HEDP·Na4 Tetra sodium(1-HydroxyEthylidene) Diphosphonate

CAS No ：3794-83-0(4-Na) 29329-71-3（x-Na） 

Alias：Tetrasodium Hydroxyethylene Diphosphonate 

Molecular formula：C2H4O7P2 Na4 

Relative molecular mass: 294 

Structural formula 

1.Performance and usage 

HEDP·Na4 is the sodium salt of HEDP and is an excellent inhibitor of calcium carbonate scale. HEDP·Na4 is mainly used for metal corrosion inhibition in low-pressure boiler water treatment, circulating water treatment, industrial municipal cleaning water, and swimming pool sterilization. This product is white powder solid, easily soluble in water, does not absorb moisture, is convenient for transportation, and is suitable for use in severe cold conditions. HEDP·Na4 is an organic phosphonate scale and corrosion inhibitor, which can form stable complexes with iron, copper, zinc and other metal ions, and can dissolve the oxides on the metal surface. It still plays a good role in corrosion and scale inhibition at 250℃. Widely used in industrial circulating cooling water, low pressure boilers, oilfield water injection and oil pipelines in electric power, chemical industry, metallurgy, fertilizer and other industries to inhibit scale and corrosion; HEDP·Na4 can be used as metal and non-metal cleaning agent, printing and dyeing Industrial peroxide stabilizer and color fixing agent, cyanide-free electroplating complexing agent, daily chemical additive. 

2.Technical Specifications

3.Packaging and storage

Liquids are packed in plastic barrels, 30 kg or 250 kg per barrel, and solids are packed in plastic woven bags lined with polyethylene bags, with a net weight of 25kg per bag, which can also be customized according to user needs. Stored in a cool indoor place, the storage period is twelve months. 4.Safety protection This product is alkaline, pay attention to labor protection during operation, avoid contact with skin, eyes, etc., rinse with plenty of water after contact.