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Storage of Copper Acetate Actively Corroding Metal

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Copper Acetate Manufacturers WSDTY) proposed when examining a collection, look for metals that exhibit signs of active corrosion. Because actively corroding pieces create dust, chloride, or staining problems by scattering corrosion products, they should be removed from the main collection and stored in a separate area with an RH below 35%. The drier conditions will reduce the corrosion rate, but the source of the corrosion will still need to be addressed. Seek advice from a qualified conservator on the care and treatment of such objects. Small, important pieces can be stored in desiccators containing silica gel that has been dried completely or conditioned to a low RH.

Large numbers of unstable metal objects can be stored together in a small room or in a cabinet where RH can be kept low with a dehumidifier. Small silica gel dehumidifiers are suitable for this purpose. Domestic dehumidifiers are not as effective as silica gel dehumidifiers because they cannot reduce the RH below 40%, but they are better than no dehumidifier at all. Lithium chloride dehumidifiers are not recommended because of the risk of contaminating artifacts with lithium chloride, which could make the corrosion worse.

Humidity control systems require regular maintenance. Empty the water pans of dehumidifers often, and check and recondition silica gel regularly.

Click Cuprous Chloride to learn about more information

 

asked Aug 12 in holidays by weishida (1,060 points)  
    

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