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       CODE: 558.682-014 Buy the DOT:Download/CD-ROM
TITLE(s): DISSOLVER OPERATOR (chemical)
Controls equipment that dissolves and precipitates chemicals used in manufacturing chemical
products, such as butadiene and styrene: Pumps chemical solutions through premeasuring tanks,
dissolver tanks, and precipitator tanks, observes thermometers, and turns valves to maintain
temperature in tanks within specified limits to dissolve and precipitate solutions. Starts tank
agitator to mix solution for prescribed time. Titrates sample of solution and inserts hydrometer to
determine acidity and specific gravity of product. Observes flowmeters and turns valves to regulate
flow of ingredients through tanks to alter concentration and produce product meeting specified
standard. Pumps or drains remaining solutions from precipitate and turns valves to transfer product
for further processing, shipment, or storage. When controlling precipitator tanks only, may be
designated Precipitator Operator (chemical). When dumping caustic soda cake into dissolving tanks
and controlling tanks to produce solution of specified concentration, may be designated
Bottom-Liquor Attendant (chemical).
GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77
ONET CROSSWALK: 92935 Chemical Equipment Controllers and Operators
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