Job Description:

• 1) Tends crystallizer to process chemical solution into crystalline form: Pumps specified amounts of materials and solvent or dumps drums of solutions into crystallizer.

• 2) Starts agitator and pumps coolants into coils of crystallizer.

• 3) Reads thermometer, observes product, and turns coolant valve to regulate temperature and control rate of crystallization according to specifications.

• 4) May heat ingredients in crystallizer to prevent premature crystallization.

• 5) May start centrifuge to separate crystallized substances from solvent.