PUZZLESmm CHEAUICAL PEOPLE SOLUTION Our chemical solvents don't need their temperatures taken. They're completely tested long before you see them. We check their density, solvency, odor, boiling range and a lot of other t h i n g s . . . we just want to make sure they match our precise formulation and production standards. You can count on uniform high quality and purity in every Espesol* solvent. We make these superior solutions for compounding paints, textiles, polyesters, plastics and pesticides. We make them as aromatics, inter mediates and aliphatics. And we deliver them right now., .from depots stashed all over the country. The next time you're mulling over Hexanes, Heptanes, Toluenes and the like, think of Signal Oil and Gas Company—a regular Mayo chemical clinic. Our products have been lovingly nursed along and doctored to perfection. And they'll never run hot & cold on you.
IMIZZU: at constant but different tem Tillie Temptress, the comely and peratures. When I put Fahrenheit competent lab technician, was at home with beakers and alembics. thermometers into them, one read ing is equal to —3 times the other." Also with retorts...including the sharp ones she used to keep " A h ! " chorused the chemists, Casanova chemists in line. One following her every move. day she noted something strange " A n d , " she continued, "when I and decided to use it to divert immerse Centigrade thermometers her admirers. in these same liquids, again one "Look," she said, tightening a clamp, thermometer reads —3 times "here are two beakers of Boo-Brew® the other."
The Boo-Brews are 48°F and —16°F; 8 8/9cC and - 2 6 2/3°C. (The body temps of the captivated chemists average a palpitating 99.9°F.)— Contributed by A. Gommel, Chalfont, Pa.— If you have a pet puzzle you would like featured in one of our adver tisements, submit it to: PUZZLES, Signal Oil and Gas Company, P.O. Box 5008, Houston, Texas77012.
"Now," she challenged the beadyeyed group, "What are the temperatures of the liquids?"
Espesol Aromatic, Intermediate and Aliphatic Solvents. DriRex Drycleaning Solvents. Petrochemicals: Hexane, Heptane, Benzene,Toluene, Xylene, Cyclohexane, Ethylbenzene, Paraxylene, Propylene. Developmental Products: Alkylcyclohexanes, Alkylbenzenes, Meta and Para-lsopropylphenol. Call the office nearest you: Houston, 923-1651 · New York, 247-2520 · Chicago, 848-5410 · Cleveland, 333-0188 · Louisville, 583-7634 · Atlanta, 233-3227 Oakland, 834-5110 · Long Beach, 636-3301. Independent Petrochemical Corporation: St. Louis, 652-6050. Denver, 789-1888 · Signal Export Company, Post Office Box 5008, Houston,Texas77012,Phone923-1651.Signal Chemical (Europa) N.V.,Treubstraat19,Ryswyk (Ζ. Η.), Holland, Phone (070) 90-85-85. *Trade Mark Registered United States Patent Office.
espesoL
SIGNAL OIL A N D GAS COMPANY
PETROCHEMICALS DEPARTMENT P.O. BOX 5008, HOUSTON, TEXAS 77012
86 C&EN
SOLVENTS
