On the principle of chromium technology trivalent chromium plating become the main purpose on how to replace for hexavalent chromium plaiting that is usually disturb the process of plating. Trivalent chromium have ion formula Cr3+, or chrome (III), where hexavalent chrome have ionic formula as Cr6+ or chrome (VI).
To get the above condition some suggestion have been purpose on the chromium process technique such as follow: (take from how to control the concentration of chromium VI)
To get the above condition some suggestion have been purpose on the chromium process technique such as follow: (take from how to control the concentration of chromium VI)
- This electroplating process is use electrodes (anode and cathode) that is connected to DC electric current source make each electrode developed gas and this gas then merge to the surface bring chrome substance Cr (VI) together, causing bad smell and make chromium concentration drop because vapor to atmosphere. The increasing number of chrome gas will generate higher electrical current in bath, longer plating time, higher surface tension and bad chrome coated in the subject. Chromium vapor can take out using fume hood to remove gas in the workplace and then gas is treated first before blow out into atmosphere.
- To much vaporization can make spill and make more chromium vapor. This can be controlled by reduce the electric current that applied on the process.
- Use other raw material in order not produce Cr (VI) too much, for example chromium (III) is less toxic than Cr (VI), for this purpose, supplier of chromic acid may can talk much more about the quality of this substance.
- For person who work in this plant must use Personal Protective Equipment (PPE) for this purpose must use masker or full face masker.