| Category | Liquids |
| Type | acid |
| Source | varies |
| Cost | see below |
Acids come in varying levels of strength. Alchemists group these into categories. The potency of acid weakens with prolonged exposure to air, temperature, and other elements. Category 4 Acid has the potency of a black dragon's breath weapon. The application of an alkaline to the affected areas eliminates successive damage.
Acid damage is calculated based on the volume of acid thrown at a victim. To be used as a weapon, acid must be thrown in quantities of 6 ounces or more. Each 6 ounces scores the damage listed below. Large quantities of acid used as a weapon can never do more than quadruple damage. Anyone burned for more than 25% of their hit points on exposed areas (arms, legs, face) will suffer a permanent loss of 1 pt of comeliness. This can be recovered with heal or similar high-level spells.
| Name | 1st Rd Dmg | 2nd Rd Dmg | 3rd Rd Dmg | Item DC | Cost / Ounce |
|---|---|---|---|---|---|
| Category 1 | 1 | 1 | 0 | 12 | 1 CP |
| Category 2 | 1-4 | 1-3 | 0 | 14 | 1 SP |
| Category 3 | 1-6 | 1-4 | 1-3 | 17 | 1 GP |
| Category 4 | 1-10 | 1-8 | 1-6 | 19 | 5 GP |