National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

The Kinetics and Mechanisms of Hydrolysis of Phosphonothiolates in Dilute Aqueous Solution.

ADA006624

Publication Date	1973
Personal Author	Epstein, J.; Callahan, J. J.; Bauer, V. E.
Page Count	10
Abstract	Studies on the kinetics of hydrolysis of two phosphonothiolates, O-ethyl-S-2-diethylaminoethyl methylphosphonothiolate (1b) and O-ethyl-S-2-diisopropylaminoethyl methylphosphonothiolate (1c), over the pH range from 1 to 13.5 at 25 C are described. Studies at 25 C and 55 C indicate that in acidic solution (up to pH ca. 7) and in more alkaline solution (pH greater than 10), a single reaction resulting in cleavage of the phosphorus to sulfur bond occurs. In the pH range of approximately 7 to 10, compound 1b undergoes two simultaneous reactions (P-S and C-O cleavage) whereas compound 1c undergoes three (P-S, S-C, C-O cleavage) simultaneous reactions. Equations are postulated to account for the products isolated from reaction solutions. Kinetic equations are derived for the decomposition of 1b and 1c over the entire pH range at 25 C. (Author)
Keywords	Organic phosphorus compounds Hydrolysis Reaction kinetics Solutions(General) Thiols Reprints Phosphonothiolates
Source Agency	Army
NTIS Subject Category	99D - Basic & Synthetic Chemistry
Corporate Authors	Edgewood Arsenal Aberdeen Proving Ground MD
Document Type	Journal Article
Title Note	Special publication, Oct 57-Mar 59.
NTIS Issue Number	197510

The Kinetics and Mechanisms of Hydrolysis of Phosphonothiolates in Dilute Aqueous Solution.

The Kinetics and Mechanisms of Hydrolysis of Phosphonothiolates in Dilute Aqueous Solution.
ADA006624

Publication Date	1973
Personal Author	Epstein, J.; Callahan, J. J.; Bauer, V. E.
Page Count	10
Abstract	Studies on the kinetics of hydrolysis of two phosphonothiolates, O-ethyl-S-2-diethylaminoethyl methylphosphonothiolate (1b) and O-ethyl-S-2-diisopropylaminoethyl methylphosphonothiolate (1c), over the pH range from 1 to 13.5 at 25 C are described. Studies at 25 C and 55 C indicate that in acidic solution (up to pH ca. 7) and in more alkaline solution (pH greater than 10), a single reaction resulting in cleavage of the phosphorus to sulfur bond occurs. In the pH range of approximately 7 to 10, compound 1b undergoes two simultaneous reactions (P-S and C-O cleavage) whereas compound 1c undergoes three (P-S, S-C, C-O cleavage) simultaneous reactions. Equations are postulated to account for the products isolated from reaction solutions. Kinetic equations are derived for the decomposition of 1b and 1c over the entire pH range at 25 C. (Author)
Keywords	Organic phosphorus compounds Hydrolysis Reaction kinetics Solutions(General) Thiols Reprints Phosphonothiolates
Source Agency	Army
NTIS Subject Category	99D - Basic & Synthetic Chemistry
Corporate Authors	Edgewood Arsenal Aberdeen Proving Ground MD
Document Type	Journal Article
Title Note	Special publication, Oct 57-Mar 59.
NTIS Issue Number	197510