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Monitoring Chloride Content in Chlorine Containing Solvents

IP.com Disclosure Number: IPCOM000076075D
Original Publication Date: 1972-Jan-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Berenbaum, L: AUTHOR [+3]

Abstract

The proposed method is designed to check the corrosive nature of the chlorinated solvent baths, so that the solvent can be changed before damaging components. A suitable monitor is one which has a strong affinity for chlorine and which forms a stable compound (i.e. one with a high-binding energy). An example of such a monitor is lead which forms the compound PbCl(2).

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Monitoring Chloride Content in Chlorine Containing Solvents

The proposed method is designed to check the corrosive nature of the chlorinated solvent baths, so that the solvent can be changed before damaging components. A suitable monitor is one which has a strong affinity for chlorine and which forms a stable compound (i.e. one with a high-binding energy). An example of such a monitor is lead which forms the compound PbCl(2).

The monitor in a desirable form (i.e. foil, wire) may be attached to the basket or other convenient location, so that it can be carried along with the components through the chlorinated solvent baths. After the monitors have been exposed, they may be analyzed for the presence of chlorides. An analysis can be conducted by any technique which will give a quick, positive identification of chlorine combined in the correct ratio to, for example, lead. A common technique used for this purpose is X-ray fluorescence or electron microprobe.

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