. Official and provisional methods of analysis. low, Ponceau, Bor-deaux, and Congo red. Class II. Indogenide and imido-quinone coloringmatters, methyleneblue, safranin, indi-go-carmine. Decolorization or a pre-cipitate. Imido -car-bo-quinone coloringmatters. Class III. Amido - derivatives ofdi and triphenyl-me-tnane, auramines,acridines, quinolines,and color derivativesof thio benzenil. Fuchsin, rosaniline, au-ramine. No precipitation. Liq-uid becomes more col-ored. Oxy-carbo-qui-none coloring matters. Class rv. Nonamide dip hen yl-methane. oxy-ketone,and most of naturalorganic coloring mat-te
. Official and provisional methods of analysis. low, Ponceau, Bor-deaux, and Congo red. Class II. Indogenide and imido-quinone coloringmatters, methyleneblue, safranin, indi-go-carmine. Decolorization or a pre-cipitate. Imido -car-bo-quinone coloringmatters. Class III. Amido - derivatives ofdi and triphenyl-me-tnane, auramines,acridines, quinolines,and color derivativesof thio benzenil. Fuchsin, rosaniline, au-ramine. No precipitation. Liq-uid becomes more col-ored. Oxy-carbo-qui-none coloring matters. Class rv. Nonamide dip hen yl-methane. oxy-ketone,and most of naturalorganic coloring mat-ters. Eosines, aurin, alizarin. a Schultz and Julius, Tabellarische Ubersicht der kiinstlichen organischen Farbstoffe ;Allen, Commercial Organic Analysis, 3d ed., 3 (1): 529-565. COLORING MATTER. 195 * * ^ pq < N Q 1 O 5 §9 § ba H 0 .s % s ^c ft 5 £ o H ■§ « P V H Q O S3 P Q n s ^ II d 7i ^ 1 £~ S c3 O -4 S 5 3 3 bh o ft 6 C S3 <—*-* r--^ P do da V V £ & i] h i ii o o ¥a O 03. p * « ^ O «M O^J lllllll§l8p § £ £ ^5 £.g £§ £ 8 £ p* ciq Cm sq cS sagc o o o o o
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1912
