Linggo, Marso 10, 2013

Phosphorous




In 1669, phosphorous was discovered - phosphorous was soon used in match heads.

In 1680, an Irish physicist named Robert Boyle (Boyle's Law) coated a small piece of paper with phosphorous and coated a small piece of wood with sulfur. He then rubbed the wood across the paper and created a fire. However, there was no useable match created by Robert Boyle.

In 1827, John Walker, English chemist and apothecary, discovered that if he coated the end of a stick with certain chemicals and let them dry, he could start a fire by striking the stick anywhere. These were the first friction matches. The chemicals he used were antimony sulfide, potassium chlorate, gum, and starch. Walker did not patent his "Congreves" as he called the matches (alluding to the Congreve's rocket invented in 1808). Walker was a former chemist at 59 High Street, in Stockton-on-Tees, England. His first sale of the matches was on April 7, 1827, to a Mr. Hixon, a solicitor in the town. Walker made little money from his invention. He died in 1859 at the age of 78 and is buried in the Norton Parish Churchyard in Stockton.

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