I've seen this stuff in some stores, it's called "Rush" and it says "highly flammable" on the label and i just asked a guy about it and he said he didn't really know except that that he thinks people sniff it. Is this the same as nitrates? what is the effects?
It's likely isobutyl nitrite. You can huff it and it gives a high about the duration of Nitrous Oxide. Gets your heart going and makes you feel kind of drunkish. Not really worth it on it's own but I've combined it with Ecstasy and it was pretty good, likely mixes good with other stuff as well.