ANNEXU.K.DETERMINATION OF DICHLOROMETHANE AND 1,1,1-TRICHLOROETHANE
QUANTITATIVE DETERMINATION OF TOSYLCHLORAMIDE SODIUM (INN)(CHLORAMINE-T)U.K.
6.PROCEDUREU.K.
6.2. Extraction U.K.
6.2.1.Take 30 ml of the filtrate and extract three times with 15 ml of diethyl ether (4.4). If necessary dry the ethereal phases and collect them in a 50 ml graduated flask. Make up with diethyl ether (4.4).U.K.
6.2.2.Take 25 ml of the dried ethereal extract and evaporate to dryness in a nitrogen stream. Redissolve the residue with 1 ml of ethanol (4.5).U.K.