Chelating Agents
REACH
Bis(hexamethylenetriaminepenta(methylenephosphonic acid))
CAS Number
34690-00-1
EC Number
252-156-6
What is Bis(hexamethylenetriaminepenta(methylenephosphonic acid))?
Bis(hexamethylenetriaminepenta(methylenephosphonic acid)), CAS 34690-00-1, is a phosphonate chelating agent used in industrial water and process fluid management.
Where is Bis(hexamethylenetriaminepenta(methylenephosphonic acid)) used?
- Water treatment: stabilises hardness ions and suppresses metal corrosion in cooling tower and boiler circuits
- Oilfield and gas processing: dosed into injection water systems to prevent carbonate and sulfate scale fouling pipelines and downhole equipment
- Mining: controls scale buildup on heat exchangers and process vessels exposed to high-hardness brines
- Industrial cleaning: targets mineral deposits
- It sequesters calcium, magnesium, and heavy metal ions to control scale deposition and inhibit corrosion.
Good to know: No established food-grade or pharmaceutical compendial specifications apply, such as FCC, USP, Ph. Eur., BP, EP, or ACS standards.
Commercial specifications
- Aqueous solution, typically around 30–40% active content
- Bulk liquid supply in IBC containers or road tankers
Other Names (Synonyms)
P,p',p'',p'''-(((phosphonomethyl)imino)bis(6,1-hexanediylnitrilobis(methylene)))tetrakisphosphonic acid|[bis[6-[bis(phosphonomethyl)amino]hexyl]amino]methylphosphonic acid|Bis(hexamethylenetriamine)penta(methylenephosphonic acid)|Triaminodihexylenepentakis(methylenephosphonic acid)
What are the physical properties of Bis(hexamethylenetriaminepenta(methylenephosphonic acid))?
Boiling Point 1002.7±75.0 °C(Predicted)
Density 1.24 g/mL at 20 °C
Water Solubility 550g/L at 20℃
Vapor Pressure 0Pa at 25℃
Log P -4 at 20℃
How is Bis(hexamethylenetriaminepenta(methylenephosphonic acid)) classified and handled safely? Learn More
Danger
GHS05· Corrosive
Hazard Statements
H314 Causes severe skin burns and eye damage
H318 Causes serious eye damage
Precautionary Statements
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P316 Get emergency medical help immediately.
Which trade and regulatory codes apply to Bis(hexamethylenetriaminepenta(methylenephosphonic acid))?
UN Number 3265
ADR Class 8
Packing Group III