An environmental-friendly multifunctional metal corrosion inhibitor, modified inositol hexaphosphate, was successfully developed at Kangzhuang New Resource Technology Institute, Yutian County, Hebei Province. The corrosion inhibitor replaces chromate and cyanide, and chromium-free passivation and non-cyanide plating have achieved remarkable results. Its promotion will open up an important way for our country to achieve harmless metal surface treatment.
The nitrites, chromates, heavy metals, and cyanides, which are essential chemical components of the metal surface treatment industry, are extremely poisonous to the human body, and the emission of inorganic phosphates can also cause harm to the ecological environment. Therefore, the search for a new type of green metal corrosion inhibitor to replace the above-mentioned harmful substances has always been the focus of attention in the industry at home and abroad.
Modified inositol hexaphosphate is made from phytate by denaturing synthetic processing, with excellent anti-corrosion properties and a wide range of applicable performance. Practice has proved that the modified inositol hexaphosphate can completely replace nitrite, inorganic phosphate, molybdate and zinc salt as water-based rust inhibitors, and prevent ferrous metals, non-ferrous metals and alloy materials from inter-process and storage. Rust, rust-proof period of up to 3 to 12 months; alternative inorganic phosphate for the metal surface coating before the phosphating treatment or instead of chromate phosphating after passivation, the effect is better than the traditional process.
The nitrites, chromates, heavy metals, and cyanides, which are essential chemical components of the metal surface treatment industry, are extremely poisonous to the human body, and the emission of inorganic phosphates can also cause harm to the ecological environment. Therefore, the search for a new type of green metal corrosion inhibitor to replace the above-mentioned harmful substances has always been the focus of attention in the industry at home and abroad.
Modified inositol hexaphosphate is made from phytate by denaturing synthetic processing, with excellent anti-corrosion properties and a wide range of applicable performance. Practice has proved that the modified inositol hexaphosphate can completely replace nitrite, inorganic phosphate, molybdate and zinc salt as water-based rust inhibitors, and prevent ferrous metals, non-ferrous metals and alloy materials from inter-process and storage. Rust, rust-proof period of up to 3 to 12 months; alternative inorganic phosphate for the metal surface coating before the phosphating treatment or instead of chromate phosphating after passivation, the effect is better than the traditional process.
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