Anthracen, tr. and ed. by W. Crookes1877 |
Des de l'interior del llibre
Resultats 1 - 5 de 40.
Pàgina xii
... Robiquet and Colin's method · 195 . 196 Runge's method 196 • Method of Debus . 197 E. Kopp's method Action as a dye . 197 . 199 Purpuramid , or purpurein Triethylpurpurin Hydrate of purpurin Isopurpurin ( xii CONTENTS .
... Robiquet and Colin's method · 195 . 196 Runge's method 196 • Method of Debus . 197 E. Kopp's method Action as a dye . 197 . 199 Purpuramid , or purpurein Triethylpurpurin Hydrate of purpurin Isopurpurin ( xii CONTENTS .
Pàgina xiii
Gustav Auerbach sir William Crookes. Purpuramid , or purpurein Triethylpurpurin Hydrate of purpurin Isopurpurin ( Perkin's anthrapurpurin ) Flavopurpurin • Oxychrysazin Tetraoxyanthraquinons Pseudopurpurin Anthrachryson Rufiapin ...
Gustav Auerbach sir William Crookes. Purpuramid , or purpurein Triethylpurpurin Hydrate of purpurin Isopurpurin ( Perkin's anthrapurpurin ) Flavopurpurin • Oxychrysazin Tetraoxyanthraquinons Pseudopurpurin Anthrachryson Rufiapin ...
Pàgina 48
... hydrate of potassa is added . The colourless mass is immediately converted into yellow tetrabromanthracen , with a great in- crease of volume . In its properties it agrees with Ander- son's tetrabromanthracen , except that he states its ...
... hydrate of potassa is added . The colourless mass is immediately converted into yellow tetrabromanthracen , with a great in- crease of volume . In its properties it agrees with Ander- son's tetrabromanthracen , except that he states its ...
Pàgina 71
... hydrate of soda ; but orange red needles are left behind , completely similar to alizarin in their external properties , but distinguished by their insolubility in caustic alkalis . With zinc - powder and hydrate of soda they give the ...
... hydrate of soda ; but orange red needles are left behind , completely similar to alizarin in their external properties , but distinguished by their insolubility in caustic alkalis . With zinc - powder and hydrate of soda they give the ...
Pàgina 77
... hydrate only acts upon it at temperatures above 200 ° . Alizarin is then formed according to the subjoined equation , and combines with two molecules of potassa to alizarate of potassa : C11H ̧Br2 ( O2 ) " ' + 2KHO = C12H ( HO ) 2 ( O2 ) ...
... hydrate only acts upon it at temperatures above 200 ° . Alizarin is then formed according to the subjoined equation , and combines with two molecules of potassa to alizarate of potassa : C11H ̧Br2 ( O2 ) " ' + 2KHO = C12H ( HO ) 2 ( O2 ) ...
Frases i termes més freqüents
acetic ether alcohol alcoholic solution alizarin alkali ammonia anthra anthracen anthracendihydride anthraflavic acid anthraquinon aqueous solution baryta barytic salt benzol bibromanthracen bisulphide of carbon blue bromine brown cent Centralblatt Chem chloride chromic acid chrysammic acid chrysophanic acid cold colouring matter compound concentrated sulphuric acid converted Crown 8vo crystallisation from alcohol crystals decomposed deposited deutsch dilute dinitroanthraquinon dissolves distillation dried Edition ether evaporation filtered filtrate flocks formation formed formula Gesellsch glacial acetic acid Graebe and Liebermann grms heated hydrate of potassa hydriodic acid hydrocarbon hydrochloric acid hydroxyls insoluble isopurpurin lime liquid madder mass melting melting-point methylanthracen mixture mordants naphthalin nitric acid obtained oxidation oxidising agents oxyanthraquinon Pharm phthalic acid potash powder precipitate purified purpurin quinon reaction readily soluble red colour residue Schunck Schützenberger soda soluble in alcohol soluble in water sparingly soluble sublimes substance sulpho-acids sulphuric acid temperature tion whilst Woodcuts yellow colour yellow needles yields
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