HYDROQUINONE
INDUSTRIAL
LITERATURE
Coagulant Aids. Outlines test pro cedures for chlorinating, timing of cycle, and settling rate estimating for determin ing the best use of coagulant aids in spe cific water treatment applications. Bul
environments such as vibration, accelera tion, shock, velocity, tension, pressure, and production a n d process flow.
letin
Essential Oils. Presents prices, uses, and short descriptions of essential oils, aromatic chemicals and specialties, con centrated citrus oils, spray-dried products, and certified food colors available from
12-5.
CALGON C O R P .
W E S T O N - B O O N S H A F T & FUCHS DIVISION, W E S T O N INSTRUMENTS, I N C . L 5
L 1
Dehydrators. Cover complete line of electric-heat reactivated and heaterless, desiccant compressed gas dehydrators. Bulletins B-30 and C-30. INC.
L 2 Digital Data Recording. Details op eration and use of DDR-2, a complete digital data recording system for conver sion of analytical instrument output to a format suitable for digital computer entry.
p-C6H4(OH)2 W h a t e v e r Y o u Call It. . . CARUShasit! All Grades . . . Prompt Delivery. For use as an antioxidant, inhibitor, and in the production of dyes, chemical intermediates
K A H X AND C O . ,
Bulletin
DDR-2.
PERKIX-ELMER
CORP. L 3
Electromagnets. Contains operational data on a series of medium-size electro magnets for high-precision laboratory ex periments.
BRUKER SCIENTIFIC, I N C .
L 4
Environmental Equipment. Provides data on equipment and systems designed to produce, control, and analyze dynamic
the
firm.
DODGE & O L C O T T , I N C .
L 6
Gas Chromatography. Depicts gas chromatograph systems available from Packard with suggested applications for each type. Bulletin 1058. PACKARD I N STRUMENT Co., I N C .
L 7
GC Accessories. Describes the stand ard line of F & M gas chromatograph columns and column accessories. F & M SCIENTIFIC C O R P .
L 8
Hydroxyl-Terminated Resins. Gives research data and suggested uses of hydroxyl-terminated Poly B-D liquid resins in urethane systems. Bulletin 505. SIN CLAIR PETROCHEMICALS, I N C .
L 9
and photographic
products. Now available in new easy handling Hydroquinone bags or in drums. For prices and full information write for Bulletin 200D.
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fYPICAL ULTRAVIOLET SPECTRA FOR MERCK S PECTROPHOTOMETRIC SOLVENTS
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You can have complete confidence in the performance of Merck Spectrophotometry Solvents, since the spectra shown are actual, not merely theoretical. As always, you can continue to look to M erck reagents for dependable reproducibility. To all present and potential users of spectrophotometers, Merck has a free "Spectrosolvents Kit" waiting for you at your local distributor. So pay him a visit soon while the supply lasts.
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MERCK LABORATORY CHEMICALS Distributed by QUINTON COMPANY, Division of Merck & Co., Inc. Rahway, N.J. C& Ε Ν
59
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ELEC 1
Situations Wanted
INSULATIONS DIVISION, J O H N S - M A N V I L L E
PROMISING CORN STARCH.DERIVATIVE CONSfU it Λ niNITROPHENOXY) SEEKS MATE. WA S" 0N° FORCES WITH I M « » A R S O N S SEEKING NEW PROPER.'ES FOR NEW PRODUCTS. Contact. | ^ Rir"
CHEMICAL C O .
'
Corn R i m i n g Dwis-on
St. Lou.s, Mo. 6 3 . 0 5
2,4-Dinitrophenoxy starch might be just the building block that you need to fill that imaginative gap between good idea and great new product. It's a fine-granule modified corn starch, yellow in color, with a moisture content of 10-12%. Its pH is 5-6 (5% suspension in water). Viscosity of cooked pastes of this starch derivative will vary depending upon the type of starch treated and degree of reaction. Gelatinization temperature also varies depending upon the degree of substitution obtained.
