CAS No 14293-70-0 , Nitrosodisulfonic acid,potassium salt (1:2)

Name: Nitrosodisulfonic acid,potassium salt (1:2)
Synonyms: Nitroxide, disulfo,dipotassium salt; Potassium nitrosyldisulfonate; Fremys salt; Potassium disulfonate nitroxyl;Nitrosodisulfonicacid, dipotassium salt (8CI,9CI); Potassium nitrosodisulfonate(K2(SO3)2NO); Potassium peroxylaminedisulfonate; Fremy's salt;Dipotassium nitrosodisulfonate; Potassium nitrosodisulfonate (6CI,7CI);Nitrosodisulfonic acid,potassium salt (1:2);
CAS Registry Number:14293-70-0
Transport: UN 2813 4.3/PG 1
Safety Statements: Slow decomposition can lead to violent explosion during storage. When heated to decomposition it emits very toxic fumes of SOx, NOx, and K2O. See also NITROSO COMPOUNDS.
Hazard Symbols: Xn
EINECS: 238-219-0
Molecular Weight: 268.33
InChI: InChI=1/2K.H2NO7S2/c;;2-1(9(3,4)5)10(6,7)8/h;;(H,3,4,5)(H,6,7,8)/q2*+1;/p-2
Risk Statements: 14-20/21/22
Molecular Formula: K2NO7S2 *
Molecular Structure:

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References of Nitrosodisulfonic acid,potassium salt (1:2)

Title: Fremy's Salt
CAS Registry Number: 14293-70-0
CAS Name: Nitrosodisulfonic acid dipotassium salt
Synonyms: potassium nitrosodisulfonate; potassium peroxylaminedisulfonate
Molecular Formula: K2NO7S2
Molecular Weight: 268.33
Percent Composition: K 29.14%, N 5.22%, O 41.74%, S 23.90%
Line Formula: K2[NO(SO3)2]
Literature References: Radical oxidizing agent. Prepn: E. Fremy, Ann. Chim. Phys. 15, 408 (1845). Structural studies: W. Moser, R. A. Howie, J. Chem. Soc. A 1968, 3039; R. A. Howie et al., ibid. 3043. Mechanism of oxidation: B. Giethlen, J. M. Schaus, Tetrahedron Lett. 38, 8483 (1997). Synthetic applications: H. J. Teuber, G. Jellinek, Naturwissenschaften 38, 259 (1951); H. Schlude, Tetrahedron 29, 4007 (1973); P. M. Deya et al., ibid. 43, 3523 (1987); G. A. Kraus, N. Selvakumar, Tetrahedron Lett. 40, 2039 (1999). EPR studies: B. L. Bales, Chem. Phys. Lett. 10, 361 (1971); M. T. Jones et al., J. Phys. Chem. 83, 1327 (1979); B. L. Bales et al., J. Magn. Reson. 118, 227 (1996). Photochemistry study: H. Kunkely et al., J. Photochem. Photobiol. A 112, 9 (1998). Review of oxidation chemistry: H. Zimmer et al., Chem. Rev. 71, 229-246 (1971).
Properties: Occurs in two distinct crystalline forms: as monoclinic yellow-orange needles, and as triclinic orange-brown rhombs. Absorption max (water): 248, 545 nm (e 1690, 21).
Absorption maximum: Absorption max (water): 248, 545 nm (e 1690, 21)
Use: Reagent for the oxidation of anilines and phenols to quinones. EPR standard.