As it is so good at displacing molecules in coordination complexes, EDTA can be used to prevent undesired metals in trace amounts from reacting and having detrimental effects on products.
In general, EDTA reduces the reactivity of metal, preventing any unwanted effects that may result from its presence.
EDTA is used in a salt form, most likely in disodium (EDTA-2Na)or calcium disodium EDTA (EDTA-CaNa2).
1. EDTA has a wide range of coordination properties and can form stable chelates with almost all metal ions Pros: offers a wide range of possibilities for the determination of elements (superior to acid-base, precipitation methods).
Cons: multiple components easily interfere with each other - selectivity.
2. The coordination ratio between EDTA and m-edta formed is 1:1 in most cases.
3, chelate most of the charge, it can be dissolved in water, rapid reaction.
It is mainly used for complexing metal ions and separating metals. Used in textile, printing and dyeing, chemical fiber as processing auxiliaries; Used in the pharmaceutical, papermaking and food industries; Used as water treatment agent; For boiler, water tank descaling agent; Used for agricultural foliar fertilizer sprays.
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