ANALYTICAL CHEMISTRY
1974 Estimation of N-Chlorosuccinimide. A 0.5% N-chlorosuccinimide solution is freshly prepared; 1 ml. of this solution contains 5 mg. of N-chlorosuccinimide. Volume Taken, RI1
Present, .\I g
50 40 30
250 200
Found, Mg. 2%. 82 200.02 148.91 123.8 100.02 49.42
1.50 125 100 50
25 20 10
Erlol. c
1 0 0 0 0 1
2 01 72 ufi 02 16
CALCULATION
N-Bromosuccinimide : NQS203, ml. X N Xa2S208 X 0.040 = grams of bromine X&SzOa, ml. X N Na2S203X 0,089 = grams of N-bromosuccinimide AT-Chlorosuccinimide: r\’a&03, ml. X N Xa2S2O3X 0.0178 = grams of chlorine Iia&&, ml. X N r\Ta&o3 X 0.0668 = grams of N-chlorosuccinimide
evaporating the solution in vacuo and crystallizing the solid residue from benzene and has been identified by melting point, 125’ C. and mixed melting point with an authentic sample. In this respect N-halogenated imides resemble peroxides and organic hypohalides (5)-e.g., the iodoso compounds which are quantitatively reduced to iodo compounds in aqueous acid, by added iodides and the free iodine, can be titrated. CsHjIO
+ + +RSK
RIi-
+ + I
