Buy Phosphonic Acid

Bis(Hexamethylene Triamine Penta (Methylene Phosphonic Acid)

NANJING FINECHEM HOLDING CO., LTD

Specifications

Item	Index
Appearance	Dark amber liquid
Active content %	43.0-48.0
Chloride (Cl-)%	6.0 max
Fe, mg/L	35.0 max
Density(20℃)g/cm3	1.20 min
pH(1%water solution)	2.0 max

Packing & Storage

Packing	200L plastic drum, IBC(1000L),customers' requirement.
Storage	20℃, 2 years.
Shipping	Room temperature in China; may vary elsewhere

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General Information

Chemical & Physical Properties

Safety Information

Synthetic Route

Common Names	Bis(hexamethylenetriaminepenta(methylenephosphonic acid))\|phosphonic acid,[1,6-hexanediylnitrilobis(methylene)]pentakis
Structure
CAS　No.	34690-00-1	Boiling Point (℃)	1002.7ºC at 760 mmHg
Molecular Weight	685.411	Melting Point (℃)	N/A
Appearance	Dark amber liquid	Vapor Specific Gravity	N/A
HS Code	2931900090	Flash Point (℃)	560.2ºC
Solubility	Soluble in water and forms a transparent solution	Autoignition Temperature (℃)	N/A

	SYMPTOMS	PREVENTION	FIRST AID
Safety Phrases		26-36/37/39-45
RIDADR		UN 3265
WGK Germany		N/A
Packaging Group		N/A
Hazard Class		N/A
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness. Burning sensation. Itching.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Nausea. Vomiting.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.

First, phosphoryl chloride (PCl3) is reacted with hexamethylene tetraamine (HMTA) in tetrahydrofuran (THF) to produce N,N',N''-hexakis(hexamethylene)triamine (HMTA6):

PCl3 + 6 HMTA → HMTA6 + 3 PCl5

Next, HMTA6 is reacted with formaldehyde (HCHO) in acetic acid (HOAc) to generate N,N',N''-hexakis(hexamethylene)triamine penta(methylene phosphonic acid) (Bis(Hexamethylene Triamine Penta (Methylene Phosphonic Acid))).

Frequently Asked Questions

What is BHMTPMPA?
BHMTPMPA is an efficient chelating scale inhibitor, which has good scale inhibition effect on carbonate scale and sulfate scale.
BHMTPMPA has excellent water solubility and thermal stability in a wide pH range and a high temperature of 120 °C, and has a high tolerance to calcium ions.