag® A10
Actual data
Mass fraction of magnesium hydroxide, % , min.
99.8
99.8
99.8
Mass fraction of volatile substance at 105°C,% max.
0.3
0.3
0.3
Mass fraction of iron (Fe), ppm, max.
50
50
50
Mass fraction of calcium (Ca), ppm, max.
100
100
100
Mass fraction of chlorides (Cl–), ppm, max.
200
200
200
Mass fraction of sulfur (S), ppm, max.
200
200
200
Mass fraction of sodium (Na), ppm, max.
200
200
200
Bulk density, g/cm3, min.
0.3
0.3
0.3
Specific surface area, m2/g
4 – 6
6 – 9
9 – 11
Whiteness, %, min.
96.0
96.0
96.0
Filter screening test (no 0045), %, max.
0.1
0.1
0.1
Particle size distribution, µm:
a) diameter of 10% of particles (d10) max.
0.7
0.5
0.3
b) diameter of 50% of particles (d50) max.
1.8
1.2
1.0
c) diameter of 90% of particles (d90) max.
3.0
2.5
2.3
Surface treatment
Uncoated
Uncoated
Uncoated
Crystal shape
Hexagonal
Hexagonal
Hexagonal

Additional documentation