i ^ e New WilTèms
SPOLYTRON Ε WARING BLENDOR x ATTACHMENT 9
FOR
« MIXING · HOM0GEN1ZATI0N « DISPERSIONS · DEFIBRATIONS • EMULSIFICATIONS · EXTRACTIONS • CHEMICAL REACTIONS
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This new Swiss-designed, precisionmachined rotor-stator assembly greatly expands the usefulness of your Waring Biendor. The three-blade rotor, forcing material through the eight slots of the stator, gives you a high s n eed sliearin** action for faster mixing, homogenizing.
| FITS STANDARD WARING β BLENDOR MOTOR BASE Designed for use in standard Waring Cloverleaf Jar; supplied assembled in jar or separately for mount ing in your own jar
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EQUIPMENT
Device Measures Tension A n e w tensiometer has been devel oped by Fisher Scientific, Pittsburgh, to determine surface or interfacial tension. Based on the ring method, it gives a reading in as little a s 15 seconds and is readable to within :±0.05 dyne, the company says. T h e unit consists of a wire torsion balance, a measuring dial (dynes per cm. ) , a weighted platinum-iridium ring 6 cm. in mean circumference, and a movable sample platform, T o deter mine surface tension, the ring is im mersed in the sample, adjusted to the surface, and u p w a r d tension applied. The dial reading is m a d e when the ring breaks from t h e surface. To get interfacial tension, ring tension is applied away from the liquid of higher surface tension a n d toward t h e liquid of lower surface tension. ΕΪ
* Vibrating
railroad
car
shaker
to
empty hopper cars is now available from Syntron Co., Homer City, Pa. Said to empty cars containing bulk material 10 times faster and cheaper than manual m e t h o d s , the unit features an electromechanical vibrator mounted on a hook-type steel frame for apply ing to t h e side of the car. A 4 hp. motor produces 850 vibrations per min. from 230- or 460-volt, 3-phase, 60-cycle a.c. source. Ε2 • N e w pressure sensitive f o a m t a p e
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BALL MASON JAR MOUNT Special mounting fits Waring Biendor, holds quart size Ball Mason Jar. Useful for multiple samples or for excluding air from material.
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Model BEW-5 inch Stator and Rotor Assembly for mounting in Waring Cloverleaf Jars $78.50
t Model UEW-10—complete Assembly mounted in © #
new Waring Cloverleaf Jar $81.50 Model BEW-15—Assembly w i t h mount and base f o r use w i t h Ball Mason Jars $98.50
( polyurethane ) , called Tesamoll, is now being made by United Mineral & Chemical Corp., N e w York. Offering iloh'ni insulation
ocroincf a
iGIENTrFie DIVISION / m\
82
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18, 1 9 5 9
heat
onrî
Lab W a r e · · · • High-speed
: / i . V/ILL C O R P O R A T I O N ; P.0; B O X : t 2 7 , è R l G H T O N S T A T I O N Γ-'"- ROCHESTER"lc£ N.Y. ·'.'
