A Dash of proline to induce chirality Christian Perreault Literature Meeting February 6 th, 2006.
MANUFACTURERS' LITERATURE
1
26 A ANALYTICAL CHEMISTRY external to the ionization chamber, there is no problem in- volved with outgassing the magnets or removing stray iron particles; and, finally, the tube is automatically self-cleaning because it rids itself of deposited film when operated at the higher pressures in the lowest sensitivity range. 18 Vitamin Ε Ester Heretofore, pure tocopheryl esters have been available commercially in racemic synthetic mixtures but never in pure d-form. Distillation Products Industries has taken vitamin production one step further with its latest product: pure, crystallized d-a-tocopheryl acetate, an esterified form of vitamin E. Rat antisterility bioassays show that the new product is a very potent vitamin E. It is called Type 6-100 and is pre- pared from vegetable oil as a fine crystalline material which melts to a light yellow oil at room temperature. 19 Mercury Receivers Chemiquip Co. has designed a mercury trap which may be installed at both ends of a differential manometer and at the open end of absolute manometers to catch mercury blown from the manometer at normal operating pressures. The capacity of the moly steel Mercureceiver is 110 ml.; that of the stainless steel unit is 125 ml. Each is made with threaded end fittings and porous stainless steel membranes, the flow capacity of which are adjusted to control mercury at a rate proportional to the pressure differential across the porous element. The container may be equipped with membranes having maximum pore diameters from 0.005 to 0.00035 in. The 0.0006-in. pore diameter membrane is capable of pre- venting passage of mercury at pressures under 17 lb./sq. in. When mercury is present in the container, the manometer will not return to zero, preventing incorrect readings. 20 MANUFACTURERS' LITERATURE Vegetable Oleic Acid. A 5-page bulletin discusses the origin, characteristics, and applications of a new all-vegetable oleic acid which has all the properties of oleic acid. Included with the bulletin are charts illustrating its oxidation stability as compared to ordinary grades of oleic acid and the solubility of both its potassium and sodium soaps. Emery Industries, Inc. (Bull. 67). 21 Reticles. Pamphlet outlines information concerning pre- cision reticles with lines as fine as 1 micron—with a spacing between lines as close as 5 microns—which are free of dis- persion or distortion of line. U. S. Testing Co., Inc. - 22 Radioactivity Glossary. A compilation of 58 definitions for terms used in the radioactivity measurement field. Ra- diation Counter Laboratories, Inc. 23 Surface Tensiometer. Illustrated 3-page leaflet containing information on the Sur-Ten Meter, a device for checking surface tension in process control of electroplating, dyeing, or other processes where this variable is important. Joseph B. Kushner. 24 Protective Gloves. Specifications for numerous types of iiquid-tight neoprene, neoprene-coated, and vinyl-coated industrial gloves are given in this 12-page illustrated catalog. Performance data sheet for resistance of various gloves to different chemicals is included. Pioneer Rubber Co. 25 Electric Instruments. A 4-page catalog and price list con- taining illustrations and condensed specifications of electrical test instruments and panel meters, including a new oscillo- scope calibrator. Simpson Electric Co. 26 Research Instrumentation. Describes (24 pages) unitized optical and electronic components capable of dealing with any research problem involving monochromatic light. Items covered include monochromators, sources, source focussing assemblies, detectors, amplifiers, mirrors, absorption cells, accessories. Perkin-Elmer Corp. (Bull. 103). 17 Laboratory Furniture. Sectional laboratory furniture and many laboratory accessory items are illustrated and described in detail in this 6-page bulletin. Labline, Inc. 28 Ball Bearings. Extensive specifications on more than 120 different types and sizes of miniature ball bearings are con- tained in this 4-page catalog. Miniature Precision Bearings. (Cat. 6ÊB). 29 Sodium Carbonate. Revised edition of bulletin describing properties, sampling and analysis, loading and unloading, handling, and storage of sodium carbonate. This 64-page bulletin contains both new material and revisions in addition to the charts and data that were included in the previous editions. Solvay Sales Div., Allied Chemical & Dye Corp: (Bull. 5). 