De-Ox™ RDZ-1556

A Cleaner/De-oxidizer for Electrical Contacts

De-Ox™ is a de-oxidizer that will remove Tin, Lead oxides as well as other oxides from contact surfaces, reducing resistance levels to less than even new contacts, and restoring semiconductor test sockets to better than new performance.De-Ox™ deoxidizes without “activating” the metal surface. Thus re-growth of oxides (and thus resistance) is the same as new contacts. De-Ox™ removes only oxides, and will not attack most metals, except Zinc and Aluminum. Only a final rinse with water, preferably deionized, is required after the de-oxidizer step.

MAKE-UP: Product should be used as received – Do not dilute.

OPERATION: May be sprayed or used in immersion tank. Recommend minimum six-minute solution contact @ 120O F (50OC) use product until depleted, then replace. Analytical procedures are available to determine consumption of product.

EQUIPMENT: Use any equipment that can handle strong alkali (caustic) and temperature.

SAFETY:

De-Ox™ contains a very strong alkali (caustic) and should be handled only with appropriate safety equipment. Safety goggles are mandatory, waterproof (vinyl, rubber etc.) gloves are strongly recommended. Consult Material Safety Data Sheet for further information.

DISPOSAL: May contain dissolved metal oxides, which may require treatment before spent solutions are disposed.
Dispose of in accordance with Federal, State and local regulations. Contact your RD Chemical representative for further information.

PACKAGING: 1 x 4 liter, 4 x 4 Liter case, 20 liter drums, and 200 liter drums

Using it Successfully

De-Ox™ removes both Tin and Lead oxides, without removing any actual metals. It does this through two different, but not wholly independent mechanisms, and the capacity for dissolving each metal, is to some extent dependent on the amount of the other metal in solution.

Specifically, De-Ox™ will dissolve Tin oxides well past the point where it stops dissolving Lead oxides. Further, dissolution of Tin oxide lowers the capacity to dissolve Lead oxide, but not the other way around. This may not be an issue if the deposits are all, or largely Tin oxide, however, if the oxides are both Tin and Lead oxides, as De-Ox™ is consumed past the point it should be dumped, it will continue dissolving Tin oxide, thus apparently still working, while actually leaving Lead oxide on the surface.

To avoid this issue, it is best to do an activity titration, and to follow the results. This will insure complete dissolution of all oxides, and lowest possible resistance on treated connectors.

If unable to perform activity titration recommended use of De-Ox™ follows:

A. Burn-In-Boards (BIBs), approximately 12 boards per liter.

B. Test Sockets, approximately 500 each per liter.

RD Chemical Company makes these recommendations in good faith, based on laboratory and field-testing. Ultimate responsibility for propriety of use, however, must rest with the purchaser and user.

RD Chemical Company recommends thorough testing of its products, before use.