China High Quality Epigallocatechin Gallate Suppliers - EDTA Disodium (EDTA-2Na) | 139-33-3 – COLORKEM
China High Quality Epigallocatechin Gallate Suppliers - EDTA Disodium (EDTA-2Na) | 139-33-3 – COLORKEM Detail:
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.
Specification
| ITEM | STANDARD |
| Appearance | White crystalline powder |
| Identification | Pass test |
| Assay (C10H14N2Na2O8.2H2O) | 99.0% ~ 101.0% |
| Chloride (Cl) | =< 0.01% |
| Sulphate (SO4) | =< 0.1% |
| pH (1%) | 4.0- 5.0 |
| Nitrilotriacetic acid | =< 0.1% |
| Calcium (Ca) | Negative |
| Ferrum (Fe) | =< 10 mg/kg |
| Lead (Pb) | =< 5 mg/kg |
| Arsenic (As) | =< 3 mg/kg |
| Mercury (Hg) | =< 1 mg/kg |
| Heavy metals (as Pb) | =< 10 mg/kg |
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To become the stage of realizing dreams of our employees! To build a happier, more united and extra professional workforce! To reach a mutual advantage of our prospects, suppliers, the society and ourselves for China High Quality Epigallocatechin Gallate Suppliers - EDTA Disodium (EDTA-2Na) | 139-33-3 – COLORKEM , The product will supply to all over the world, such as: Bulgaria, Chile, New Delhi, We supply skilled service, prompt reply, timely delivery, excellent quality and best price to our customers. Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound items with good logistics service and economical cost. Depending on this, our products and solutions are sold very well in the countries in Africa, the Mid-East and Southeast Asia. Adhering to the business philosophy of ??customer first, forge ahead', we sincerely welcome clients from at home and abroad to cooperate with us.
By Yannick Vergoz from Switzerland - 2018.12.22 12:52
This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.
By Arlene from Mumbai - 2018.12.05 13:53
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