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Diphosphorus (III,V)-oic acid tetrapropyl ester, also known as tetrapropyl diphosphonate, is a chemical compound with the formula (C3H7O)2P(O)OP(O)(C3H7O)2. It is a colorless, viscous liquid that is soluble in organic solvents and slightly soluble in water. diphosphorus (III,V)-oic acid tetrapropyl ester is an organophosphorus compound, which is characterized by the presence of phosphorus atoms bonded to carbon and oxygen atoms. It is used as a flame retardant, plasticizer, and stabilizing agent in various industrial applications, particularly in the production of plastics and resins. The compound's ability to chelate metal ions also makes it useful in water treatment and as a corrosion inhibitor.

690-68-6

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690-68-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 690-68-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 690-68:
(5*6)+(4*9)+(3*0)+(2*6)+(1*8)=86
86 % 10 = 6
So 690-68-6 is a valid CAS Registry Number.

690-68-6Relevant academic research and scientific papers

Electrochemical Oxidation of Metal Dialkyl Phosphites and Their Reaction with Halogens

Romakhin,Zagumennov,Nikitin

, p. 1022 - 1026 (2007/10/03)

Electrochemical oxidation of sodium dialkyl phosphites with alkyl radicals of normal structure leads to formation of tetraalkyl pyrophosphites as the main products, while electrochemical oxidation of litium dialkyl phosphites and sodium salts with branched alkyl radicals yields tetraalkyl hypophosphates. The reaction of metal dialkyl phosphites with halogens leads to analogous results.

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