Show chemistry in U S chemistry in this country actually had its beginnings years ago As early as 1635 a very small unit was set up to supply alum for use in curing fur pelts saltpeter was produced to make gunpowder As the years passed america became world headquarters for phosphate fertil fertilizers liers the inventions of two americans frasch and hall gave us dominating positions in sulphur and aluminum the first successful plastics were american inventions so were the vulcanization of rubber creation of one of the first improved steel alloys and introduction of modern photography |