Murphy Oil Soap is a cleaning product marketed by Colgate-Palmolive. It was originally invented by Murphy-Phoenix Company, later became Colgate-Palmolive's subsidiary in 1991. It is available in a concentrated liquid form which is then mixed with water, as well as pre-diluted form which comes in a trigger spray bottle. Commercials for the product state that the product is ideal for cleaning wood surfaces. Despite the name, oil soap does not contain oil; it contains potassium soap manufactured from vegetable oil. The other constituents of Murphy Oil Soap are sodium EDTA, propylene glycol, fragrance, surfactants, and water. Murphy Oil Soap is commonly used to clean and polish horse tack, such as bridles and saddles. It is also commonly used to clean black-powder weapons after use, since the lack of petroleum-based oil and the presence of vegetable oil lessens the amount of sludge that is created when cleaning black powder residues from weapons.
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