316 STAINLESS STEEL

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316 STAINLESS STEEL Welded

BOURDON TUBE Incorporated In This New Series

MERCOID PRESSURE CONTROLS

S E R I E S D - 4 1 , 2 4 3 , 541 316 stainless steel Bourdon tube and pressure connection. All parts in contact with pressure media are of 316 stainless steel. Has outside adjustments. V i s i ­ ble calibrated dial, and hermet­ ically sealed mercury contact. Internal mechanism is nickel plated. Available in operating ranges from 30" vac.-75 psig. up to 100-1000 psig., with varying dif­ ferentials and electrical capac­ ities to meet your application.

CORROSION added effects of weather and direct sunlight. L i g h t w e i g h t Ducts f o r N e w P l a n t , Too

Though not as resistant to me­ chanical shock as metal or wood, and restricted to maximum operat­ ing temperatures of about 120° C. in this application, resin-bonded glass fiber does show other advantages. Its light weight and its availability in prefabricated sections are valuable "plus factors." Weighing only 2 5 % as much as the lined steel they replaced, many of the units could be installed without need for rigging equipment or other mechanical help. Where the original supporting steel could be used, maintenance men merely lifted the units into place by hand, closed the flange joints, and tightened the hangers. Where necessary, they performed simple field "welding" to join prefabricated sections together. The light weight of the glass-fiber reinforced material permitted re­ duction in size and number of the supporting members. A coating of plain resin solution, to reduce further corrosion of the steel members and tie bolts, has greatly cut down re­ placement of these support structures. This polyester solution also greatly extends the life of wooden hoods. When Carborundum Metals de­ cided to build another zirconiumhafnium production plant at Parkersburg, W. Va., the same high level of corrosion threatened. Glass-fiberreinforced polyester resin—mostly from du Verre, Inc. (Arcade, Ν. Υ.), which had helped Carborundum solve its earlier corrosion problems— was specified for the entire initial ventilation system in this new plant. The service history here, as at Akron, continues to emphasize the benefits of resin-bonded glass fiber for this severe type of corrosive environment.

THE MERCOID CORPORATION 4209 BELMONT AVE., CHICAGO 41, ILL

Semi-Commercial {Pilot Plant Quantities)

METHYLETHANOLAMINE 2178 CH3NHC2H4OH

Mol. Wt. 7 5 . 1

Sp. gr. @ 2 0 ° C . — 0 . 9 4 9 5 % distills between 155-165°C.

METHYLDIETHANOLAMINE 2146 CH 3 N(C 2 H40H) 2

Mol. Wt. 119.1

Sp. gr. @ 2 0 ° C . — 1 . 0 4 9 5 % distills between 2 4 0 - 2 5 5 ° C .

ETHYLETHANOLAMINE 1111 C 2 H s NHC 2 H 4 0H

Mol. Wt. 89.1

Sp. gr. @ 2 0 ° C . — 0 . 9 1 IBP 1 6 0 ° C ; FBP 1 7 0 ° C .

ETHYLDIETHANOLAMINE 1108 C2HÎN(C2H4OH)2

Mol. Wt.

133.1

Sp. gr. @ 2 0 ° C . — 1 . 0 1 IBP 2 4 6 ° C ; FBP 2 6 0 , , C .

1-DIMETHYLAMIN0-2-PR0PAN0L 2445 (CH 3 ) 2 NCH 2 CHOHCH 3 Mol. Wt. 103.2 Sp. gr. @ 2 0 ° C . — 0 . 8 5 9 5 % distills between 121-127°C.

Technical liferafure and samples available on request.

PENNSALT CHEMICALS CORPORATION Three Penn Center · Philadelphia 2, Pa.

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Circle No. 108 on Readers' Service Card 66 A

ALKYL ALKANOL AMINES

Market Development Dept. · Industrial Chemicals Division

Three case styles: General Pur­ pose N E M A 1 ; Weather-Proof N E M A 1A, 2, 3, 4; ExplosionProof Class 1 Group C , & D; Class 2 Group E, F, G , N E M A 7, 9, 9 A . W R I T E FOR B U L L E T I N 019

PENNSALT

INDUSTRIAL AND ENGINEERING CHEMISTRY

Pennsalt Chemicals ESTABLISHED 1850 Circle No. 29 on Readers' Service Card