タイトルまたは説明

Dipotassium ethylenediaminetetraacetate (EDTA*2K), its CAS number: ********7; appearance is white powder; molecular formula: C*0H*4K2N2O8·2H2O.

Application of dipotassium ethylenediaminetetraacetate:
1. Additives for vacuum blood collection tubes: EDTA*2K can chelate with calcium ions in the blood to prevent blood coagulation, and has a fast dissolution rate and good anticoagulation effect. When using, pay attention: because the blood collection tube is valid for two years, when the use environment changes slightly, such as temperature changes, water can easily evaporate to the tube wall (especially the water in the plastic PET tube solvent can penetrate the tube wall Leakage), causing the EDTA*2K in the tube to crystallize quickly. The crystallized EDTA*2K blood collection tube must be turned upside down at least 8 times when collecting blood, so that the crystallized EDTA*2K can be fully dissolved and mixed in the blood. , If the action is a little bigger, the red blood cells will be destroyed and hemolyzed, and the platelets will aggregate and adhere and be broken.

2. Making deodorant: in parts by mass, including the following substances: acid salt, ammonia, urotropine, dipotassium edetate, isobutanolamine and water.

3. Used as a complexing agent in liquid phase analysis: For example, a tetrabutylammonium hydrogen sulfate buffer salt system for liquid chromatography detection, the solvent is water, the solute includes tetrabutylammonium hydrogensulfate and buffer ion pairs, the buffer ion pair Composed of potassium dihydrogen phosphate and phosphoric acid, the solute also includes a complexing agent, which is preferably EDTA*2K.

4. Preparation of metal polishing agent. The main components of the polishing agent are: dipotassium ethylenediaminetetraacetate, trisodium phosphate, dibutyl phthalate, sodium silicate, inorganic acid, dicarboxylic acid compound, tetrapolyricinoleate, biological buffer Agents, stabilizers, water-soluble surfactants and water. The polishing agent thus prepared can effectively remove impurities and the like on the metal surface.