HANOVIA Chemical & Mfg. Co

up to 6amperes. Lower Voltages from a divider. @=t. LABORATORY SUPPLIES . C^PANY INC. 76 Varick Street, New York 13, N. Y.. Telephone: CAnal 6-6504...
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Eliminates all storage batteries and storage battery accessories for SPECTROPHOTOMETERS (especially the Beckman Model DU) and GENERAL LABORATORY APPLICATIONS * 5 volts to 10 volts d c up to 6 amperes Lower Voltages from a divider

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A compact, powerful lamp proven excellent for use in all phases of ultraviolet photography, i.e. "reflected ultraviolet procedure" and the "fluo­ rescence method". I t is highly satisfactory for illumination of optical apertures, for micro­ scopy and absorption spectra studies. The utility model lamp is a laboratory size ultraviolet light source suitable for preliminary determinations of the potential benefits of pho­ tochemical reactions in your own processes.

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VOUlZFORTHÊASMe! 11 ι " I l S W r i t e for NYlAB's booklet U.f

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A most valuable tool in photochemistry, ultra­ violet radiation is one of the most useful agents in Photosensitization. Reactions of many types, including synthesis, decomposition, hydrolysis, hydrogénation, oxidation, reduction, polymerization, bleaching, precipitation, isomeric change, and halogenation, result from exposure to actinic radiation. YOURS O N REQUEST: Valuable, informative 16-page brochure, P H O T O S E N S I T I Z A T I O N , a review, details facts on Photochlorination, Oxidation, Hydrolysis and Hydrogénation, Polymerization, Bromination, Isomeric Transformation, Decomposition, etc. Each subject is fully described in light of latest proven techniques and results with complete bibliography included. Write today for your copy without obligation.

NEW YORK Laboratory Supply

COMPANY INC. LABORATORY SUPPLIES .

7b

Vorick Street, N e w York Telephone:

CAnal

HANOVIA Chemical & Mfg. Co.

1 3 , Ν. Υ.

6-6504 D E P T . AC-10, N E W A R K 5, N . J .

Circle No. 41 A-1 an Readers' Service Card, page 57 A

V O L U M E 2 6, NO. 10, O C T O B E R

1954

Circle No. 41 A-2 on Readers' Service Card, page 57 A

41 A