Reactive Calcined Technical Grade Magnesium Oxide


Causmag® TGM is a reactive technical grade Magnesium Oxide produced from high purity Cryptocrystalline magnesite. The distinguishing feature of TGM is its consistent high surface area, which is important to many technical applications.


Causmag® TGM is employed in an ever widening range of usage, including: Neutralizing acidic waste waters, water treatment plants, production of stock blocks, magnesium precursor of allied chemical compounds, paper production and many others.
Compared with other products commonly used as neutralizing agents, TGM is safer and easier to store and handle and has a high neutralizing capacity. Most magnesium salts formed during processing are readily soluble in water, thus ensuring a rapid, clean and efficient neutralizing operation without subsequent sludge disposal problems.


Typical Specification
Magnesium Oxide (MgO)% Ignited Basis 97 96.5 min
Calcium Oxide (CaO) % 1.3 1.5 max
Silica (SiO2) % 1.3 1.5 max
Iron Oxide (Fe2O3) % 0.2 0.2 max
Aluminium Oxide (Al2O3) % 0.2 0.2 max
Loss on ignition % 2.5 3.5 max
As < 0.5 ppm
Cd < 0.1 ppm
Hg < 0.01ppm
Pb < 0.5 ppm

Physical Properties

Bulk Density, loose, kg/m3 (lb/ft3) 500 (31) N/A
Mean particle size, microns 5 3-8
Surface area, m2/gram 60 50-80
Citric acid activity, seconds 18 25-12
Neutralizing Value 240
Screen size, % passing 75 micron, wet(200#) 100 99
Screen size, % passing 45 micron, wet(350#) 95 95


Custom milled – 50 bags/pallet, 20 kg

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