Dry EDTA
CAS Number: 60-00-4
HS Code: 2921219000
Physical state: Solid, crystalline
Color:white
EINECS:205-358-3
PACKING:25KG/BAG
Xiamen Ditai Chemicals Co., Ltd. is one of the most reliable manufacturers and suppliers of dry edta in China. Welcome to buy high quality chemical products at competitive price from our factory.
EDTA-ACID
Crystalline Structure: In its solid state, EDTA may form crystals with distinct morphologies depending on the conditions of crystallization.
Hygroscopic Nature: It is hygroscopic, meaning it has a tendency to absorb moisture from the surrounding environment. This property can affect its handling and storage conditions.
The preparation of EDTA (ethylenediaminetetraacetic acid) typically involves several steps:
Reaction of Ethylenediamine with Sodium Cyanide: Ethylenediamine (C2H8N2) reacts with sodium cyanide (NaCN) to form a complex intermediate compound.
Equation: C2H8N2 + 2 NaCN → Na2[C2H4(NH2)2] + NaCN
Addition of Chloroacetic Acid: Chloroacetic acid (ClCH2COOH) is then added to the intermediate compound, resulting in the formation of the sodium salt of EDTA.
Equation: Na2[C2H4(NH2)2] + 2 ClCH2COOH → Na2[C10H14N2O8] + 2 HCl
Neutralization: The resulting sodium salt of EDTA is neutralized with a strong base, typically sodium hydroxide (NaOH), to convert it into the free acid form.
Equation: Na2[C10H14N2O8] + 2 NaOH → 2 Na2[C10H14N2O8] + 2 H2O
Acidification: Finally, the sodium salt of EDTA is acidified to obtain the desired EDTA acid.
Equation: Na2[C10H14N2O8] + 2 HCl → H2[C10H14N2O8] + 2 NaCl
|
Item |
SPECIFICATION |
RESULTS |
| CONTENT | 99.0%MIN | 99.4% |
| CHLORIDE |
0.01%MAX |
0.002% |
| PH ( 1%water solution) |
2.8-3.0 |
2.91 |
| Sulphate | 0.05% MAX | 0.1% |
| CHEI ATE VALUE(mg CaCo3/g) |
339min |
340 |
| IRON (Fe) CONTENT |
0.001%MAX | 0.0001% |
| HEAVY METAL (pb) |
0.001%MAX | - |
| APPEARANCE | WHITE POWDER | WHITE CRYSTAL POWDER |
Redox properties: Although EDTA lacks redox activity, its metal complexes engage in redox reactions, rendering it beneficial in specific chemical and biochemical procedures.Chelating Agent: EDTA acts as a chelating agent to bind metal ions, preventing them from reacting with other substances. This property finds applications in industries such as food preservation, water treatment, and pharmaceuticals.
Thanks for your visit and welcome your kind inquiry!
Hot Tags: dry edta, China dry edta manufacturers, suppliers, factory, Disodium Edta in Lotion, EDTA, Edta 4na 4h2o, Factory Supply Cosmetic Raw Materials EDTA 2 Na CAS 139 33 3, products with edta, Use Of Disodium Edta
You Might Also Like
Send Inquiry