mercury vapor detector
NEW CHEMICALS material is widely used in the synthesis of drugs, dyes, a n d perfumes, t h e company says. 16
Measures toxic mercury vapors in plant or lab atmospheres. Tells ^f*'""" • IHJ-——
tL.
instantly when
a haz ard
' ' '£ fô^nik *»..
.
Μ?:..*^—·*&Μι*ίΒΛ W-r"
x,
^WHIHIIIIII
exists.
Ρ
These a r e p o r t a b l e , ultra-violet photometers, c a l i b r a t e d in mercury concentrations f o r quick indication. The toxic limit is a full-scale r e a d i n g on the high sensitivity scale o f M o d e ! 2 3 , illustrated. W e i g h t : 7 pounds; size 1 3 χ BVz χ 4'/2 inches. Models a v a i l a b l e f o r v a r y i n g ranges—all m o d e r a t e l y p r i c e d , and d e p e n d a b l e . A b i b l i o g r a p h y o n the mercury v a p o r h a z a r d will b e sent on request, with literature on the different models o f the Kruger Mercury V a p o r M e t e r .
HAROLD BOX 1 6 4
KRUGER
INSTRUMENTS SAN GABRIEL, CALIF.
For further information, circle number GO A-1 on Readsrs' Service Card, page 51 A
here's a
U-TURN you can make ANYTIME... ANYWHERE
A l p h a Sulfo A l k y l Acids Production of t w o sulfonic acids derived from palmitic a n d stearic acids is announced b y t h e Chemical Division of Armour a n d C o m p a n y . T h e alpha sulfo-stearic a n d alpha-sulfo-palmitic acids a r e available in pilot p l a n t q u a n tities. According t o Armour, t h e sulfonated acids contain a strongly ionized sulfonic acid grouping a n d one carboxyl group, m a k i n g possible a wide variety of normal a n d mixed derivatives such a s alkali salts, amides, esters, a n d alkyl a m m o n i u m salts. These chemicals or their derivatives appear t o have promis ing application in t h e fields of deter gents, greases, ore flotation, b u t a d i e n e styrene polymerization, fuel or lubri cating oils, a n d chemical intermediates, the c o m p a n y says. 17
Sealing Compound N e w liquid sealing compound by Hoke, I n c . , is said t o b e completely inert t o all k n o w n chemicals except molten alkali metals, fluorine a t high temperatures, and certain complex halo gen compounds. T h e material was de veloped for use as a t h r e a d sealant and t o eliminate galling of pipe t h r e a d s ; t h e company says i t can also b e used t o impregnate porous bearings, t o provide a corrosion-resistant surface t o protect equipment, a n d t o impregnate asbestos fabric for gasket a n d packing uses. Designated Slic-Seal, i t is identified as a Teflon-based dispersion. 18
NAGON FLEXIBLE lINtiASTIC T U B I N G A n y t i m e you need good plastic t u b i n g u s e N A L G O N for: PERFECT
FLEXIBILITY
COMPLETE
NEUTRALITY
HIGH CHEMICAL RESISTANCE ABSOLUTE SAFETY EXCELLENT STABILITY TRUE
DIMENSIONAL
TRANSPARENCY
RESISTANCE TO AGE-YELLOWING . . . a n d i t ' s ECONOMICAL, t o o ! F o r in
stance t h e Vi" I D with 1/16" wall sells for less t h a n 15ψ p e r foot. T h e r e a r e m a n y higher priced plastic tubings, b u t y o u will n o t find a b e t t e r one, a t a n y price, t h a n NALGON.
The
NALGE CO., Inc.
At Laboratory Supply Dealers Everywhere
R O C H E S T E R 2, N E W Y O R K For further information, circle number 60 A-2 on Readers' Service Card, page 51 A
60 A
N e w Vegetable Fatty Acid Announced A n e w hydrogenated fatty acid of vegetable origin is announced b y Swift's Industrial Oil D e p a r t m e n t . Developed for lubricating greases t h e new product is said t o h a v e a high melting point and a high stearic acid content. T h e com p a n y has reported t h e following specifi cations for the p r o d u c t : Titer Iodine Value Acid Value Saponification Value Lovibond Color (5V 4 Col.)
61-64° C . 3 Max. 194-204 195-205 1 5 Y / 1 . 5 R Max.
T h e new fatty acid is shipped in 50 pound net weight lots. 19 For further information, see coupon on page 51 A ANALYTICAL
CHEMISTRY
