NEW EQUIPMENT AND MATERIALS
Improved CorrosionResistant Mortar Synar, an inorganic acid-resistant mortar, is suggested as a lining ma terial for operations up to 1800° F . Synar hardens by chemical action and is not dependent on evapora tion or dehydration. Dept. IEC, Corrosion Engineering Products Department, Pennsalt Chemicals Corp., Natrona, Pa. 19
Silicon Carbide A new product, GRB silicon car bide, is a lightweight material with unusually high thermal shock and erosion resistance. Material shows great promise as refractory m a terial. Dept. IEC, The Carborun dum Co., Niagara Falls, Ν. Υ. 20
Nylon Pressure Tubing Flexible polyamide tubing which can be used continuously in an oxi dizing atmosphere at temperatures up to 225° F. is available. Called
Grade tubing only. Corp. Pa.
T R , it supplements current recommended to 180° F. Dept. IEC, The Polymer of Pennsylvania, Reading, 21
resistance, and freeze-thaw sta bility. Dept. IEC, Shawinigan Resins Corp., Springfield 1, Mass. 23
Detergent for Metal Cleaning Protective Coating A new protective coating is based on the reaction of a specially blocked isocyanate and an aminebearing resin in aqueous solution. Preliminary tests indicate a strong potential for the new system as an easy-to-apply primer. Dept. IEC, Mobay Chemical Co., Pittsburgh 34, Pa. 22
Triton QS-15 is said to combine vigorous detergent action with solu bility in relatively high concentra tions of alkaline cleaners while ex hibiting chemical stability in strong caustic. T h e chemical is anionic under alkaline and cationic under acid conditions. Dept. IEC, Rohm & Haas Co., Washington Square, Philadelphia 5, Pa. 24
Copolymer for Water Systems Homopolymer Emulsion A fine particle poly (vinyl ace tate) homopolymer emulsion, GELVA TS-85, is available. Emul sion has average particle size of 0.2 to 0.3 micron, emulsion vis cosity of 1400 to 1700 c.p.s. at 5 5 % solids. I t is said to have excellent mechanical stability, good blocking
mixmagstir M i x m a g s t i r has been designed to assure optimum performance char acteristics, it is low in height and weight to increase ease of position ing the unit. Housing is of aluminum and can be easily clamped in any position by use of its associated support rod. Four Neoprene f e e t anchor the unit to the table.
Vinylpyrrolidone-vinyl acetate copolymer in solid form is suggested where it is necessary or desirable to avoid alcohol. Known as P V P / V A S-630, copolymer repre sents a monomer ratio of 6 0 % vinylpyrrolidone and 40% vinyl acetate. Dept. IEC, Anatara Chemicals, 435 Hudson St., New York 14, Ν. Y. 25
Do Scaling Troubles "get you down" HIGH-SPEED, AUTOMATIC, ACCURATE
SCHAFFER POIDOMETERS provide
a sure
remedy
An Ohmite Rheostat controls the speed from a nearly stopped posi tion to a very rapid rotation of 3000 RPM (without load). Genuine " D i a l c o " lamp assembly using a neon lamp and a multi-vue red cap, visible from many angles, provides a visible indication of whether the unit is ON or OFF. An integral part of the assembly is a built-in resistor that helps to prolong the life of the lamp which will give over 4000 hours of continuous serv ice while drawing a negligible amount of current. Heavy duty SPST toggle switch with an ON-OFF plate to start and stop the motor.
magnetic power stirrer! low-thin design! neon on-off light! continuous speed control! continuous duty! THE
Aluminum support rod 7 / 1 6 * diam eter 5" long can be threaded into fitting on rear of unit so that it may be clamped on support rods in almost any position. Spinbars — Teflon Molded Magnetic Stirring Bars—are supplied with the unit in three sizes: %'. 1" and 1Ά" lengths. Other sizes available at any Laboratory Supply House. AVAILABLE AT ANY LABORATORY SUPPLY HOUSE
ONLY MAGNETIC MIXER WHICH ACTUALLY HAS TEST EQUIPMENT
Electronic
Bulk material handlers are immune to "headaches" in the scaling department—after SCHAFFER Poidometers are installed. These units supply reliable weight data at any processing stage, whether the operation involves weighing, mixing, blending, feeding, recording or proportioning. Durable, easy-to-operate Poidometers are unequalled for continu ous, trouble-free, economical service. Available
with total
weight
recorders, and
remote
OVER 1 5 0 0 NOW
SERVING INDUSTRY
CATALOG N O . 3 - A .
DESIGN
LABORATORY EQUIPMENT Circle No. 59 on Readers' Service Card
INDUSTRIAL AND ENGINEERING CHEMISTRY
for
WRITE F O R
SCHAFFER POIDOMETER CO.
714 BALTIMORE · P. 0 . BOX 213 · KANSAS CITY 5, MO.
116 A
controls
showing and changing feed rate.
Circle No. 57 on Readers' Service Card
fSlSTsrS;
