Product Name

Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid CAS 29329-71-3

Basic Information

CAS No:29329-71-3
Molecular Formula:C2H7NaO7P2
Molecular Weight:228.01
Remarks:Factory direct sales

Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Properties




White Powder



Melting point/℃95
density(Kg/m³)1400(rough estimate)
refractive index1.460
Flash point/℃303.8
storage temproom temperature

Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid USES

1. Industrial water treatment: HEDP·Na can be used as scale inhibitor, corrosion inhibitor and dispersant to prevent scale and corrosion problems in industrial water systems. It can effectively inhibit the precipitation of calcium, magnesium and other metal ions, thereby extending the service life of the equipment and improving production efficiency.
2. Cooling water system: In the cooling water system, HEDP·Na can effectively prevent the formation of scale, reduce the energy consumption and maintenance costs of the equipment. At the same time, it can also inhibit the growth of microorganisms and prevent the production of biological dirt.
3. Boiler water system: HEDP·Na has excellent scale inhibition and corrosion inhibition performance in boiler water system, which can significantly improve the efficiency and safety of the boiler. In addition, it can reduce the amount of sewage discharged by the boiler and reduce the waste of water resources.
4. Oilfield water injection: In the process of oilfield water injection, HEDP·Na can effectively prevent scale and corrosion of water injection pipelines and equipment, improve water injection efficiency and extend the service life of equipment.

Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Packaging

Packing: 25Kg,100Kg,200Kg,1000Kg/Drum

Monosodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid storage

  1. Store barreled products in a cool, ventilated warehouse; keep away from

fire and heat sources. The warehousing temperature does not exceed 30 ℃, and the relative

humidity does not exceed 80%. Keep the container sealed; products should be stored separately

from oxidants, reducing agents, etc., and should not be mixed; be equipped with fire-fighting

equipment of appropriate variety and quantity; the storage area should be equipped with

equipment for emergency treatment of leakage and suitable containment materials;

  1. Store in a special storage tank; keep away from fire and heat sources; there is fire-fighting foam

for a fire emergency, and the tank area is equipped with equipment for the emergency treatment of


  1. Shelf life: The shelf life of this product is 6 months.

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