FISH-SCHURMAN CORPORATION - Analytical Chemistry (ACS


FISH-SCHURMAN CORPORATION - Analytical Chemistry (ACS...

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COORS TUBES U.S.A. COORS VOLCANUS Combustion Tubes are scientifically designed for high temperature combustion service. They may be used to 2900°F.

• Available in sizes 1"OD to 1%"OD. Lengths to 36 in.-plain and con­ stricted end. • Refer to our 1956 Catalog to take advantage of the New Packaging Program offering Quantity Savings

COORS PORCELAIN COMPANY GOLDEN. COLORADO

MANUFACTURERS' LITERATURE

Noble Metals. Stock list presents company line of platinum, iridium, rhodium, ruthenium, palladium, and gold salts and solutions. J. Bishop & Co. Platinum Works. 30 Viscometer. Data sheet discusses features, applications, and operation of viscometer. Precision Scientific Co. {Datasheet 10911). 31 Manometers. Bulletin of 4 pages de­ scribes four types of manometers and specialized instruments in company's line. Meriam Instrument Co. (Bull. G-10). 32 Chemical Specialties. Latest Cat­ alog lists over 1500 chemical specialties for which analyses may be obtained. Chemical Specialties Research Labora­ tories. 33

LABORATORY SUPPLY DEALER

For further information, circle number SO A-1 on Readers' Service Card, page 69 A

Viscosity directly in centipoises . . . HOEPPLER VISCOSIMETER PRECISION MODEL The Hoeppler Viscosimeter pro­ vides a fast, accurate method of de­ termining the viscosity of eases, liquids, oils, plastics, syrups, viscous tars and dark liquids. From 0°C. to 100°C. Direct readings in centi­ poises (or centistokes). From 0.01 to 1,000,000 centipoises. Accuracy 0.1% to 0 . 5 % . Small sample (30cc) required. Results consistent and reproducible. Price, $350. Write for Bulletin HV-303.

Reagents. Chart in booklet form shows compatibility or noncompatibility of reagents to thermoplastic materials. American Agile Corp. 35 Proportional Counters. Two-page bulletin compares six types of pro­ portional counting systems. Nuclear Measurements Corp. 36

FALLING BALL PRINCIPLE The falling time of the ball multiplied by other given factors shows absolute viscosity in centipoises.

UBBELOHDE Viscosimeter on the principle of the suspended level A capillary-type viscosimeter for determining the kinematic viscosity of any true viscous liquid» such as petroleum products or lubricants. See American Society for Testing Materials, A.S.T.M. designation D 445-53T. Measures viscosity with an error not greater than ± 0 . 1 % , when used at efflux times of 80-1000 seconds. The smallest listed capillary is used for light fuel oil or kerosene, the others for lubricating oils. The temperature of the bath should be controlled within^±0.02°F. In all capillary sizes as called for by the A.S.T.M.—calibrated or uncalibrated. Uncalibrated capillary, $18. Calibrated, $37.50 Metal frame tofitcapillary, $6. Write for Bulletin UV349. Order direct or from leading laboratory supply dealers. FISH-SCHURMAN CORPORATION 72 Portman Road, New Rochelle, Ν. Υ.

Fish-Schurman For further information, circle number 80 A-2 on Readers' Service Card, page 69 A

80 A

Platinum Catalysts. Twenty-page review outlines general advantages and applications of platinum catalysts. Baker & Co., Inc. 34

Essential Oils, Aromatic Chemicals. Latest wholesale price list catalog of company line of essential oils and aromatic chemicals. Fritzsche Brothers, Inc. 37 Electronic Parts. New 1956 catalog has 260 pages of electronic parts, tubes, equipment, and accessories. Includes 64 pages of Hi-Fi equipment. Newark Electric Co. 38 Spectrophotometer. Four-page bro­ chure describes new ultraviolet spectro­ photometer which features a double monochromator; specifications in­ cluded. Perkin-Elmer Corp. 39 Computing and Analysis Facility. Eight-page bulletin describes facilities and scope of new research lab service group. Cook Electric Co. (Bull. R-16). 40 For further information, see coupon on page 69 A ANALYTICAL

CHEMISTRY