Ferrous metal (steel) is easy to rust under outdoor or open-air conditions, which not only affects the appearance quality, but also affects the normal progress of painting, bonding and other processes. If it is not treated in time, it will cause material scrap and cause unnecessary Economic losses.
ingredient
Feeding ratio (g)
hydrochloric acid
40 ~ 60
sulfuric acid
1 ~ 3
Methacrylate
5 ~ 10
Polyaluminum chloride
0 ~ 1
Triethanolamine
0 ~ 0.5
Sodium chloride
0 ~ 1
Citric acid
0 ~ 2 [1]
A certain amount of each component of hydrochloric acid (30 ~ 80g), hexamethylenetetramine (1 ~ 10g), sodium dodecylbenzenesulfonate (1 ~ 10g), sodium dodecyl sulfate (0 ~ 2g ), Urea, (triethanolamine), sodium chloride, 6501, TX-10 in small amounts, and an activator formulated with sodium dodecylbenzenesulfonate, sodium dodecylsulfonate, citric acid, hydrochloric acid, Mix well.
After the steel is soaked with the rust inhibitor, the rust remover penetrates the surface of the steel along the cracks of the rust layer and the impurity layer, and dissolves and peels off the rust layer and the impurity layer. A variety of raw materials in the rust remover are adsorbed on the surface of the steel, the rust layer and the impurity layer, and a diffusive electric double layer is formed on the solid / liquid interface. Because the rust layer and the surface of the steel have the same charge, mutual exclusion occurs , So that the rust layer, impurities and scale peel off from the steel surface.
The hydrochloric acid in the rust remover can clean the steel surface, improve the pickling effect, and speed up the pickling speed. When the rust remover is used repeatedly, in order to further improve the rust removal speed and eliminate odor, an activator composed of citric acid and hydrochloric acid can be added. Citric acid can neutralize iron ions. Hydrochloric acid increases the energy of acids. [1]
(1) The gas released by the rust remover is flammable, so the rust remover should be kept away from high temperature, sparks, flames and places where static electricity is generated.
(2) It should be used in a well-ventilated environment.
(3) Keep container tightly closed when not in use.
(4) Keep out of reach of children.
(5) Avoid skin and eye contact and inhalation. [3]
