MgTube(Microtubular Basic Magnesium Carbonate) | Products | NITTETSU MINING CO.,LTD. R&D Department

MgTube™ is a microtubular particle with a unique morphology which has a porous shell.

MgTube™ can be applied as functional microcapsule by means of impregnation of liquid into microtubular structure or release of impregnated matter.

Liquid can be powderized by its impregnation into MgTube™.
MgTube™ can be used as a carrier with release sustainability which release impregnated matter gradually.
Impregnated component in MgTube™ can be released by compression force or acid stimulus.
MgTube™ can be applied as an adsorbent or absorbent using its porous structure.

Powder properties
chemical composition	mMgCO₃·Mg(OH)₂·nH₂O
particle size	outer (inner) diameter : 2 - 10(1 - 5)µm
particle size	length : 10 - 50µm
specific surface area	120 - 200m²/g
pore volume	7 - 12mL/g
liquid absorption	liquid paraffin : 250 - 310mL/100g pure water : 170 - 280mL/100g
powder density	0.05 - 0.2g/mL
pH	10.0 - 11.5

Schematic image of impregnation of liquid into MgTube™(Powderization of highly viscous silicone gel).

Schematic image of releasing impregnated component with sustainability(Carrier with release sustainability of naphthalene).

Applications: cosmetics、specialty paints、specialty pigments、adsorbent、absorbent、carrier (powderization agent, encapsulation agent)