Product Capsules Lab" custom engineered and inter changeable glassware assemblies and components. Ace Glass Inc., Vineland, N. J. 56A Ware, Platinum. Circle 84A-2 for catalog on platinum crucibles. Also contains information on dishes, elec trodes, gauze, thermocouple and fur nace winding wire. J. Bishop & Co., Malvern, Pa. 84A-2 Ware, Porcelain. New packaging program provides delivery in clean, unbroken condition ready for imme diate use. Coors Porcelain Co., Golden, Colo. °8A-1 Ware, Quartz. Illustrated bulletin available on "Vitreosil" fused quartz tubing, crucibles, retorts, muffles, dishes, tanks, pots, trays. Thermal American Fused Quartz Co., Inc., 18-20 Salem St., Dover, N. J. 52A
Saves money because it's versatile Why buy four o r five mixers for different mixing chores—when you can handle them all with one basic L I G H T N I N — M o d e l F? Adjust it to run at speeds from 100 to 1600 R P M , with stepless control. Mix or stir any fluids up to 4,000 centipoises vis cosity. Run it 24 hours a day, if you need to —it's designed for continuous duty. Quiet friction drive provides extra torque at slower speeds; never needs oiling. Drive and 1/30-HP fan-cooled m o t o r are fully enclosed, safe with inflammables. Y o u r choice of bronze tank clamp o r ring-stand clamp; removable shaft a n d 2-inch propeller in 316 stainless steel o r Monel. Fully guaranteed. O r d e r from your supply house, o r write us. Specify L I G H T N I N Mod el F Mixer: For 11 0-volt 60-cycle 1 -phase For 220-volt 60-cycle 1-phase
$72.00 $76.00
Single-speed Direct Drive LIGHTNIN Mod el L mixes at a quiet, steady 1600 RPM— runs for years without maintenance. Totally enclosed motor is safe with inflammables. Choice of shafts, pro pellers. For 110-volt, $47.00. For 220-volt, $51.00. Get facts now on the complete selection of precision LIGHTNIN Mixers and accessories for laboratory mixing. To receive new descrip tive Bulletin B-112,check reader service card or write us direct.
Lightnin® Mixers MIXING
EQUIPMENT Co., Inc.
1 6 0 - n M t . R e a d B l v d . , Rochester 3 , N.Y. In Canada: Greey Mixing Equipment, Ltd., 7 0 0 Miranda Ave., Toronto 19, Ont. Circle No. 110 A-1 on Readers' Service Card, page 97 A 110 A
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ANALYTICAL CHEMISTRY
X-Ray Equiment. Information avail able on 2 instruments for studies by x-ray diffraction and x-ray spectros copy. Circle 16A-1 for consols model specifications and 16A-2 for portable table model generator details. Radio Corporation of America, Camden, N. J 16A-1,2 X-Ray Unit. New catalog available on the Hilger micro-focus x-ray unit that features high intensity focal spot. Jarrell-Ash Co., 32 Farwell St., Newtonville 60, Mass. 96A-2
CHEMICALS AND MATERIALS Acid Hydrofluoric. Company pack ages acid hydrofluoric 48% A.R. in new polyethylene container with controlleddelivery closure spout. Mallinckrodt Chemical Works, 2nd & Mallinckrodt Sts., St. Louis 7, Mo. 25A Chemicals. Circle 68A-1 for 16-page illustrated booklet entitled, "Column Partition Chromatography." Circle 68A-2 for specifications on new line of reagents used to bathe transistors, di odes and rectifiers. Circle 68A-3 for data on ethylenediaminotetraacetic acid reagent. Circle 68A-4 for information on Schain test reagent. Merck & Co., Inc., Rahway, N. J. 68A-1 to 4 Crystals. Available for immediate de livery are the following crystals: so dium iodide, sodium chloride, potas sium bromide, and anthracene. Crys tals, Inc., 123 Woodland Ave., Westwood, N. J. 91A-3 Filter Aids. Circle 23A-1 for bulletin on ash-free filter pulp. Circle 23A-2 for folder on anti-creep reagent fluid. Circle 23A-3 for folder on filter paper
N E W PYREX* Needle Valve Ware HEAVY DUTY STEMS Here's a new line of needle valve ware with stems twice as heavy.
This new design means greater strength and longer life in your ware.
NEW LARGE 4.7MM VALVE
3
Now available as well as the customary 2mm. PYREX Needle Valve Ware gives you these other advantages, too. Ground flanges. ALL PYREX flange faces are finely ground to assure a better seal, particularly under pressure. Non-contaminating. You get the chem ical stability of chemical glass No. 7740 in this new ware. Valve body and re tainer rings are pure TEFLON*. Complete Line. This new PYREX line includes the valves, ground joint connec tions, burettes, distilling heads, funnels, chromatographic tubes and stopcocks. Check your PYREX Laboratory Glass ware Catalog, LG-1, for sizes and prices. *T.M. for Du Pont Tetrafiuoroethylene Resin.
CORNING GLASS WORKS 69-12 Crystal Sfreet, Coming, Ν. Υ.
Corning means research in Glass Circle No. 110 A-2 on Readers' Service Card, page 97 A
