Category: Organophosphonic Antiscale and Corrosion Inhibitors, Chelant

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

Properties:

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

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

CAS No.:

34690-00-1

Molecular Formula:

C₁₇H₄₄O₁₅N₃P₅

Molecular Weight:

685

Structure Formula:

Specifications:

Item	Index
Appearance	Dark amber liquid
Active component, %	43.0~48.0
Chloride (as Cl^–), %	8.0 Max.
pH (1%water solution)	2.0 Max.
Density (20℃) g/cm³	1.20 Min.
Fe, mg/L	65.0 Max.

BHMTPMPA are made from 7-azatridecane-1 13-diamine (NH₂[(CH₂)₆NH(CH₂)₆]NH₂), phosphorus acid (H₃PO₃) and formaldehyde by 5H₃PO₃+NH₂[(CH₂)₆NH(CH₂)₆]NH₂+5HCOH=C₁₇H₄₄N₃P₅O₁₅+5H₂O

Accurately extract NH₂[(CH₂)₆NH(CH₂)₆]NH₂ into the reactor.

Stir, cool and then instill H₃PO₃.

Instill formaldehyde.

Extract impurity, slowly heats, reflux and concentrate.

Uses:

BHMTPMPA is mainly used in oilfield-produced water and industrial cooling water as corrosion inhibitors and antiscalants.

Packing and storage:

200L plastic drum, IBC (1000L), customers’ requirements.

Storage for ten months in a shady room and dry place.

Safety Protection:

Acidity. Avoid contact with eyes and skin. Once contacted, flush with water. Corrosive. IMO class 8, UN 3265.

Synonyms:

BHMTPMPA, BHMT, Bis(HexaMethylene Triamine Penta (Methylene Phosphonic Acid)), Dequest 2090, Gyptron KT-252, Mayoquest 1900.