EDTMPS (Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium), also known as Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium, is a nitrogen-containing organic polyphosphonic acid, which belongs to the cathodic type of corrosion inhibitor. It has the following main effects:
1. Corrosion inhibition: EDTMPS has a 3 to 5 times higher corrosion inhibition rate compared with inorganic polyphosphates. It can form stable complexes with a variety of metal ions (such as calcium, magnesium, iron, etc.), these complexes can form a layer of protective film on the metal surface, preventing the metal and corrosive media in direct contact, thus playing a corrosion inhibition.
2. Scale inhibition: EDTMPS can react with calcium, magnesium and other hard water components to generate soluble complexes, these complexes can prevent calcium carbonate, calcium sulfate and other insoluble salts deposited on the surface of the heat exchanger or the inner wall of the pipe to form scale. It has good scale inhibition effect on calcium sulfate and barium sulfate scale.
3. Dispersing effect: EDTMPS also has good dispersing performance, it can help the suspended particles to maintain a stable state and not easy to settle, which helps to control the distribution of suspended substances in the water body, and further prevent the formation of scale.
4. Application fields: EDTMPS are widely used in corrosion and scale inhibition treatment of circulating water and boiler water, and can also be used as complexing agent for cyanide-free plating, chelating agent and oxygen bleaching stabiliser in textile printing and dyeing industry.
5. Environmentally friendly: EDTMPS are miscible with water, non-toxic and non-polluting, with good chaical stability and taperature resistance, and can still play an effective scale inhibition effect under the condition of up to 200℃.
6. chelating effect: EDTMPS in aqueous solution can be dissociated into 8 positive and negative ions, so it can form chelating complexes with a variety of metal ions to form a loose network structure, effectively dispersed in the water, destroying the normal crystallisation of calcium scale.
In summary, EDTMPS have significant corrosion and scale inhibition in the field of water treatment, and their application scenarios are wide and effective. In the process of use, attention should be paid to follow the relevant regulations and according to the actual situation to choose the appropriate concentration and treatment programme.
As we all know, we Carey Chaical is a professional EDTMPS manufacturer, with many years of production and sales experience, need to know the performance of EDTMPS or know the price can be directly contact us.
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