30 Thermocouples. Presents the complete company line of thermocouple assemblies and parts. The 44-page bulletin lists the accuracy limits of couples, temperature limitations of thermocouple and protecting tube materials, and the recommended protecting tube and well materials for general applications. Leeds & Northrup Co. (Cat. EN-SB). 31 Metallic Stearates. A series of three data sheets on zinc stéarate as a lubricant in powder metallurgy, metallic stéa- rates in plastics, and calcium and aluminum stéarates as pigment-suspending agents in flat wall paint. American Cyanamid Co. 32 Translations on Pharmaceuticals. Lists, describes briefly, and gives the price for about 35 translations of patent appli- cations from the files of German pharmaceutical manufac- turers. Research Information Service (Bull. 67). 33 Vacuum Drying Equipment. A 24-page catalog describes methods and equipment for vacuum drying. Methods cov- ered include vacuum shelf, rotary vacuum, rotating vacuum, and vacuum freeze drying. F. J. Stokes Machine Co. (Cat. 720). 34 Test Cabinets. A series of 4-page bulletins give operating temperature ranges, test space and over-all dimensions, and utilities required for temperature, altitude, and relative humidity test cabinets. Bowser, Inc. (H-, L-, S-, and T- Series). 35 D.C. Power Supply. A 4-page bulletin giving photographs, circuit diagrams, outline dimensions, ratings, and descriptive data on the Varicell which gives a d.c. output from 0 to 35 v. at 15 amp. from 85- to 135-v., 60-cycle, single phase current. The Superior Electric Co. (Bull. V1051). 36 Glucuronolactone. A 20-page booklet surveys the current literature and gives the properties of glucuronolactone. A 31-entry bibliography is included. Corn Products Refining Co. 37 Infrared Spectrometer. Extensive details on construction, performance, and accessories are given in a 32-page bulletin on a mobile, double pass instrument. Optical path and resolution advantages of the double pass sytem (radiation reflected four times through the prism) is explained. Perkin- Elmer Corp. (Bull. 102). 38 Aldehydes. Specifications and suggested uses are given for acetaldehyde, n-butyraldehyde, crotonaldehyde, and iso- butyraldehyde. Tennessee Eastman Co. 39
Transcript of MANUFACTURERS' LITERATURE
26 A A N A L Y T I C A L C H E M I S T R Y
external to the ionization chamber, there is no problem involved with outgassing the magnets or removing stray iron particles; and, finally, the tube is automatically self-cleaning because it rids itself of deposited film when operated at the higher pressures in the lowest sensitivity range. 18
Vitamin Ε Ester
Heretofore, pure tocopheryl esters have been available commercially in racemic synthetic mixtures but never in pure d-form. Distillation Products Industries has taken vitamin production one step further with its latest product: pure, crystallized d-a-tocopheryl acetate, an esterified form of vitamin E.
Rat antisterility bioassays show that the new product is a very potent vitamin E. It is called Type 6-100 and is prepared from vegetable oil as a fine crystalline material which melts to a light yellow oil at room temperature. 19
Mercury Receivers
Chemiquip Co. has designed a mercury trap which may be installed at both ends of a differential manometer and at the open end of absolute manometers to catch mercury blown from the manometer at normal operating pressures. The capacity of the moly steel Mercureceiver is 110 ml.; that of the stainless steel unit is 125 ml. Each is made with threaded end fittings and porous stainless steel membranes, the flow capacity of which are adjusted to control mercury at a rate proportional to the pressure differential across the porous element. The container may be equipped with membranes having maximum pore diameters from 0.005 to 0.00035 in. The 0.0006-in. pore diameter membrane is capable of preventing passage of mercury at pressures under 17 lb./sq. in. When mercury is present in the container, the manometer will not return to zero, preventing incorrect readings. 20
M A N U F A C T U R E R S ' LITERATURE
Vegetable Oleic Acid. A 5-page bulletin discusses the origin, characteristics, and applications of a new all-vegetable oleic acid which has all the properties of oleic acid. Included with the bulletin are charts illustrating its oxidation stability as compared to ordinary grades of oleic acid and the solubility of both its potassium and sodium soaps. Emery Industries, Inc. (Bull. 67). 21
