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Posted by bio_man   April 19, 2017   6275 views

Chances are you've never tasted crude oil, and if you had the chance, you'd probably pass 99.9% of the time. Interestingly, however, crude oil tastes sweet when its sulfur concentration is lower than 0.42% per volume. Sulfur in crude oil is an impurity, and gives off the smell of rotten eggs when found as hydrogen sulfide. Sour crude oil has a sulfur volume higher than 0.50%. The terms "sweet" and "sour" originated from the practice of nineteenth century prospectors who would literally taste or smell the crude to determine its quality.

taste hydrogen sulfur
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