CH2OH
ML
XT J\OH
H/
We believe that the formula, above, represents the probable structure of the compound on the straight chain component of starch. The structure on the branched chain would be analogous. Here are a few observations on the chemistry and properties of our new protege: The simple aryl halides are very unreactive with starch . . . no observable reaction takes place under conditions that ordinarily bring about displacement reactions with the alkyl halides. However, if a nitro group M A Y 17, 1 9 6 5
or other meta-direeting group is in a position ortho- or parato the halogen atom, the reactivity is increased greatly— increased even more when nitro groups are present in the 2,4positions, reaching maximum with three nitro groups in the 2,4,6positions. These last two compounds are capable of displacement reactions with starch to form the corresponding polynitroaryl derivatives . . . the nitro groups present in this starch derivative should undergo many of the reduction reactions typical for aromatic nitro compounds . . . a striking property of polynitro aromatic compounds is their ability to form molecular complexes with other aromatic compounds . . . the intense color of many of these complexes approaches that of the dyes . . . aromatic nitro hydrocarbons are practically insoluble in water and the substituted starches have hydrophobic properties . . . 2,4-dinitrophenoxy starch strongly absorbs ultraviolet light just beyond the visible due to presence of the nitrobenzene group. If you have a possible application for 2,4-dinitrophenoxy starch please write us for more information and sample—
Discusses the economic and techni cal factors to be considered in build ing liquefied * * >r . naturalgas plants. In i i c l u d e s charts which define the -.. wv1«il.HM,sui*AL..ASP1xs.s e c o n o m i c fac,., r** t«4v...... t ο r s, a n d d i ag r a m s showing various purification cycles. S e c t i o n on Air Liquide's c a p a bilities a n d ex perience is included. Features ques tionnaire for evaluating liquefied nat ural gas requirements. AMERICAN
AIR LIQUIDE, INC.
Molding Resin. uses, and fabrication X-tal molding resin machines and for
Corn Refining Division P. O. Box 11255 St. Louis, Mo. 63105
L 12
Describes features, methods of Spencer for screw injection plunger machines.
SPENCER C H E M I C A L DIVISION, G U L F O I L CORP. L 13
Plastic Coatings. Described various methods, such as fluidized-bed, dip, dip molding, solid molding, airless spray, and sheet lining techniques for applying a wide range of plastic coatings. Bulletin 94.
F A N N E R M F G . Co.
L 14
Pressure Vessels. Covers construction, installation, operation, maintenance, and application of pressure vessels to protect piping systems from damage. Catalog MA-11. FULTON SYLPHON ROBERTSHAW CONTROLS C o .
DIVISION, L 15
Resin Selection. Charts handling char acteristics, and physical, thermal, and electrical properties for 30 basic resin sys tems.
ISOCHEM RESINS C O .
L 16
Service Pumps. Illustrates and de scribes vertical industrial service pumps for liquid transfer from short settings in both industrial and process pumping ap plications. Bulletin B-505. PEERLESS P U M P , FMC
CORP.
L 17
TFE Design. Evaluates and explains use of TFE-fluorocarbon resins in the design and fabrication of parts using filled or unfilled resins. SPARTA M F G . Co. L 18 Vapor-Spray Coating. Summarizes in formation on various photo-resist coating materials and how they can be applied by vapor-sprav coating. Bulletin 2. ZICON CORP.
ANHEUSER-BUSCH, Inc.
L 11
Liquefied Natural Gas Plants
ANHEUSER-BUSCH, .nc. n n
C&EN
L 10 Joining Methods. Details various methods of joining polycarbonate parts to each other, or to other plastic or metal parts, by mechanical fastening, solvent or adhesive bonding procedures, heat sealing, and welding. Bulletin 85-MB. M O B AY
'. 2 ν Γ· ·
P.O. Box Π 2 5 5
60
Insulation. Describes refractory fiber insulation in a wide variety of materials and shapes for service temperatures u p to 2300° F . Bulletin IN-579A. INDUSTRIAL
'
L 19
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