Paraxzone ( Paraquat 24% SL )

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NOMENCLATURE
paraquat dichloride
IUPAC name 1,1′-dimethyl-4,4′-bipyridinediium dichloride; 1,1′-dimethyl-4,4′-bipyridinium dichloride; 1,1′-dimethyl-4,4′-bipyridylium dichloride
Chemical Abstracts name 1,1′-dimethyl-4,4′-bipyridinium dichloride
Other names methyl viologen CAS RN [1910-42-5]; [2074-50-2] bis(methyl sulfate) EEC no. 217-615-7 Development codes PP148; PP910 for bis(methyl sulfate) (both ICI)

paraquat
Common name paraquat (BSI, E-ISO, (m) F-ISO, ANSI, WSSA, JMAF); no name (Germany)
IUPAC name 1,1′-dimethyl-4,4′-bipyridinediium; 1,1′-dimethyl-4,4′-bipyridinium; 1,1′-dimethyl-4,4′-bipyridylium
Chemical Abstracts name 1,1′-dimethyl-4,4′-bipyridinium
CAS RN [4685-14-7] EEC no. 225-141-7

PHYSICAL CHEMISTRY
paraquat dichloride
Composition Not normally isolated from the tech. products, which are >95% pure. Mol. wt. 257.2 M.f. C12H14Cl2N2 Form Colourless, hygroscopic crystals. M.p. Decomposes at c. 340 ºC V.p.