Page 28 - Encyclopedia of Chemical Compounds 3 Vols

Timeline of the Development of Chemical Compounds

1836 • British chemist Edmund Davy discovers acetylene.
1838 • French chemist Pierre Joseph Pelletier discovers
toluene.
1839 • German-born French chemist Henri Victor Regnault
first prepares carbon tetrachloride.
1839 • German druggist Eduard Simon discovers styrene in
petroleum.
1845 • Swiss-German chemist Christian Friedrich Scho ¨nbein
discovers cellulose nitrate.
1846 • Americans Austin Church and John Dwight form a
company to make and sell sodium bicarbonate. The pro-
Ò
duct will become known as Arm & Hammer baking soda.
Mid 1800s • Hydrogen peroxide is first used commercially—
primarily to bleach hats.

1850s • Oil is first discovered in the United States in western
Pennsylvania.

1850
1846 1847 Levi Strauss 1858
Mexican Gold manufactures Lincoln debates
American discovered his first pair Douglas in Illinois
War begins. in California. of jeans. senate campaign.
. . . .

1840 1850 1860

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