potash division - Industrial & Engineering Chemistry (ACS Publications)

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HOW CAN YOU

AVAILABILITY Immediate delivery in truck or carload quantities.

use this versatile material? INTERNATIONAL'S 99.0+%

MAGNESIUM OXIDE P E L L E T , P O W D E R E D . OR G R A N U L A R

PURITY Highest ever prod u c e d in p r o c e s s chemical quantities — Low Iron —Low Boron — Low Lime —Low Ignition Loss—Low Acid Insolubles. PRICE Lowest for this purity ever offered.

FORM

HAVE YOU CONSIDERED MgO FOR THESE OR OTHER USES? *

ALKALI PRECIPITATIONS-Since acid insolubles are less than 0.1%, précipitants prepared from International's MgO are consistently high in purity. Stoichiometric, laboratory-controlled, one-stage additions to an exact pH are possible. Incremental additions by trial and error in the plant are thus eliminated. Our MgO achieves gradual pH adjustment with maximum crystal growth, resulting in higher filtration and washing rates. Elevated temperatures and flocculating agents become unnecessary. Available MgO? — greater than 99.0%.

lime and silica i m p u r i t i e s , magnesite-chrome refractories made with International's MgO show high resistance to slag erosion. Ease of furnace feeding makes our pellet form ideal for this use. •

B L E N D I N G W I T H OTHER MAGNESIAS A d j u s t m e n t of activity or bulk density w i t h upgrade in purity is possible with International's unique MgO. Free flowing and slow hydration characteristics contribute to ease of handling.

LET'S TALK ABOUT QUALITY

k FUSED REFRACTORIES a) ELECTRICAL INSULATION - A nationally known research institute has proved the superiority of International's MgO. Initial resistance was shown to be consistently high. Life tests through 3600 hours proved insulation fused from International's MgO to have resistance measurement above other magnesias. Consider what this might mean in relation to rejects and failures. b) BASIC REFRACTORY BRICK - Due to low

Look at this typical analysis of just one of our high purity grades. MgO -99.5 S i 0 2 - 0.05 Fe 2 0 3 — 0.06

AI2O3 -0.04 CaO -0.08 Na+K -0.05

Boron Range —10 ppm to 100 ppm Β Powdered as fine as 90% minus 325 mesh

Technical d a t a r e l a t i v e to the a b o v e a r e a v a i l a b l e upon request. Also for your e x p e r i m e n t s , w e w i l l furnish a d e ­ q u a t e samples of International's M g O in a g r a d e suitable to your needs if you w i l l indicate your a r e a of interest.

potash division INTERNATIONAL MINERALS & CHEMICAL CORPORATION · GENERAL OFFICES: 2 0 NORTH WACKER DRIVE, CHICAGO 4 8 5 LEXINGTON A V E N U E , NEW YORK I T · M I D L A N D , TEXAS · F U L T O N N A T I O N A L BANK BLDG., ATLANTA, GA. Far further information, circle number 12 A on Readers' Service Card, page 135 A

12 A

INDUSTRIAL AND ENGINEERING CHEMISTRY

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