Improvements relating to limescale removing compositions

Details Improvements relating to limescale removing compositions Improvements relating to limescale removing compositions

C - Chemistry, Metallurgy

11

D

C11D 3/20 (2006.01) C11D 1/37 (2006.01) C11D 1/02 (2006.01) C11D 1/04 (2006.01) C11D 1/14 (2006.01) C11D 1/22 (2006.01)

Patent

CA 2254844

In limescale-removing compositions of pH 1-5, comprising 1-15 wt.% of a dicarboxylic acid and 1-30 wt.% of an anionic surfactant other than fatty acid, the presence of 0.1-10 wt.% of a fatty acid, prevents low temperature instability of the product which leads to precipitation of the dicarboxylic acid.

L'invention concerne des compositions de détartrage dont le pH se situe entre 1 et 5, et comprenant entre 1 et 15 % en poids d'un acide dicarboxylique et entre 1 et 30 % en poids d'un tensioactif anionique autre qu'un acide gras. Dans ces compositions, la présence de 0,1 à 10 % en poids d'un acide gras évite toute instabilité du produit à faible température susceptible de se traduire par une précipitation de l'acide dicarboxylique.

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