Product Capsules

Lists hundreds of special pieces of glass­ware. Corning Glass Works, 69-12 Crystal St., Corning, Ν . Υ. 7 3 Α

G l a s s w a r e . The following are some physical properties of the new "Kimax" borosilicate glassware line : strain point, 515° C ; annealing point, 555° C ; softening point, 820° C ; density, 2.23; visible light transmission a t 2 mm. thickness, 92%. Complete information available. Kimble Glass Co., Dept . AC 12, Toledo 1, Ohio. 3rd cover

Hot Plates . Bulletin available on the "Pyrodisc" portable hot plate. Diam­eter: 8". Power ra t ing: 660 wat ts . Power service: 115 volts, 50/60 cycle. Laboratory Equipment Div., Lindberg Engineering Co., 2474 W. Hubbard St., Chicago 12, 111. 75A-3

Isolation Units. 8-page bulletin avail­able. Describes 7 sq. ft. laboratory for hazardous and impurity-sensitive opera­tions. Fisher Scientific Co., 100 Fisher Bldg., Pi t tsburgh 19, Pa . 8 9 A

Kjeldahl Apparatus . Booklet avail­able containing photos and complete description of all Labconco Kjeldahl apparatus . Line includes s tandard units, hooded units, and variable heat controls. Laboratory Construction Co.,

8811 Prospect Ave., Kansas City, Mo. 96A

Laboratory Apparatus . New Will Catalog 7 available. Contains dozens of comparison charts, reference tables, buying hints, latest prices, newest equip­ment. T h u m b indexed. Will Corp., N . Y . 52, Ν . Υ. 7 1 A

Laboratory Apparatus . Circle in­dicated numbers for complete informa­tion of following: thermometer reading lens, 92A-2; pellet press, 92A-3; turbidimeters, 92A-4. Par r Ins t rument Co., Moline, 111. 9 2 A - 2 , 3 , 4

Laboratory Equipment. 180-page catalog available. Contains informa­tion on company's complete line of modern laboratory equipment. Meta-lab Equipment Co., 252 Duffy Ave., Hicksville, Ν . Υ. 3 4 Α - 1

Laboratory Furniture. Brochure available on "Modul ine" unitized steel furniture cited as being flexible in function and arrangement, ^permanent in i ts all-welded construction, and economical in initial cost and upkeep. Aloe Scientific, Div. of A. S. Aloe Co., 5655 Kingsbury, St. Louis 12, Mo .

81A-2

Laboratory Instruments. Circle in­dicated numbers for bulletins on the following: line-operated p H meter model 110, 86A-1; line-operated p H meter model 115, 86A-2; battery-oper­ated p H meter, 86A-3; reflection meter, 86A-4; electronic densitometer, 86A-5; multiplier fluorescence meter, 86A-6; colorimeter model 402-E, 86A-7; colorimeter model 450, 86A-8; colorim­eter model 401, 86A-9. Photovolt Corp., 95 Madison Ave., Ν. Υ. 16, Ν . Υ.

8 6 A - 1 to 9

Laboratory Suppl ies . Circle 66A for information on complete line of products available from laboratory supply house. Company has 22,000 items in stock for immediate shipment. Ar thur H . Thomas Co., Vine St. a t 3rd, Phil­adelphia 5, Pa . 6 6 A

Labware , Fused Silica. I l lustrated bulletin available on fused silica glass­ware cited as providing chemical puri ty, high resistance to hea t shock, unusual electrical resistivity, and ultra-violet transmission (in t ransparent quali ty) . Thermal American Fused Quartz Co., Inc. , 18-20 Salem St., Dover, N . J.

26A (Continued on page 83 A)

άτπ>€ζον . . . from the Greek meaning ' without pressure"

APIEZOrJ-OILS WAXES GREASES

Thesi» Aaiezon produit", have the recog­nition of leading scientists who accord them top preference for high vacuum work. Beetles of thu exc-.-ed'>igly low vapor p'e^ure of all these ot- distillates, at usual room tempcrcturos, *hey arc in great de­mand for all sorts of high vacuum work. The r vapo* pressures are ns low a* 10-6 mm Hq , end even unm^asurable at room temperature.

As the excluvvi; distributor in ttir Unittd States, wo ofK-r immediate delivery fiom stock on th.* complète* range of these oils and compounds.

J A M E S G. B IDDLE CO. Electrical and Scientific Instruments

1316 Arch Street—Philadelphia 7, Penna.

For applications, walking <hara<trri%tics and list ernes, write for Bulletin 43-A

B627

Circle No. 80 A on Readers' Service Card, page 73 A

Now available in standard tube, crucible and combustion boat shapes

For temperatures to 4600° F. (2538° C ) . Possesses one of the highest melting points of all commercial refractories.

Leco zirconia ware . . . for crucibles for melting special alloys, tubes for high-tempera­ture combustion or gas synthe­sis, heat treating and sintering furnaces, and kiln furniture. We will be happy to quote on custom ware.

Leco also specializes in Zircon (ZrSiOO Ware

Write Today for TECHNICAL DATA CATALOG

L A B O R A T O R Y E Q U I P M E N T CORP. 2001 Hi l l top Road · S t . J o s e p h , Michigan

Great chemica l inertness. W o n ' t erode when melt ing steel or high temperature al­loys . . . or react when firing titanates or sintering metals . . . or embrittle platinum.

8 0 A · ANALYTICAL CHEMISTRY