Be suitable in dipping and spray for steelcopperaluminiummagnesium workpieces.

Brief: work pieces could be corroded easily in strong base, thus, we use week base together with zwitterion and other assistant to compound this JH1213 degreasing agent.

Bath solution compound: Put cold water into the tank till three-quarter with appropriate degreasing agent, then stirring, after, add sufficient water till working level, after, heat bath solution till operating temperature.

Control parameter: compound concentration: 50-80kg/1000l

                 Outlook:colourless or yellowish

                 Free alkali: 0.15-0.25

                 Specific gravity(25degree): 1.05-1.10

                 Ph:9-11

                 Spray pressure:0.8-2.0bar

                 Temperature: 50-70degree

                 Disposal time: 3-10minutes

Testing method: free alkali

                pipet 10ml sample into 250ml conical beaker, add 2-3 dripping phenolphthalein indicator, after drop 0.1N hydrochloric acid till pink disappear. The consumption of the hydrochloric acid is same as free alkalinity.

   Density

                test sample with gravimeter in 25 degree

                ph

test sample with acidometer

bath solution control: need to add 4kg/1000l when free alkali increase 0.01point

reservation requirement: be reserved in shade and cool place out of sunshine

validity period: one year

packing: 25kg/barrel, 200kg/barrel

effluent disposal: according to rules. Bath solution is week base with phosphate, need to be neutralized and effluent disposal.