Literature Silicone Rubber. SE-5401U is an ex tremely low temperature silicone r u b ber for molded and extruded seals and gaskets, and other uses. I t meets speci fications M I L - R - 5 8 4 7 D , Class I, Grade 40, and AMS-3334. Dept. IEC, Gen eral Electric, Silicone Products Dépt., Waterford, N. Y. C-16
ZIRCONIUM ACETATE SOLUTION,
22% Zr02
Color: Clear to very light amber Specific Gravity: 1.46 pH: 3.8 to 4.2 at 20° C Stable indefinitely at room temperature
APPLICATIONS ARE: 1. As an ingredient in "renewable" type water repellents for textiles. 2. As a catalyst for curing silicone resins in water-repellent treatments for leather and textiles. 3. For precipitation and fixation of many protein or carbohydrate type molecules (such as gelatin and starch) upon paper and fabrics.
File
D I V I S I O N NATIONAL LEAD COMPANY
General Offices Works and Research Laboratories Niagara Falls, N.Y.
Carbowax Polyethylene Glycols. A 65-page booklet gives properties, solubilities, specification limits, test methods, storage, handling, toxicology, and selected references. Special section devoted to uses. Dept. IEC, Union Carbide Chemicals Co.. 270 Park Ave., New York 17. N. Y. C-17
Polypropylene Glycols. Technical bulletin describes these polyethers which are used as raw materials for flexible, semirigid, and rigid urethane foams. Dept. IEC, Jefferson Chemical Co., Inc., 1121 Walker Ave., Houston 2. Texas. C-19 Corrosion-Resistant Resin. Bulletin 45-115 on Poxyglas tanks features the glass resin material and discusses manufacturing methods. Dept. IEC, Black. Sivalls & Bryson, Inc., 7500 E. Twelfth St.. Kansas City 26, Mo. C-20 Liquid Resin. D a t a sheet describes Novalac resin for ultrahigh temperature potting, casing, dipping, and coating compounds. Available in various colors or filled and unfilled. Dept. IEC, Isochem Resins Co., 221 Oak St., Providence 9, R. I. C-21 Phenolic Resins. Two new resins, Plyophen 23-017 and 23-057 have been developed, to withstand high temperatures encountered by missiles and space vehicles. Available in any quantity. Dept. IEC, Reichhold Chemicals, Inc., RCI Building, White Plains, Ν. Υ. C-22
SHIPPED in 500 lb. (net) drums with P. E. drum inserts.
Executive and Sales Offices 111 Broadway (Dept. IC), New York 6, N.Y.
Sturtevant Air Separators Increase 4 0 to 4 0 0 Mesh Output as Much as 3 0 0 % Feed spout
Organic Intermediates. New catalog discusses properties, specifications, and uses of commercially available chemical intermediates. Dept. IEC, Kay-Fries Chemicals, Inc., 180 Madison Ave., New York 16, N. Y. C-18
Introduced to meet the many demands for a more concentrated solution, ΤΑΜ Zirco nium Acetate Solution, 22% Ζ1Ό2, is now available to the chemical industry.
Send for Data
Size Requirements Getting Tougher?
HQ Zr
FOR
Please direct COMPOUNDS AND inquiries to our New York City offices CHEMISTRY Circle No. 13 on Readers' Service Card
Scintillation Chemicals. Cost and technical information are given for scintillation grade fluorescent chemicals. Bull. 611. Dept. IEC, Pilot Chemicals, Inc., 36 Pleasant St., Watertown 72. Mass. C-23 Silicone Catalog. Complete line of silicone products is described, and a selector guide for silicone rubber is given. Catalog CDS-129C. Dept. IEC, General Electric, Waterford, Ν. Υ. C-24 (Continued
on page
86
A)
9 Models avail able. Diameters from 3' to 18'
unaasoni
wsmm
C l o s e d - c i r c u i t air separation is of proved advantage in reduction processes. Result is a better, more uniform product. Grinding mills perform at top efficiency, output frequently increases as much as 300%, power costs drop as much as 50%.
P r e c i s e s e p a r a t i o n of all dry
powdered materials. Sturtevants cur rently classify sulfur, soybeans, phos phate, chocolate, feldspar, sand and ag gregates, pigments, limestone fillers, flour, abrasives, plastics, gypsum, ceram ics, cement and other products.
Improve s c r e e n i n g — Sturte-
vant Air Separators prevent blinding by removing undesirable tailings or fines from screen feed loads.
W o r k s Like Winnowing D o n e In a W h i r l w i n d Sturtevant Air Separators do a mechan ical job of winnowing. Precise control of whirlwind air currents and centrifugal force results in the desired size being lifted into fines cone, oversize falling into tailings cone. A 16 ft. Sturtevant, for example, has taken a feed rate of 800 tph, containing only a small percentage of desired fines, and delivered 30 tph 90% 200 mesh, re circulating the oversize through the grinding circuit. Send for Bulletin No. 087.
STURTEVANT MILL 105
COMPANY
C l a y t o n St., B o s t o n , M a s s .
Crushers · Grinders · Micron-Grinders · Separators Blenders · Granulators · Conveyors · Elevators Circle No. 54 on Readers' Service Card
VOL. 53, N O . 8
·
AUGUST 1961
85 A
