here we go, how about this?
Vitrioliquid: Vitrioliquid is a magical substance that was created to summon vitrioli from their home plane. There is no other known way to summon these creatures. This liquid is highly acidic, and will eat through any substance other than glass, stone, or earth. The vitrioliquid must be kept in a glass vial to keep it contained.
If the vial is shattered or poured out over earth or stone, vitrioli will appear on that spot at a rate of 5 per round. A vial of vitrioliquid, when found, holds anywhere from 1 to 10 ounces of the stuff (1d10). A newly created vial always contains 10 ounces. Each ounce used summons 1d10 vitrioli, while using the whole vial at once summons a swarm of 10d10 vitrioli. If the liquid is instead poured into a swamp or other body of water rich with plant life, it will instead summon a horde of 100d10 vitrioli. If the substance falls on or is poured into anything other than glass, it will eat its way through and continue downward until it reaches stone or earth, at will point it will begin to summon vitrioli.
The vitrioli will be enraged upon summoning, but can be controlled by creator who mixed the vitrioliquid if he is physically present at the summoning. This control requires concentration, and only lasts for a maximum of X rounds.
A sip of vitrioliquid deals 1d6 points of acid damage to the foolish imbiber; drinking more than a sip is extremely dangerous. Vitriolus is highly poisonous, and aside from the acid damage, the creature must succeed on a DC X Fortitude save or suffer X Con damage as initial and secondary damage. Even if the save is successful, the creature will still suffer X Con damage. This effect supercedes and negates the usual effects of the liquid; no creatures are summoned, and the liquid does not eat its way out of the victim. Strong conjuration; CL Xth; Craft Wondrous Item, Craft (alchemy) X ranks, Knowledge (the planes) X ranks, animate object, command, flame strike, light, and quest; Price X gp.