THIS IS IT IT PULLS ITSELF OUT-IF STUCK, THIS SAFE LAB TEFLON S T O P P E R ^ . .

SAFE LAB Inc ^ ^ i r ^ (6191448 4100 I 10020 Prospect Ave A15Santee CA 92071 I

CIRCLE 20 ON READER SERVICE CARD

CESIUM CESIUM

• metal • salts

(99 to 99.999 pet. pure): carbonate carboxylates halides hydroxide nitrate produced by: CHEMETALL ΛΡ

^ 3 Gesellschalt fur chemscfi technische Verfahren mOh

Section Fine Chemicals P.O.Box 37 24 D 6000 Frankfurt a.M. 1 Western Germany Telephone (0611) 159-0 Telex 4170090 cm d

A subsidiary of Metallgesellschaft AG United States Representatives: Henley -I- Co., Inc. 750, Third Avenue New York, NY. 10017 Telephone: (Area 212) 986-5544 Cable Adress: "Henleysale" TXXNo. 710-581-6572 RCA232210ITT424671

CIRCLE 10 ON READER SERVICE CARD

NEW 4-lTOR SIZE Β JACKET SAFETY BOTTLE COVER

* M9<«WMM.

\

* NEW SAFETY BOTTLE COVER The B-Jacket Safety Bottle Cover has several advantages over other available types of protection for glass bottles. For one, its com­pactness makes it more conve­nient to use and easier to pour than bulky bucket-type or wire-handled carriers. Its size also al­lows normal shelf use and storage, and can accommodate one-gallon bottles. Equally important, the reusable B-Jacket Safety Bottle Cover offers improved protection and is more economical than plas­tic-coated bottles.

Burdfck ê Jackson Laboratories, Inc. 1953 South Harvey Street

Muskegon, Ml 49442

CIRCLE 9 ON READER SERVICE CARD

PRECISION T SLOW FLOW I PUMP ^

high ^ ^ ^ ^^Ê pressure syringe pump is ideal for high pres­sure reactor feed; HPLC with electrochemical or other flow-sensitive detectors; and micro­column LC.

The Model 314 gives you un­excelled slow-flow precision at rates from 8 / i l /h r to 200 ml/hr and operating pressures to 200 kg / cm2 (2850 psi). An optional Nitronic SO cylinder is available for highly corrosive solutions.

It's the only pump of its kind. Send now for an I SCO catalog to learn all about it. Or if you're in a hurry, phone | toll free [800)228-4250. ISCO, P.O. Box 5347, Lincoln, NE 68505. CIRCLE 51 ON READER SERVICE CARD

M Ξ55

RBS-35: soaks labware sparkling dean RBS-35 Concentrate combines

powerful detergent action with an alkaline pH to remove even the most stubborn residues from glass, porcelain and plastic surfaces.

A recommended 2% working solution costs only about 19$ per quart.

See for yourself! Call 800-435-2960 or 815-968-0747 ext. 311 for a free sample, or write Pierce Chemical Company P.O. Box 117 Rockford, IL U.S.A. 61105

CIRCLE 47 ON READER SERVICE CARD

RESEARCH CHEMICALS CATALOG

1 · ·*. " ^:Vv&

1 . 'j^^^^^^^^flB^^&fcuraSlii 1 *J ̂ ^^^^^^BB*J* JÎJ^J^BE^B

I 1

1 "̂ t^^^MBfl%ll^CT™'

1 * ; ' ' ^ ^ V T a E i i rWr*SSÊmÉL

Ι ·χ-^ΒΙ<Ιΐ88Β&ΚΒ Ι j^fflSpeâËty

Our new general catalog, providing the world's most comprehensive offering of organofluorine, silane and terpene compounds, is now ready for distribution. This catalog lists physical properties and prices and is available FREE. Write or call for your copy today.

2^ P.O. BOX 1466

G A I N E S V I L L E , F L O R I D A 32609 (904) 376-8246

CIRCLE 48 ON READER SERVICE CARD

Specialty Γ-:·-· f " t .

=̂ =-H