CAS No.: 164462-16-2;
EC Number: 423-270-5;
Fórmula química: C7H8NO6.Na3; C7H11NO6.3Na;
INCI name: Trisodium Dicarboxymethyl Alaninate
Nombre químico::
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;
El MGDA es un agente quelante de molécula pequeña respetuoso con el medio ambiente, de estructura similar al NTA.
El MGDA es fácilmente biodegradable y no contiene fósforo. La alanina es una de sus materias primas naturales.
El MGDA puede sustituir al agente quelante de ácido aminocarboxílico tradicional que no es fácil de degradar, como el DTPA, el EDTA o el agente quelante de fosfato.
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 material.
Estabilidad en medios ácidos y fuertemente alcalinos.
- En condiciones de pH ácido, el MGDA es más estable (menos propenso a cristalizar) en comparación con otros ácidos aminocarboxílicos, y sigue siendo capaz de formar complejos eficaces con iones de hierro en el intervalo de pH de 2 a 3.
- En condiciones alcalinas, el MGDA es eficaz en la quelación del calcio sin precipitación en altas concentraciones de hidróxido de sodio. Se utiliza ampliamente en todo tipo de formulaciones de lavado y limpieza.
Technical Data
| 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 | — |
Productos relacionados
Traditonal Chelating Agents
Aminopolycarboxylates: EDTA acid, EDTA-Na/K, DTPA & DTPA-5Na/5K
Polyphosphonates: HEDP, DTPMP, ATMP, PBTCA
The following is the original English text.
El siguiente es el texto original en inglés.
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.
