>>HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA
HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA 2019-04-01T07:49:08+00:00

Project Description

HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA


CAS No.: 23605-74-5
Molecular Formula: C10H28N2O12P4
Molecular Weight: 492.3
Structural Formula:

HMDTMPA corrosion inhibitor


HMDTMPA is a white crystal powder at room temperature, slightly soluble in water (solubility less than 5%).

HexaMethyleneDiamineTetra (methylene phosphonic Acid) is featured by its high inhibition degree and sustaining effect. HMDTMPA is a multifunctional antiscalant with excellent effect to CaCO3, CaSO4, BaSO4, and FeO. Especially in inhibiting CaSO4scale.

It has a high scale inhibition rate and can last for a long effective time. HMDTMPA can be used for crush treatment in the oilfield and for water treatment in a boiler. However, its chelating ability is comparatively weak. HexaMethyleneDiamineTetra (methylene phosphonic Acid) is particularly suitable for the conditions with desirable free metal ions.

AppearanceWhite crystal powder
Active component (as hmdtpma) %97.0 min
Chloride (Cl) %0.5 max
pH (1% water solution)2.0 max
Fe, mg/l35 max


HMDTMPA is used for oilfield fracturing operation and boiler water treatment. It is also used for a catalytic purpose.

Packing: 25 kg/bag.

Transport Info:

Corrosive. IMO class 8, UN 3265.