what is s oxide .......????
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Answer:
WHAT IS S OXIDE .......????
SYN-PROPANETHIAL S-oxide WHICH ARE HIGHLY UNSTABLE, LIKE LINDSAY LOHAN UNSTABLE. THAT NO ONE CAN PRONOUNCE, SYN-PROPANETHIAL-S-OXIDE. THIS PESKY COMBINATION OF SULFURIC ACID, SULPHURDIOXIDE, AND HYDROGEN SULFIDE INTERACTS with the air AROUND YOUR EYE. PROPANETHIAL S-OXIDE IS A THIOCARBONYL COMPOUND AND A SULFOXIDE. THIAL-1-PROPENE-1-THIOL S-OXIDE IS FOUND IN GARDEN ONION
FORMULA: C3H6OS
Answer:
syn-Propanethial S-oxide (C3H6OS), a member of a class of organosulfur compounds known as thiocarbonyl S-oxides (formerly "sulfines"), is a volatile liquid that acts as a lachrymatory agent (triggers tearing and stinging on contact with the eyes).
The chemical is released from onions, Allium cepa, as they are sliced.
The release is due to the breaking open of the onion cells and their releasing enzymes called alliinases, which then break down amino acid sulfoxides, generating sulfenic acids.
A specific sulfenic acid, 1-propenesulfenic acid, formed when onions are cut, is rapidly rearranged by a second enzyme, called the lachrymatory factor synthase or LFS, giving syn-propanethial S-oxide.
The gas diffuses through the air and, on contact with the eye, it stimulates sensory neurons creating a stinging, painful sensation.
Tears are released from the tear glands to dilute and flush out the irritant.
A structurally related lachrymatory compound, syn-butanethial S-oxide, C4H8OS, has been found in another genus Allium plant, Allium siculum.