CAS 1429-50-1 Ethylenebis(nitrilodimethylene)tetraphosphonic acid-Professional supplier
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Specification of Ethylenebis(nitrilodimethylene)tetraphosphonic acid
| Test Item | Standard Index |
| Appearance | White crystalline powder |
| Active Substance (based on EDTMPA), wt% | ≥95.0,≥ 99.0 |
| Organic Phosphorus (based on PO₄³⁻), wt% | ≥82.0 |
| pH (1% water solution) | ≤2.0 |
| Chloride Ion (based on Cl⁻), wt% | ≤0.1 |
| Loss on Drying, wt% | ≤2.0 |
| Iron Impurity (based on Fe), mg/L | ≤5.0 |
Basic information of Ethylenebis(nitrilodimethylene)tetraphosphonic acid
CAS: 1429-50-1
Standard:Technical grade
Model:SC-ZX
Production Capacity: 100MT/month
Loading port: Shanghai
Synonyms: Ethylenebis(nitrilodimethylene)tetraphosphonic acid, EDTMPA
MF: C3H9NaO3S2
Usage of Ethylenebis(nitrilodimethylene)tetraphosphonic acid
Our EDTMPA features high active content, low chloride, low iron impurity and low loss on drying. With stable pH property, it delivers lasting chelating, anti-scale and anti-corrosion effects, perfectly matching strict requirements of water treatment engineering, polyurethane factories, textile printing plants and electroplating manufacturers.
1. Industrial Circulating Cooling Water & Boiler Water Treatment
EDTMPA is an excellent organic phosphonate chelating agent with powerful scale and corrosion inhibition performance. It can effectively chelate calcium, magnesium, iron and other metal ions in water to prevent carbonate, sulfate and phosphate scale formation on pipeline and equipment surfaces. It forms stable protective films on steel, copper and aluminum metal substrates to reduce equipment corrosion, widely applied in circulating cooling water systems, medium and low-pressure boilers, heat exchangers and reverse osmosis water systems.
2. Polyurethane (PU) Production
Serves as a high-efficiency metal ion masking agent in polyurethane manufacturing. Trace metal ions in raw materials will catalyze side reactions and cause discoloration, poor stability and abnormal foaming of PU products. EDTMPA tightly sequesters iron, copper and heavy metal impurities, eliminating catalytic interference, improving the stability of polyether polyol and polyurethane foams, and enhancing the color uniformity and storage stability of finished PU materials.
3. Textile Printing & Dyeing Industry
Used as a dyeing auxiliary and water softener. It removes calcium and magnesium hard ions in printing and dyeing wastewater, avoiding dye precipitation and fabric color unevenness. It stabilizes dye liquor pH, improves dye uptake rate, and protects textile fibers from hard water damage, suitable for cotton, polyester and blended fabric processing.
4. Metal Surface Treatment & Electroplating
Acts as a metal surface cleaner and chelating additive for electroplating baths. It removes oxide scales and residual metal impurities on metal workpieces, ensures uniform plating layer, reduces pitting and discoloration of plating products, and extends the service life of electroplating liquid.
5. Daily Chemical & Cleaning Formulations
Added to industrial detergents, descaling agents and water softeners. It synergistically improves descaling efficiency, prevents mineral scale accumulation on glass, metal and plastic surfaces, and maintains long-term cleaning effect without damaging equipment surfaces.
Package Of Ethylenebis(nitrilodimethylene)tetraphosphonic acid
25kg/drum or according to the customers’ demand
Storage: Stored in the dry and ventilated inside storeroom, prevent direct sunlight, slightly pile and put down.
