13525-99-0 Usage
General Description
Phosphinic acid, P,P-bis(2-ethylhexyl)-, also known as bis(2-ethylhexyl) phosphinic acid (D2EHPA), is a chemical compound widely used in the extraction of metals from aqueous solutions. It is primarily utilized in the recovery of rare earth elements, uranium, and other metals from ores and industrial waste streams. D2EHPA exhibits excellent selectivity and high extraction efficiency for a range of metal ions, making it a valuable reagent in hydrometallurgical processes. Additionally, it is commonly employed in solvent extraction and liquid-liquid extraction processes for metal separations in various industries, including mining, chemical manufacturing, and nuclear fuel reprocessing. Despite its utility, careful handling and storage of D2EHPA are necessary due to its potential irritant and corrosive properties.
Check Digit Verification of cas no
The CAS Registry Mumber 13525-99-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,2 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 13525-99:
(7*1)+(6*3)+(5*5)+(4*2)+(3*5)+(2*9)+(1*9)=100
100 % 10 = 0
So 13525-99-0 is a valid CAS Registry Number.
13525-99-0Relevant articles and documents
Microwave-assisted synthesis of dialkylphosphinic acids and a structure-reactivity study in rare earth metal extraction
Du, Ruo-Bing,An, Huaying,Zhang, Suhui,Yu, Donghai,Xiao, Ji-Chang
, p. 104258 - 104262 (2015)
Dialkylphosphinic acids were synthesised by a microwave-assisted method with high yields and wide substrate applicability. A structure-reactivity study indicates that an increase in steric hindrance in the β position led to a decrease of extraction ratio and heavy rare earth element separation activity. A computational study was also conducted to understand the steric effect.
