Bis(HexaMethylene Triamine Penta (Methylene Phosphonic Acid)) BHMTPMPA

Synonyms: BHMTPMPA; BHMT; Bis(HexaMethylene Triamine Penta (Methylene Phosphonic Acid)); Dequest 2090; Gyptron KT-252; Mayoquest 1900

CAS No.: 34690-00-1
Molecular Formula: C17H44O15N3P5
Molecular Weight: 685
Structural Formula:




BHMTPMPA is a high-efficient chelating scale inhibitor, it has a good effect to carbonate and sulfate scale. BHMTPMPA has good water-soluble properties and heat tolerance. Bis(Hexamethylene Triamine Penta (Methylene Phosphonic Acid) has high calcium ion tolerance in a wide pH ranges and temperature as high as 120℃.

BHMTPMPA has a good effect on inhibiting scale by chelation, especially to carbonate and sulfate scale. It can enhance the concentration ration in circulating water and reduce the consumption rate. Combined with ATMP and HEDP, BHMTPMPA has lower total phosphorus content and higher molecular weight.


AppearanceDark amber liquid
Active component %43.0 – 48.0
Chloride (as Cl–) %8.0 max
pH (1%water solution)2.0 max
Density (20℃) g/cm31.20 min
Fe, mg/l65.0 max


BHMTPMPA is mainly used in oilfield produced water and industrial cooling water as a corrosion inhibitor and antiscalant.

Package and Storage:

200L plastic drum, IBC (1000L), customers’ requirement. Storage for ten months in a shady room and dry place.

Safety Protection:

Acidity, avoid contact with eye and skin. Once contacted, flush with water.

Transport info:

Corrosive. IMO class 8, UN 3265.