Chemist(Prestige Class)

Requirements
To become a chemist, a character must fulfill all the following criteria:
 * Alignment: Any non-chaotic
 * Skills: Knowledge(Arcana) or Knowledge(The Planes) 5 ranks, Craft(Alchemy) 5 ranks.
 * Feats: Skill Focus(Craft(Alchemy)), Brew Potion
 * Special: Must have successfully used the Craft(Alchemy) skill or Brew Potion feat to create something worth 500 gp or greater

Class Skills
Craft(Alchemy), Knowledge(Arcana), Knowledge(The Planes), Profession(Chemist), Search, Heal, Concentration

Table: The Chemist 

Hit Die: d4

Skill Points: 2 + Int modifier

Chemist's Repertoire: As you continue your understanding of chemistry, you memorize how to make certain chemicals, adding them to your repertoire. Each time you gain Chemist Repertoire, you can choose one of the following items. Once per day, you can attempt to create one of the items you have selected. This process takes one hour. You can also choose to augment the item. Doing so extends the process an hour, doubles the XP cost, increases the gold cost by 50%, and increases the DC by 10. You must decide if you are going to make an augmented item before you begin crafting.

Craft with Substituted Energy: Whenever you craft, brew, or use chemist's repertoire to create something that deals fire, cold, acid, electric, or sonic damage, you can increase the material cost by 50gp in order to change the damage type to a damage type you have taken the Energy Substitution feat in.

Eschew Experience Costs: You are so in tune with your chemical synthesis that you can practice your other skills while waiting for your reactions to finish. Whenever you craft, brew, or use chemist's repeoire to create something, you can remove the XP cost. If you do,the amount of time it takes is doubled and the DC is increased +5 for every 100 XP not paid this way.