rlllSt fnc;
sound, Tesamoll is a logical substitute for foam rubber, felt, and other cushioning or insulating materials which must b e glued or cemented in place, the company claims. Ε3
analytical
evaporator,
handling up to 12 samples at one time, is now available from Organomation Associates, Shrewsbury, Mass. A ther mostatically controlled water bath per mits samples to b e evaporated at con stant temperature, adjustable from 35° to 70° C , t h e firm says. Organoma tion claims that t h e equipment can b e
readily used by any laboratory techni cian, a n d t h e only utilities required are a d r y air (or nitrogen) source, a n d au a.c. source ΕA ρ Controlled
temperature
bath
for
demulsibility determinations of lubri cating oils comes from Research Appli ance C o . , Allison Park, Pa. Doublewalled stainless steel construction, heavy duty heating element, and o t h e r features give versatility for other appli cations, the company says. Ε5 • Laboratory pump for metering o r proportioning neutral or corrosive liquids and gases is offered b y C . H . Stoelting Co., Chicago. Control k n o b enables volume per stroke to be inde pendently controlled from zero to max imum, even when running, says Stoelting. Body is of ceramic, tempered glass, o r Teflon. Ε6 • C h r o m a t o g r a p h y o v e n , forced-air drying and claimed to dry chromatograms faster and more safely, is m a d e by National Appliance Co., Portland, Ore. I n addition to stainless steel in terior and bearing-equipped roll-out racks, the oven h a s a temperature r a n g e from room to 120° C. controlled b y hydraulic thermostat. Ε7
Processing · . . • Explosion proof mill, from Entoleter Division of Safety Industries, inc., N e w Haven, Conn., is available for plants operating with pressure systems o r processing explosive material. F e a t u r ing extra heavy walls, this special model of the Entoleter series 27 CentriMil will retain an explosive force of 1O0 p.s.i., the c o m p a n y says. Addition or a safety blow-out permits specified pressure to be harmlessly dissipated, according t o the company. Ε8 • N e w scraper, developed b y Peterson Filters and Engineering Co., Salt L a k e City, Utah, increases conventional disk filters filtering capacity by thoroughly cleaning t h e b a g . Rubber blades fold or contour t o t h e filter bag bellow, giv ing complete cake discharge, reduced bag costs, lower cake moisture, a n d greater filter capacity. Contouring a c tion remains free and will not freeze up from sludge because of sealed a n d lubricated parts. Ε9
• Cut-off g a t e for sealing bulk mate rial feed lines to hold 29 in. Hg vacuum or 25 p.s.i. comes from Beaumont Birch Co.. Philadelphia, Pa. T h e unit has a self-cleaning material return port, spring loaded hardened or stainless steel gate plate, and requires only Τ 1 Λ, in. headroom for a 6 in. gate. Ε 10 • Dust sampler from D a y Co., Min neapolis, Minn., measures d u s t p a r ticles. The Iso-Kinetic dust sampler, says the company, will accurately meas ure dust passing through dust control ducts, or being clischaiged from dust control units, such as cyclones a n d other equipment which exhaust to the at mosphere. Ε Ί1 • Volumetric piston filler, by Scientific Filter Co., New York, is available in single assembly units for -bench filling or for mounting over intermittently op erated chain conveyor for filling aero sol cans. Each A ecu-Measure unit con sists of a stainless steel piston assembh combined with an adjustable stroke air cylinder. T h e manufacturer claims no drip or overflow', and t h a t a n y small air compressor will operate? several units. Ε 12
RTlHG ST M JUlV 1959
l/EC GOES ABROAD
£C Ι Ν Γ £ * V νΦ 4rioH*V DON'T
FORGET—
— b e g i n n i n g w i t h t h e J u l y 1959 issue I N D U S T R I A L A N D E N G I N E E R I N G C H E M I S T R Y w i l l publish a n e w Inter national Edition. N o w is y o u r chance t o reach o v e r 8000 key chemical specialists, a b r o a d , in t h e c r i t i c a l area of Design, D e v e l o p m e n t and Re search. T h i s is t h e largest c i r c u l a t i o n of any i n t e r n a t i o n a l technical chemical publication. G e t y o u r slice of t h e b o o m i n g g r o w t h of t h e foreign chemical i n d u s t r y . C l o s i n g d a t e for t h e first issue of I EC—Interna tional -June 20, 1959. A n American Advertising
