Eberbach CORPORATION

oil from delivery air, carrying handle, 2 serrated hose connec- tions, switch, cord and plug. Pressures up to 25 lbs.per square inch for intermittent ...
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ANALYTICAL

38 A

CHEMISTRY

Rapid, Quantitative separation of metals by DYNA-CATH mercury cathode This modern apparatus makes mercury cathode a practical analytical tool. DynaCath does a fast, complete job in separation of metals. A novel magnetic circuit causes the electrolyte and mercury to move in opposite directions, providing counter-cur­ rent stirring. The ferromagnetic metals formed at the interface are drawn beneath the mercury surface, providing a continu­ ously clean surface and preventing re­ solution of deposited metals. Ask for Bulletin 220-D. CERIUM in STAINLESS STEEL Our Working Manual describes rapid method. Ask for a copy.

SCIENTIFIC INSTRUMENTS E-APPARATUS

Eberbach

CORPORATION

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G A S T Portable VACUUM-PRESSURE PUMPS with GAUGES and HANDLE These vacuum and pressure pumps are the most compactly built units on the market, because the pump is an integral part of the driving motor. The unit as shown is complete with no extra mounting base, gauges, driving mechanism or other parts to buy.

No. 8 4 3 5 8 — P U M P , vacuum and pressure, complete as described, with V* H.P. motor for use on 115 volts, $ 6 0 cycles A . C each

75. 00

No. 8 4 3 5 9 — P U M P , vacuum and pressure, without gauges or carrying handle. For use on 11 5 volts, 6 0 cycles, $ A.C each

66.'

Pump is supplied with a 2-inch vacuum gauge reading from 0 to 30 inches Mercury, 2-inch pressure gauge reading from 0 to 30 lbs., combined oiler and intake filter, oil trap for removing oil from delivery air, carrying handle, 2 serrated hose connec­ tions, switch, cord and plug. Pressures up to 25 lbs. per square inch for intermittent service, 15 lbs. for continuous service and vacuum as high as 27 inches of mercury are obtainable. The free air displacement is 1.3 cu. ft. per min. and actual free air delivery is 1 cu. ft. per min. at 1 0 psi.

STANDARD SCIENTIFIC SUPPLY CORP. 3 4 West 4th Street LABORATORY

APPARATUS

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New York 12, Ν. Υ.

— REAGENTS

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CHEMICALS

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