CleanerSolutions Database
Toxics Use Reduction Institute · Surface Solutions Laboratory
Toxics Use Reduction Institute

Surface Solutions Laboratory

Client Information

Client Number 50 (Cleaner Manufacturer)

Client Images:

Client Image   

Project Number 1

Summary: With the clients, two methods were demonstrated for cleaning, Spray wash for the grease and ultrsonics for the oxides.

Test Objective: To determine if there is a better cleaning agent than HCl, nitric acid, or solvents currently used

Problems with Current Method: Done entirely by hand. Use of concentrated acids are undesirable

Purpose of Cleaning: Remove vacuum grease and reactor residues.

Product Use: Laboratory-scale production of ultra pure chemicals for semi conductors and solar-cell industry.

Cleaning Chemicals: Nitric acid, Hydrochloric acid, Sodium Hydroxide

Trial Number Date Run Purpose Success Rating
0 10/23/97 Find alternative cleaning system to replace acids Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended.