Talk:Heptane

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I am seeking of the integrity of Heptane after it has been filtered thru a 25-Micron filter. Will the Heptane slowly lose its integrity over each filteration or not? Also is there a shelf life of Heptane, days, weeks, months?

Thanks,

Brian

I added descriptions of the isomers abbreviated from data found on another web page, to assist students who may be trying to understand the concept. Dhaluza 03:36, 14 December 2006 (UTC)

2,2-Dimethylpentane (neoheptane), (H3C)3–C–CH2–CH2–CH3[edit]

Dear all,

If I'm correct, the defenition of "neo" in chemistry, is "A C-atom surrounded by 4 other C-aromt".
Therefore "Heptane" has 3 different "neoheptane's"

1) 2,2-Dimethylpentane, (H3C)3–C–CH2–CH2–CH3
2) 3,3-Dimethylpentane, H3C–CH2–C(CH3)2–CH2–CH3
3) 2,2,3-Trimethylbutane, CH3–C(CH3)2–CH(CH3)–CH3

All these above molecules, contain a C-atom surrounded by 4 other C-atoms. Therefore "NeoHeptane" does not specify a single molecule structure, and does not exist.

Thats why i removed the name "neoheptane" after 2,2Dimethylpentane.

Best regards,
Jeffrey — Preceding unsigned comment added by 130.89.227.112 (talk) 14:59, 23 February 2012 (UTC)