Mechtech2: I wasn't talking about moly "binding" to the cylinder walls or whatever. I was simply referring to the actual molecular make up of what we know as Molybdenum Disulfide.
It is NOT Molybdenum Disulfide
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What about soda ash, oleum or muriatic acid? This is all stuff you (may) run into in the working world...I'm a big fan of CAS numbers. You'll always find "trade names".
Originally Posted By: rudolphna
I'm mature enough to admit I was wrong. We were simply taught that. In hindsight, I can see how they would simplify it for the high school course. By the way we were taught it WAS wrong, but if moly can bond molecularly, then I guess it would be moly disulfide.
I do believe Mo and sulfur covalently bond (don't forget that bonds can have both ionic and covalent characteristics). From the looks of it one Mo(IV) center bonds with 6 sulphide ligands and forms "sheets" of sorts (like graphite) that are loosely held together by van der Waals forces. This is what allows moly to lubricate, the sheets slide away from each other.
I'm mature enough to admit I was wrong. We were simply taught that. In hindsight, I can see how they would simplify it for the high school course. By the way we were taught it WAS wrong, but if moly can bond molecularly, then I guess it would be moly disulfide.
I do believe Mo and sulfur covalently bond (don't forget that bonds can have both ionic and covalent characteristics). From the looks of it one Mo(IV) center bonds with 6 sulphide ligands and forms "sheets" of sorts (like graphite) that are loosely held together by van der Waals forces. This is what allows moly to lubricate, the sheets slide away from each other.
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Originally Posted By: rudolphna
I'm mature enough to admit I was wrong. We were simply taught that. In hindsight, I can see how they would simplify it for the high school course. By the way we were taught it WAS wrong, but if moly can bond molecularly, then I guess it would be moly disulfide.
Very gracefully taken. Props to you.
Ahhh high school chemistry... takes me back awhile...
(My high school chemistry teacher used to let me use the school's lab for various experiments of my own. That stopped one day when she found everything in the lab, including me, covered in a half inch of black soot after an experiment gone wrong
)
I'm mature enough to admit I was wrong. We were simply taught that. In hindsight, I can see how they would simplify it for the high school course. By the way we were taught it WAS wrong, but if moly can bond molecularly, then I guess it would be moly disulfide.
Very gracefully taken. Props to you.
Ahhh high school chemistry... takes me back awhile...
(My high school chemistry teacher used to let me use the school's lab for various experiments of my own. That stopped one day when she found everything in the lab, including me, covered in a half inch of black soot after an experiment gone wrong
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