Ethylenediaminetetraacetic Acid Tetrasodium Salt
Structural formula
| Business number | 01D3 |
|---|---|
| Molecular formula | C10H12N2O8Na4 |
| Molecular weight | 318.17 |
| label |
EDTA tetrasodium salt |
Numbering system
CAS number:64-02-8
MDL number:MFCD00012460
EINECS number:200-573-9
RTECS number:AH5075000
BRN number:None
PubChem ID:None
Physical property data
1. Character:White crystalline powder
2. Density (g/mL,25/4℃): Unsure
3. Relative vapor density (g/mL,AIR=1): Unsure
4. Melting point (ºC):> 300
5. Boiling point (ºC,Normal pressure): Uncertain
6. Boiling point (ºC, 5.2kPa): Unsure
7. Refractive index:Not sure
8. Flash point (ºC): Unsure
9. Specific optical rotation (º): Unsure
10. Autoignition point or ignition temperature (ºC): Unsure
11. Vapor pressure (kPa,25ºC): Unsure
12. Saturated vapor pressure (9. Determine the number of atomic stereocenters:0
10. Uncertain number of atomic stereocenters:0
11. Determine the number of stereocenters of chemical bonds:0
12. Uncertain number of chemical bond stereocenters:0
13. Number of covalent bond units: 5
Properties and stability
None yet
Storage method
This product should be sealed and stored in a cool, dry place away from light.
Synthesis method
By the reaction of ethylenediamine and chloroacetic acid, or by the reaction of ethylenediamine with formaldehyde and sodium cyanide Obtained by reaction.
Purpose
Used for processing of color photosensitive materials Bleach fixer, activator of styrene-butadiene rubber, hard water softener, sequestering agent, etc. EDTATetrasodium in various speciespHIt has the ability to complex calcium-containing hard water within a range and at various concentrations, and inpH≥8 is most effective. With calcium metal to1：1More ratio complex, has excellent thermal stability in water, and will not decompose even in superheated water. It is a very effective hard water softener. This product is non-toxic.
, polyvalent chelating agents, etc. EDTATetrasodium in various speciespHIt has the ability to complex calcium-containing hard water within a range and at various concentrations, and inpH≥8 is most effective. With calcium metal to1：1More ratio complex, has excellent thermal stability in water, and will not decompose even in superheated water. It is a very effective hard water softener. This product is non-toxic.