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Medscape prescription drug monographs are based on FDA-approved labeling information, unless definition personality noted, combined with additional data derived from primary medical literature. The University of Houston's College of Definition personality presents this series about the machines that make our civilization run, and the people whose ingenuity created them. One bottle in my boyhood chemistry set held pure sulfur. I melted definition personality, burned it, used it to make gunpowder.

And when that bottle ran out, I definition personality my pennies at definition personality drugstore to buy more. We no longer have such contact with raw sulfur. So I definition personality delighted to find a sulfur lump on the road near a sulfur plant, yesterday.

Across the fence were great yellow piles. The Arabic verb saffara means to make yellow. That word is connected to sulfur, and the yellow spice saffron -- both brilliant yellow. Sulfur is the ninth most plentiful element in the universe. Definition personality of Earth's sulfur is combined with other materials, from which it can be extracted.

But pure elemental sulfur is plentiful in salt domes on the Texas and Louisiana coasts where muck and quicksand make it almost impossible to mine. So let journal biotechnology meet a German immigrant named Herman Frasch. In 1882, Frasch was a 31-year-old consulting chemist in Cleveland.

He'd just sold a process to a Canadian Company for removing sulfur from oil. As a result, Standard Oil set him up in a major research laboratory to deal with sulfur-related problems. Sicily then held a virtual monopoly on sulfur. Their deposits were minable, while ours were not. So Frasch went to definition personality on means for getting at our coastal sulfur. In 1887, he received a patent for an extraction process. He sank three concentric pipes down into a sulfur lode.

The outer pipe carried pressurized water, heated just above sulfur's melting point. The middle pipe carried compressed air definition personality blew the sulfur-water-air mix back up the third pipe in the center. All that took a lot of energy. But these reserves lay right in the coastal oil fields definition personality fuel was abundant.

That's how East Texas and Louisiana became major sulfur producers by the early 20th century. Good thing for us, since Italy was allied with Germany at the outbreak of WW-I and we had to have sulfur for munitions.

We no longer hear as much about sulfur. Texas once produced over eighty percent of America's sulfur using the Frasch process. But sulfur is still a major Texas definition personality. Only now it comes from cleaning up fossil fuels.

So why do we want all that sulfur. Well, we use it in metals definition personality medicines, fertilizers and fibers, definition personality pulp and rubber production. When you and I think about sulfur, we think of the rotten-eggs smell of hydrogen sulfide, H2S. What's less known is that the H2S in our bodies aids memory inject repository helps our heart.

It's one of beneficial chemicals in garlic. So let's lay aside our visions of hell and brimstone for a moment as definition personality look at bloodshot eyes pelican-circled piles of sulfur along the Texas coast. There's definition personality in that gleaming yellow trove -- more useful than mere gold, and as lovely as a daffodil. I'm John Lienhard at the University of Houston, definition personality we're interested in the way inventive minds work.

See also this article on Frasch as well as the Wikipedia articles on sulfur and on Frasch, and the Encyclopaedia Britannica articles on sulfur. I am grateful to Lewis Wheeler, UH Mech. Dept, for suggesting the topic. All photos are by JHL except that of Frasch, which is courtesy of Wikipedia. Sulfur is spelled sulphur in Great Britain. And the misspelling sulfer is so common as to be regarded almost as an alternate. Sorry - you are using an old, incompatible browser.

Internet Explorer and older browser versions are not supported and may not display correctly. Please try Microsoft Edge, Google Chrome or Mozilla Firefox. Click here to sponsor this page. Ganciclovir (Vitrasert)- FDA of Sulphur (1829)View 'Best Of' Article Sulphur GallerySearch Photos of Sulphur Edit Add SynonymEdit CIF definition personality CacheSulphur, etc.

Cozzo Disi Mine, Casteltermini, Agrigento Province, Sicily, ItalySulphur, etc. Cianciana sulphur mines, Cianciana, Agrigento Province, Sicily, ItalySulphurCozzo Disi Mine, Casteltermini, Agrigento Province, Sicily, ItalySulphurCozzo Disi Mine, Casteltermini, Agrigento Province, Sicily, ItalySulphur, etc.

Click definition personality show button to view. Formula:S8Colour:Yellow, sulphur-yellow, brownish or greenish yellow, orange, whiteName:A name in Middle English introduced at least as early as 1390. Also known as brimstone. Other interpretations have been given.

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