CAS No.: 164462-16-2;
EC Number: 423-270-5;
Chemical formula: C7H8NO6.Na3; C7H11NO6.3Na;
INCI name: Trisodium Dicarboxymethyl Alaninate
Chemical names:
Alanine, N,N-bis(carboxymethyl)-, trisodium salt;
2-Aminopropionic acid, N,N-dicarboxymethyl-, trisodium salt;
Trisodium salt of methylglycinediacetic acid;
MethylGlycine N,N-Diacetic acid, trisodium salt;
MGDA-Na3;
Le MGDA est un agent chélateur à petites molécules respectueux de l’environnement, dont la structure est similaire à celle du NTA, facilement biodégradable et sans phosphore.
L’alanine est l’une de ses matières premières naturelles.
Les agents chélateurs sont également appelés séquestrants (agents de séquestration), agents complexants. Ils sont largement utilisés dans les détergents, les agents de lavage, les produits chimiques de traitement de l’eau, les aides textiles, etc.
| Items | MGDA 80% solid | MGDA 40% solution |
| Appearance | slightly yellow granules | colorless to light yellow liquid |
| Odor | Characteristic | Characteristic |
| Solubility | Soluble in water | Soluble in water |
| pH-Value at 25℃( 10g/Liter) | 10.0 to 12.0 | 8.5 min. |
| Content of NTA [%] | Max. 0.2 | — |
Produits apparentés
Traditonal Chelating Agents
Aminopolycarboxylates: EDTA acid, EDTA-Na/K, DTPA & DTPA-5Na/5K
Polyphosphonates: HEDP, DTPMP, ATMP
The following is the original English text.
Ce qui suit est le texte original anglais.
MGDA is an environmentally friendly small molecule chelating agent, similar in structure to NTA, easily biodegradable and phosphorus-free.
Alanine is one of its natural raw materials.
Chelating agents are also called sequestrants (sequestering agents), complexing agents. They are widely used in detergents, washing agents, water treatment chemicals, textile aids, etc.
Properties:
- Stability in acidic and strongly alkaline environments.
Under acidic pH conditions, MGDA is more stable (less likely to crystallise) compared to other aminocarboxylic acids, and still able to effective complexing iron ions in the pH range of 2 to 3.
Under alkaline conditions, MGDA is effective in chelating calcium without precipitation in high concentrations of sodium hydroxide. It is widely used in all kinds of washing and cleaning formulations. - Stability in high temperature environments.
200℃ (even close to 300℃), still maintains stability. - MGDA can be used to prevent and remove calcium phosphate, soap scum (calcium stearate, calcium oleate), calcium oxalate and other inorganic and organic dirt.
- MGDA is used as a stabilizer for peroxide bleaching.
MGDA can chelate iron, copper, manganese and other metal ions that catalyze the rapid decomposition of hydrogen peroxide.
It can replace the traditional aminocarboxylic acid chelating agent which is not easy to be degraded such as DTPA, EDTA, or phosphate chelating agent such as DTPMP.
Application fields:
Detergents, bleaching stabilizers, descaling cleaner and scale inhibitors, textile printing and dyeing auxiliaries, metal surface treatment, electroplating, oilfield, pulp and paper making, water softening, etc.
Package and storage
25kg or 30kg per plastic drum;
125kg, or 250kg per plastic drum;
1250kg per IBC.
Store in a cool and ventilated place indoors, moisture-proof, storage period of 12 months.
Related Water Treatment Products:
| Abbreviation | Product Name | CAS No. | Category |
|---|---|---|---|
| DBNPA | Acetamide,2,2-dibromo-2-cyano- | 10222-01-2 | Biocidal active substances |
| BNP (Bronopol) | 2-Bromo-2-nitro-1,3-propanediol | 52-51-7 | Biocidal active substances |
| PHMB | Poly(hexamethylenebiguanide) hydrochloride | 32289-58-0; 27083-27-8; | Biocidal active substances |
| PHMG | Polyhexamethyleneguanidine hydrochloride; PHMG chloride | 57028-96-3 | Biocidal active substances |
| CMIT/MIT | 3(2H)-Isothiazolone,5-chloro-2-methyl-,mixt. with 2-methyl-3(2H)-isothiazolone | 55965-84-9 | Biocidal active substances |
| Chelating Agents | Complexing Agents, Sequestering Agents: EDTA, DTPA, HEDP, DTPMP, GLDA, MGDA, IDS, ASDA, etc. | Cleaning Agents, Softener, Scale Inhibitor, etc. | |
| HPMA | Hydrolyzed polymaleic anhydride | 26099-09-2 | Polymer, dispersant, scale inhibitor |
| PESA | 2,3-Oxiranedicarboxylic acid, disodium salt, homopolymer | 109578-44-1 | Polymer, dispersant, anti-scaling |
| Sodium Polyaspartate | Polyaspartic Acid Sodium Salt; PASP-Na; | 34345-47-6; 94525-01-6; 181828-06-8 | Polymer, dispersant, scale inhibitor |
