Range of various area grenades / inhaled poisons that don't require an attack roll?

[Gavinfoxx]

So there are a LOT of grenadelike weapons in 3.5e.

Many of them don't require an attack roll to use, but some of these don't list a range of them as a throwable grenadelike.

Where do I find rules for these sorts of alchemical and poison-based grenadelike weapons that affect an area and DON'T require an attack role?

Such as, for example, Sleep-Smoke from City of Splendors, Waterdeep. It doesn't seem to have a range listed!