Chemical
Management:
Society
Publication
REINHOLD PUBLISHING CORP. 4 3 0 Park A v e n u e N e w York 2 2
• Low t e m p e r a t u r e systems, b y R e m ·
cor Products, Chicago, provide temper atures to —110° F. or lower, are com pletely self-contained, ready to plug into electrical outlet. Capacities range from 0.6 to 6.5 cu. ft., according to the firm. The refrigerated area is liquid tight and can b e used with hath or dry. Ε 13
Ëluid H a n d l i n g . · · • Steam control stop v a l v e , b y Sir \V
H. Bailey & Co. Ltd., Albion Works, Patricroft, Manchester (Oreat Britain), is designed to control steam at working pressures of up to 300 r>.s.i. and temperatures as high as 500° F. All working parts a r e of Κ Monel and stainless steel. Ε 14 • Reciprocating plunger pumps are being marketed by Walter H . Eagan Co., Inc., Philadelphia, Pa. These high pressure, low capacity, variable volume pumps are said t o deliver from 1.5 to 108 gal. per hr. of corrosive or noncorrosive liquids, and normally handle pressure to 625 p.s.i. (higher pressures with special construction). They are available in 304 and 316 stainless, Hastelloy, Carpenter 20, and other steels. Ε 15
new 1959
PRICE LIST Ϊ959
schwarz
PRICE LIS T h e N E W Schwarz Price List c o n t a i n s over 200 Schwarz manufactured biochemicals and radiochemicals. In addition to the N E W C O M P O U N D S available for the first time, N E W L O W P R I C E S are listed for m a n y of the other Schwarz Quality C o m p o u n d s . Rigid controls and assays guarantee t h a t each Schwarz C o m p o u n d meets the high specifications required for laboratory a n d manufacturing use.
^S£^***£-
Schwarz Laboratories, Inc., 230A Washington St.,Mt.Vernon.N.Y. Please send your
New 1959 Schwarz Price
Name SCHWARZ L A B O R A T O R I E S , ANC.
230 i Washington Street Mount Vernon, New York
:J
List
Title
Company. Address City
_State_
MAY
18,
1959
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8 3
You need 14 pounds of talc to equal the absorption of 1 pound of I V 1 I C R O - C E L
SYNTHETIC CnAILClUN* SILICATES
• N o m a t t e r what your absorption problems m a y be, chances are you'll find the answer in Micro-Cel—Johns-Manville's new line of syn thetic calcium silicates. Pound for pound, Micro-Cel gives you far more absorption t h a n common fillers like talc and clay . . . even outperforms products like silica gels selling for as much as 10 times MicroCeFs delivered cost of 8 c t o 10 έ per pound. Dollar for dollar, Miero-CePs high absorption also wins out over both low cost and high cost fillers. Only 28 Φ worth of Micro-Cel will convert a full gallon of liquid t o a dry free-flowing powder. As little as 12 c worth provides ultimate absorption of a gallon of water. Industry is putting these properties of MicroCel t o work in several types of applications: as an
absorptive carrier t o convert a l i q u i d t o a dry free-flowing powder; as a means of drying semi solids to desired degree; t o disperse liquids ianiformly in a dry compound; t o absorb? moisture and reduce drying costs; to control liquid viscosity u p to a paste or semi-solid; t o assure good free flow properties of deliquescent crystals o*x powders. Micro-Cel, the powder tliat flows lik:e a liefiiid is a new line of inert syntlietic calciurzn silicates produced by combining lime with diafeomaceous silica under carefully controlled conditions- In addition to high absorption, i t provides particle size as small as .02 micron and b u l k i n g action u p to a full cubic foot for every three p o u n d s . For further information!, samples a:md techni cal assistance, write to Jo»hns-ManvilXe, Box: 14, Ν . Υ. 16, Ν . Υ. In Canada, Port C r e d i t , Ontario.
one pound absorbs as much linseed oil as these weights of other f i l l e r s . . . f
I JOHNS MANVILLEJ
SJ
• P R O D U C T S !
