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#2535726 - 02/13/12 09:29 PM Re: A Chemistry Term Paper On My UOA [Re: Lethal1ty17]
Carbon Offline


Registered: 09/04/09
Posts: 514
Loc: near Chicago
I suggest comparing the spectral analysis to the classic flame tests of qualitative analysis in chemistry. The flame tests are limited to the more easily ionized elements, but there is a relationship. I presume you did flame tests in lab.


Edited by Carbon (02/13/12 09:39 PM)

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#2685226 - 07/16/12 01:53 AM Re: A Chemistry Term Paper On My UOA [Re: Lethal1ty17]
lubrex1 Offline


Registered: 07/14/12
Posts: 1
Loc: united arab emirates
hi,
i recently bought an ICP for elemental analysis, Is there any body who could guide me about element's wave lenght selection etc.

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#2994493 - 05/06/13 10:24 AM Re: A Chemistry Term Paper On My UOA [Re: Lethal1ty17]
DriveHard Offline


Registered: 11/24/03
Posts: 627
Loc: Middle of Iowa
Seems to be a glaring error...

You stated
These rings have to reliably create a tight seal between the piston and the cylinder wall while travelling at up to 4,000+ feet per second

WOW! If that were the case, there would be thousands of sonic booms in our engine all the time!

I think you meant FEET PER MINUTE.
Nice work though.
_________________________
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#3931693 - 11/28/15 06:54 PM Re: A Chemistry Term Paper On My UOA [Re: tinmanSC]
Ducked Offline


Registered: 10/25/12
Posts: 1142
Loc: Taiwan
Originally Posted By: tinmanSC
"This is basically the temperature at which the oil sample will start to combust in °F." Consider removing "basically" as it makes the definition sound ambiguous.


Perhaps also consider NOT using °F. Centigrade looks more scientifically literate.

Originally Posted By: tinmanSC


"and dirt that gets sucked in through the engine’s intake system." Technically it gets blown in, as a reduction of air pressure in the intake causes the high pressure outside air to push it's way into the intake. But, perhaps this is best left uncorrected. smile


Indeed, because if you "corrected" it, you'd have to explain your "correction", and then you'd look like a pedant.

Originally Posted By: tinmanSC


"The TBN (Total Base Number) is a lubricant’s reserve alkalinity measured in milligrams of potassium hydroxide per gram of oil." The reserve additive can also so be Calcium Sulfonate.


Leave it alone. You're saying how the reserve alkalinity is measured. Doesn't matter in that context what the reserve additive is

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#3931738 - 11/28/15 07:39 PM Re: A Chemistry Term Paper On My UOA [Re: Ducked]
Ducked Offline


Registered: 10/25/12
Posts: 1142
Loc: Taiwan
Originally Posted By: Ducked
Originally Posted By: tinmanSC
"This is basically the temperature at which the oil sample will start to combust in °F." Consider removing "basically" as it makes the definition sound ambiguous.


Perhaps also consider NOT using °F. Centigrade looks more scientifically literate.



Or even Celsius.

(showing my age)

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