Pentasodium diethylene triamine pentaacetate
Structural formula
| Business number | 03SL |
|---|---|
| Molecular formula | C14H18N3Na5O10 |
| Molecular weight | 503.26 |
| label |
DTPA Na5, Hydrogen peroxide decomposition inhibitor; pentasodium diethylene triamine pentacarboxylate, Auxiliary |
Numbering system
CAS number:140-01-2
MDL number:MFCD00051016
EINECS number:205-391-3
RTECS number:MB8205000
BRN number:None
PubChem number:24850823
Physical property data
1. Light yellow transparent liquid.
2. Solubility: soluble in water, the aqueous solution is alkaline.
Toxicological data
None yet
Ecological data
None yet
Molecular structure data
None yet
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 13
4. Number of rotatable chemical bonds: 11
5. Number of tautomers: none
6. Topological molecule polar surface area 210
7. Number of heavy atoms: 32
8. Surface charge: 0
9. Complexity: 454
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 6
Properties and stability
Stable under normal temperature and pressure.
Storage method
Store in a cool and dry place
Synthesis method
1. Add a measured amount of chloroacetic acid into the reaction kettle, and add NaOH aqueous solution while stirring to dissolve. Then add diethylenetriamine and react at 150~180℃ for 4H to obtain the product.
Purpose
1.EDTA-5Na can quickly form water-soluble complexes with calcium, magnesium, iron, lead, copper, manganese and other ions. It has strong complexing ability for high-valence color-developing metals, so it is widely used in hydrogen peroxide. Bleaching stability synergist: 2 water softener; 3 textile printing and dyeing industrial auxiliaries; 4 benchmark reagents for analytical chemistry; 5 chelating titrant, etc.
2.As a hydrogen peroxide decomposition inhibitor, it is used in textile bleaching and papermaking pulp bleaching processes.