Reticles. Pamphlet outlines information concerning precision reticles with lines as fine as 1 micron—with a spacing between lines as close as 5 microns—which are free of dispersion or distortion of line. U. S. Testing Co., Inc. - 22
Radioactivity Glossary. A compilation of 58 definitions for terms used in the radioactivity measurement field. Radiation Counter Laboratories, Inc. 23 Surface Tensiometer. Illustrated 3-page leaflet containing information on the Sur-Ten Meter, a device for checking surface tension in process control of electroplating, dyeing, or other processes where this variable is important. Joseph B. Kushner. 24
Protective Gloves. Specifications for numerous types of iiquid-tight neoprene, neoprene-coated, and vinyl-coated industrial gloves are given in this 12-page illustrated catalog. Performance data sheet for resistance of various gloves to different chemicals is included. Pioneer Rubber Co. 25
Electric Instruments. A 4-page catalog and price list containing illustrations and condensed specifications of electrical
test instruments and panel meters, including a new oscilloscope calibrator. Simpson Electric Co. 26
Research Instrumentation. Describes (24 pages) unitized optical and electronic components capable of dealing with any research problem involving monochromatic light. Items covered include monochromators, sources, source focussing assemblies, detectors, amplifiers, mirrors, absorption cells, accessories. Perkin-Elmer Corp. (Bull. 103). 17
Laboratory Furniture. Sectional laboratory furniture and many laboratory accessory items are illustrated and described in detail in this 6-page bulletin. Labline, Inc. 28
Ball Bearings. Extensive specifications on more than 120 different types and sizes of miniature ball bearings are contained in this 4-page catalog. Miniature Precision Bearings. (Cat. 6ÊB). 29
Sodium Carbonate. Revised edition of bulletin describing properties, sampling and analysis, loading and unloading, handling, and storage of sodium carbonate. This 64-page bulletin contains both new material and revisions in addition to the charts and data that were included in the previous editions. Solvay Sales Div., Allied Chemical & Dye Corp: (Bull. 5). 30
Thermocouples. Presents the complete company line of thermocouple assemblies and parts. The 44-page bulletin lists the accuracy limits of couples, temperature limitations of thermocouple and protecting tube materials, and the recommended protecting tube and well materials for general applications. Leeds & Northrup Co. (Cat. EN-SB). 31
Metallic Stearates. A series of three data sheets on zinc stéarate as a lubricant in powder metallurgy, metallic stéarates in plastics, and calcium and aluminum stéarates as pigment-suspending agents in flat wall paint. American Cyanamid Co. 32
Translations on Pharmaceuticals. Lists, describes briefly, and gives the price for about 35 translations of patent applications from the files of German pharmaceutical manufacturers. Research Information Service (Bull. 67). 33
Vacuum Drying Equipment. A 24-page catalog describes methods and equipment for vacuum drying. Methods covered include vacuum shelf, rotary vacuum, rotating vacuum, and vacuum freeze drying. F. J. Stokes Machine Co. (Cat. 720). 34
Test Cabinets. A series of 4-page bulletins give operating temperature ranges, test space and over-all dimensions, and utilities required for temperature, altitude, and relative humidity test cabinets. Bowser, Inc. (H-, L-, S-, and T-Series). 35
D.C. Power Supply. A 4-page bulletin giving photographs, circuit diagrams, outline dimensions, ratings, and descriptive data on the Varicell which gives a d.c. output from 0 to 35 v. at 15 amp. from 85- to 135-v., 60-cycle, single phase current. The Superior Electric Co. (Bull. V1051). 36
Glucuronolactone. A 20-page booklet surveys the current literature and gives the properties of glucuronolactone. A 31-entry bibliography is included. Corn Products Refining Co. 37
Infrared Spectrometer. Extensive details on construction, performance, and accessories are given in a 32-page bulletin on a mobile, double pass instrument. Optical path and resolution advantages of the double pass sytem (radiation reflected four times through the prism) is explained. Perkin-Elmer Corp. (Bull. 102). 38
Aldehydes. Specifications and suggested uses are given for acetaldehyde, n-butyraldehyde, crotonaldehyde, and iso-butyraldehyde. Tennessee Eastman Co. 39
