Water soluble magnesium compounds as cleaning agents and...

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 3/04 (2006.01) C11D 1/00 (2006.01)

Patent

CA 2681890

The present invention relates to compositions and methods employing a water soluble magnesium compound. In certain embodiments, the composition includes water and water soluble magnesium compound, but lacks other materials commonly used in cleaning compositions. The methods and compositions can provide magnesium ion at predefined ratios to calcium ion in water, such as magnesium ion in a molar amount equal to or in excess over a molar amount of calcium ion. A water soluble magnesium salt including an anion of a water soluble calcium salt is more effective than a magnesium salt with an anion of a water insoluble calcium salt. These compositions can be used for reducing lime scale or precipitate formation from hard water, removing soap scum, or the like.

La présente invention concerne des compositions et procédés employant un composé au magnésium soluble à l'eau. Dans certains modes de réalisation, la composition inclut de l'eau et un composé au magnésium soluble à l'eau, mais manque d'autres matériaux généralement utilisés dans les compositions nettoyantes. Les procédés et compositions de l'invention peuvent fournir des ions de magnésium dans des proportions définies par rapport aux ions calcium dans l'eau, et notamment des ions magnésium dans un rapport molaire au moins égal à une quantité molaire d'ions calcium. Un sel de magnésium soluble à l'eau incluant un anion d'un sel de calcium soluble à l'eau est plus efficace qu'un sel de magnésium avec un anion d'un sel de calcium insoluble à l'eau. Ces compositions conviennent pour limiter la formation de tartre ou de précipité de calcaire à partir d'eau dur, pour faire disparaître la mousse de savon, ou analogue.

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