Page 36 - Encyclopedia of Chemical Compounds 3 Vols

Timeline of the Development of Chemical Compounds

1980s • A ceramic form of copper(I) oxide is found to have
superconducting properties at temperatures higher than
previously known superconductors.
1980s • Polycarbonate bottles begin to replace the more cum-
bersome and breakable glass bottles.

1987 • Procter & Gamble seeks FDA approval of sucrose polye-
ster. Ten years pass before the FDA grants that approval.

1994 • The U.S. Food and Drug Administration approves the
sale of naproxen as an over-the-counter medication.

1995 • On April 19, American citizens Timothy McVeigh and
Terry Nichols use a truckload of ammonium nitrate and
other materials to blow up the Alfred P. Murrah Federal
Building in Oklahoma City, Oklahoma.
Early 2000s • Some 350,000 propane-powered vehicles exist
in the United States and about 4 million are used world-
wide.

2004 • The leading chemical compound manufactured in the
United States is sulfuric acid, with 37,515,000 metric
tons (41,266,000 short tons) produced. Next is ethylene,
with about 26.7 million metric tons (29.4 million short
tons) produced.

1981 1989
First personal The oil tanker 2001
computers Exxon Valdez 1991 World Trade Center
become sinks off Soviet Union in New York City
available. Alaska. is dissolved. is destroyed.
. . . .

1980 1990 2000 2006

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