EDTA-2Na CAS 6381-92-6 Disodium edetate dihydrate acid Industrial
The mixture of sodium cyanide and formaldehyde was slowly added
into ethylenediamine aqueous solution at a certain ratio, and air
was introduced into the solution at 85 ~C and decompression to
remove ammonia. After the reaction, the Ph value was adjusted to
4.5 with concentrated sulfuric acid, and the finished product was
obtained by decolorization, filtration, concentration,
crystallization separation and drying.
|Chloride( Cl)%||≤ 0.005 %|
|Sulfate(SO4)%||≤ 0.03 %|
|Metal chelate(Pb)%||≤ 0.001 %|
|Iron(Fe)%||≤ 0.001 %|
|Chelate: mgCaCO3/g||267 min|
|Bulk density kg/m3||850-1050|
|Appearance||white crystal powder|
1. Complexing agents are also used in pharmaceuticals, color
development and smelting of rare metals.
2. Chelating agents; Preservatives; Antioxidant synergists;
3. Used in oxygen-carboxylic complexing agent and pharmaceutical
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