A Dictionary of the Coal Tar Colours

acetic acid acid baths acid turns ACTIENGESELLSCHAFT alizarine alkalies alumina aniline Anthracene aqueous solution aqueous solution gives aqueous solution throws aqueous solution turns B-naphthylamine BADISCHE BAYER benzene Benzidine blue precipitate blue solution bluish red boiling brown powder brown precipitate caustic soda gives caustic soda turns chloric acid colouring matter crimson solution diluting with water Dyes cotton Dyes wool easily soluble English Patent Eosin Erythrosine fairly fast fast to acids fast to light fast to soaping flocculent greenish Hydro Hydrochloric acid added Induline insoluble magenta Mauveine moderately fast monosulphonic acid mordanted naphthol neutral baths nitric acid obtained by diazotising orange phenol phuric acid Ponceau precipitate is obtained red solution salt bath scarlet solution shades silk in acid slightly soluble solu soluble in alcohol soluble in cold soluble in strong soluble in water strong sulphuric acid sulphonic tannin toluidine turns the colour violet solution water this turns wool and silk wool in acid