TABLE I S Colour dcrcloped nccording to Colo'a method using 0.059 tng. of chloroform. 1 m1. of thc colourcd solution nintched) nun. R. B. Brigh tncss 6 10.1 1.0 3.0 20 9.1 0.9 3.0 30 8.2 0.9 3.0 120 7.3 0.8 3.0 Timo nfter sopnr@ion, Tiiitonicter rcndings nir current is dilute hydrochloric ncid (cf. Fujiwnrn, loc. c k ) . d stniidnrd solution of cliloroforni wns iiinde by brenkiiig n glnss nnipoule contnining a weiplictl qunntity of chloroform in n 1-litre flnsk nenrly filled with 0 . 0 3 ~hydrochloric ncid, nnd subsequently diluting to the mnrk. By using the niethod described nbore for cnrboii tetrncliloride tlic following results were obtnined in the cnse of chloroforiii :
TABLE S (Using 20 nil. of pyridinc nntl 25 nil. of tho colourcd Inyer CHCI,, seprntion Tintometer rcn&igs 0.000 15 niin. 17.0 2.0 3.0 o.oa0 hhoura 17.9 2.0 3.0 0.000 ?? ,, 17.9 2.0 3.0 0.030 10min. 11.0 2.0 2.0 0.030 1 hour 30 min. 11.0 2.0 2.0 0.030 22llOUra 11.0 2.0 2.0 . . for niatching) Amount of Tinic nfter lug. 11. 13.
Brightness
The resiilts iiidicnte tlint the snnie procedure is npplicnble in the cnse of cliloroforni..
The coloiir (red) procluced, when plottcd ngninst tho qunntity of chloroform, sliowcd ii strnight-line relntionship. (Tnble XI.) TAnLE XI (Dinmeter of tube 1 a4 cui.) Lovibond units (Cotupnrutor) Chloroforni, Ulg. 11. u. 0.03 1.25 -0.00 1.U -0.12 3.5 0.2 0.18 5.0 0.40 0.24