84
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18,
1959
JOHNS-MANVI IÎLE
Nlicro-Cel is a product of the Ce lite Division
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EQUIPMENT • Thick-jointed
aluminum
pipe,
by
Reynolds Metals Co., Richmond. Va., is now available in a complete range of schedule 40 equivalent sizes (in addi tion to previously introduced schedule 80). T h e pipe is interchangeable with other standard aluminum pipe, is mar keted in 30 and 40 ft. lengths, and features walls tapered in thickness to provide extra strength at the joints while eliminating excess metal in the pipe body. Ε 16
Instruments • . · • Cold cathode vacuum g a g e , by H .
S. Martin & Son, Evanston, 111., is avail able in portable, cabinet, and rack m o u n t e d models. T h e company says this instrument measures v a c u u m in the range of 9 X 10~a through 1 X 10" 7 mm. H g with indications to 2 X 1 0 ' s mm. Ε 17
instrumented unit that impersonates *i full-scale plant, sa\s MinneapolisHon- well. The thermal plant simu lator, developed by Brown Instru ments division of M-H, Philadelphia, Pa., is said to duplicate the operating characteristics of virtually every type of nuclear power plant when linked to a reactor simulator. Ε 21 • Infrared a b s o r p t i c n cells, cheap enough to be used as disposable cells, come from Connecticut Instrument Corp., Wilton, Conn. Consisting of a single block of rock salt in which a cavity has been produced by ultra sonic machining, the new cells are available in thicknesses ranging from 1 Price is less than 10 mm. to 5 m m . $15.00 each. Ε 22
• Gas c h r o m a t o g r a p h y equipment in
modular units i> now available» from Research Specialties Co., Richmond. Calif. These units, the company claims, permit close control and variable choice of conditions at each step o f the proc ess. T h e equipment can l>e changed readily from one system of j?as chroma tography to another b y replacing only one or two modules. Research Special ties says. Thermal conductivity and ionization detectors can be used. Ε 2 3
• . ι
Further useful informa+ion on keyed Equipment items mentioned is readily available . . .
!
Use handy coupon on page 8& t
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:
j I I I 1
J
M a y 1 8, 1 959 • Ultrasensitive electronic control for
laboratory processes, from H. S. Martin & Son, Evanston, 111., detects m i n u t e capacity changes such as the rise or fall of manometers, thermometers, barom eters, floats, or other precise mechanical movements. Operation is simple a n d installation generally consists of only one clip snapped around the indicating device, Martin claims. Ε1 8 • N e u t r o n detection foils, developed 1 by Aerojet-General Nucleonics, San ! Ramon, Calif., make possible «repro ducible spectral determinations. Aero jet says these standard analytical foils can b e used to accurately correlate * single reactor system studies or similar studies using various reactors. Ε 19
Readers' Information Service Use this h a n d y self mailer to o b t a i n further information or literature. Simply mark, clip coupon, fold, and mail Every week C&.EN's editors survey a large volume of valuable scien tific, technical, and business information issued in the form of product announcements, booklets, catafocjs, d a t a sheets, e\c. This moteria! is digested and presented in several departments. For your conven ience this coupon is provided to facilitate requests for further information on these items as well as on products and services mentioned i n advertisements. Name
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• High-speed spectrograph, devel oped b y Jarrell-Ash Co., Newtonville, Mass., offers high optical speed (f6.3) and good dispersion, resolution, a n d spectral coverage in the ultraviolet a n d visible regions. This instrument h a s been used to record spectra from tran sient shock tube-plasma p h e n o m e n a lasting only 4 to 5 microseconds, ac cording to the manufacturer. It is especially applicable where the light source is weak or is of normal brilliance but fleeting, and may be used with high speed drum cameras to extend its response to short duration events, Jar rell-Ash says. Ε 2Ο • Atomic p o w e r p l a n t design and o p erational problems can be solved by a n
•
CUP C O U P O N — F o l d A l o n g This L i n e — F a s t e n (Staple, T a p e , Glue)
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To: Readers' Information Service Chemical and Engineering N e w s 4 3 0 Park Avenue N e w York 2 2 , Ν. Υ. FASTEN HERE ONLY }
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MAY
18,
1959
C&EN
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