China High Quality Methyl 2-Methoxy Benzoate Factories - EDTA Disodium (EDTA-2Na) | 139-33-3

China High Quality Methyl 2-Methoxy Benzoate Factories - EDTA Disodium (EDTA-2Na) | 139-33-3 – COLORKEM

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China High Quality Methyl 2-Methoxy Benzoate Factories - EDTA Disodium (EDTA-2Na) | 139-33-3 – COLORKEMDetail:

Products Description

Ethylenediaminetetraacetic acid, widely abbreviated as EDTA, is an aminopolycarboxylic acid and a colourless, water-soluble solid. Its conjugate base is named ethylenediaminetetraacetate. It is widely used to dissolve limescale. Its usefulness arises because of its role as a hexadentate (“six-toothed”) ligand and chelating agent, i.e. its ability to “sequester” metal ions such as Ca2+ and Fe3+. After being bound by EDTA, metal ions remain in solution but exhibit diminished reactivity. EDTA is produced as several salts, notably disodium EDTA and calcium disodium EDTA.

Especificación

ARTÍCULO	ESTÁNDAR
Apariencia	White crystalline powder
Identificación	Pasar la prueba
Assay (C10H14N2Na2O8.2H2O)	99,0% ~ 101,0%
Cloruro (Cl)	=<0,01%
Sulfato (SO4)	=<0,1%
pH (1%)	4.0- 5.0
Nitrilotriacetic acid	=<0,1%
Calcio (Ca)	Negativo
Ferro (Fe)	=< 10 mg/kg
Plomo (Pb)	=< 5 mg/kg
Arsénico (As)	=< 3 mg/kg
Mercurio (Hg)	=< 1 mg/kg
Heavy metals (as Pb)	=< 10 mg/kg

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