Bis(hexamethylenetriaminepenta(methylenephosphonic acid))
[CAS# 34690-00-1]

Identification

• Classification: Organic raw materials >> Organic phosphine compound
• Name: Bis(hexamethylenetriaminepenta(methylenephosphonic acid))
• Synonyms: [[(Phosphonomethyl)imino]bis[hexamethylenenitrilobis(methylene)]]tetrakisphosphonic acid; BHMTPMPA
• Molecular Formula: C₁₇H₄₄N₃O₁₅P₅
• Molecular Weight: 685.42
• CAS Registry Number: 34690-00-1
• EC Number: 252-156-6
• SMILES: C(CCCN(CP(=O)(O)O)CP(=O)(O)O)CCN(CCCCCCN(CP(=O)(O)O)CP(=O)(O)O)CP(=O)(O)O

Properties

• Density: 1.6±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.578, Calc.^*
• Boiling Point: 1002.7±75.0 °C (760 mmHg), Calc.^*
• Flash Point: 560.2±37.1 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS02 Danger
• Risk Statements: H314-H318
• Safety Statements: P260-P264-P264+P265-P280-P301+P330+P331-P302+P361+P354-P304+P340-P305+P354+P338-P316-P317-P321-P363-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Serious eye damage	Eye Dam.	1	H318
Skin corrosion	Skin Corr.	1A	H314
Substances or mixtures corrosive to metals	Met. Corr.	1	H290
Skin irritation	Skin Irrit.	2	H315
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Specific target organ toxicity - single exposure	STOT SE	2	H371
Specific target organ toxicity - repeated exposure	STOT RE	2	H373

Discovery and Applications

Bis(hexamethylenetriaminepenta(methylenephosphonic acid)) is a specialized chemical compound known for its multifunctional properties, particularly in water treatment and materials science. This compound belongs to a class of aminopolycarboxylic acids and phosphonic acids, which have gained significance due to their ability to chelate metal ions and inhibit scale formation in aqueous environments. The discovery of bis(hexamethylenetriaminepenta(methylenephosphonic acid)) is linked to the growing need for effective water treatment agents, particularly in industrial processes where scaling can lead to significant operational challenges.

The synthesis of bis(hexamethylenetriaminepenta(methylenephosphonic acid)) involves the reaction of hexamethylenetriamine with phosphonic acid derivatives. The resulting structure comprises a central hexamethylenetriamine core with five methylenephosphonic acid side groups attached, allowing for multiple binding sites that enhance its chelating capabilities. This unique structure enables the compound to effectively interact with metal ions, particularly calcium, magnesium, and iron, making it valuable in preventing scale deposition in water systems.

One of the primary applications of bis(hexamethylenetriaminepenta(methylenephosphonic acid)) is in the field of water treatment. It is commonly used as a scale inhibitor in cooling water systems, boilers, and industrial processes where hard water is prevalent. By chelating metal ions, the compound prevents the formation of scale deposits on equipment surfaces, which can lead to reduced efficiency and increased maintenance costs. Its effectiveness in controlling scale formation has made it a preferred choice for many industrial water treatment formulations.

In addition to its role as a scale inhibitor, bis(hexamethylenetriaminepenta(methylenephosphonic acid)) is also utilized as a dispersant. The compound helps to stabilize suspended particles in aqueous solutions, preventing them from aggregating and settling. This property is particularly beneficial in various industrial applications, including paint and coatings, where maintaining a stable dispersion of pigments is crucial for achieving consistent product quality.

Furthermore, the compound has been investigated for its potential applications in the oil and gas industry, particularly in enhanced oil recovery processes. The ability of bis(hexamethylenetriaminepenta(methylenephosphonic acid)) to modify interfacial tension and enhance fluid flow through porous media can improve oil recovery rates. This aspect is particularly important in maximizing the efficiency of oil extraction from reservoirs.

Safety considerations are essential when handling bis(hexamethylenetriaminepenta(methylenephosphonic acid)). As with many phosphonic acid derivatives, proper safety protocols should be followed to minimize exposure. Regulatory assessments are necessary to ensure that the compound is used safely in various industrial applications.

In summary, bis(hexamethylenetriaminepenta(methylenephosphonic acid)) is a versatile chemical compound with significant applications in water treatment, industrial processes, and oil recovery. Its ability to inhibit scale formation and act as a dispersant enhances its utility in diverse fields. As research continues to explore its potential and optimize its performance, this compound is expected to play an essential role in advancing water management and industrial efficiency.

References

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