54921-72-1

Basic information

• Product Name: Phosphonic acid, monophenyl ester, ammonium salt
• CAS NO: 54921-72-1
• Molecular Formula: C6H7O3P.H3N
• Molecular Weight: 175.124
• Mol File: 54921-72-1.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Phosphonic acid, monophenyl ester, ammonium salt(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic acid, monophenyl ester, ammonium salt(54921-72-1)
• EPA Substance Registry System: Phosphonic acid, monophenyl ester, ammonium salt(54921-72-1)

Safety Data

• Hazardous Substances Data: 54921-72-1(Hazardous Substances Data)

Usage

General Description

Phosphonic acid, monophenyl ester, ammonium salt is a chemical compound that is derived from phosphonic acid and is used as an additive in various industrial applications. It is commonly utilized as a chelating agent and corrosion inhibitor in water treatment, metal processing, and agricultural formulations. This chemical is known for its ability to bind and neutralize metal ions, such as calcium and magnesium, in water, preventing scale formation and corrosion in industrial equipment and piping systems. In addition, the ammonium salt form of this compound allows for better solubility and compatibility with other chemicals, making it a versatile and effective ingredient in a wide range of products. Overall, phosphonic acid, monophenyl ester, ammonium salt plays a crucial role in maintaining the efficiency and longevity of industrial processes and infrastructure.

Upstream product

• 101-02-0 triphenyl phosphite 
• 108-95-2 phenol 
• 4712-55-4 diphenyl hydrogen phosphite 

Downstream Products

• 137862-40-9 phenyl bis(trimethylsilyl) phosphite 
• 2161-16-2 phosphorous acid ethyl ester-diphenyl ester 
• 14609-90-6 phenyl isopropyl H-phosphonate 
• 20442-56-2 ethyl phenyl H-phosphonate 
• 4712-55-4 diphenyl hydrogen phosphite 
• 101-02-0 triphenyl phosphite 
• 33214-13-0 tetraphenyl pyrophosphite 
• 180906-75-6 C₁₁H₁₅O₄P 
• 130288-82-3 C₁₅H₂₇O₆P 
• 180906-74-5 C₁₆H₂₃O₅P 

Relevant articles and documents

Bisphosphonate prodrugs: Synthesis of new aromatic and aliphatic 1-hydroxy-1,1-bisphosphonate partial esters

Methods for the preparation of various 1-hydroxy-1,1-bisphosphonate partial esters were developed. They were obtained from (alkyl or phenyl) bis(trimethylsilyl) phosphite and aromatic or aliphatic acid chlorides, followed by methanolysis.

Studies on aryl H-phosphonates. 3. Mechanistic investigations related to the disproportionation of diphenyl H-phosphonate under anhydrous basic conditions

Diphenyl H-phosphonate undergoes under anhydrous reaction conditions a base-promoted disproportionation to triphenyl phosphite and phenyl H- phosphonate. On the basis of 31P NMR data the most likely mechanism for this transformation was proposed. In order to substantiate these findings and to get a deeper insight into the chemistry of aryl H-phosphonate esters, we carried out also some studies on activation of phenyl and diphenyl H- phosphonates with various condensing agents. We found that aryl vs alkyl esters of phosphonic acid often follow different reaction pathways during the activation, and this can most likely be traced back to higher electrophilicity of the phosphorus centre and to higher reactivity of the P- H bonds in aryl H-phosphonate derivatives.

Bis Phosphite, a New Reagent for Synthesizing Mono- and Diesters of Phosphorous Acid

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