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Corrosive Liquids
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Physical & Chemical Properties

In chemical plants, the ingestion of corrosive liquids through seals and breathers causes lubrication problems. Organic and inorganic acids, and chlorinated hydrocarbons are most common. The presence of corrosive liquids in a lubricating oil could first be indicated by a change in appearance, odor, or viscosity. Other indicators might be by stain, corrosion, pitting of metal parts, or by the presence of a precipitate. The corrosive material can be identified by laboratory analysis of the oil, or solids in the oil, by IR or X-Ray diffraction techniques. For example, the identification of a precipitate of iron sulfate by X-Ray Diffraction would indicate the corrosive liquid was sulfuric acid.

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