III. SPECIAL COLLECTIONS. 



COLLECTION OF PREPARATIONS RESULTING FROM TECHNICAL AND 

 SCIENTIFIC RESEARCH. CONTRIBUTED BY MEMBERS OF THE 

 GERMAN CHEMICAL SOCIETY. (The names of the members are 

 given below their contributions). 



2677. 



1. Anthracene. 



2. Anthraquinone. 



3. Dinitrobenzene. 



4. Eosine potassium. 



5. Methyl Violet. 



6. Eubin (Rosanilinchlorhydrate). 



7. Benzylchloride. 



8. Aniline. 



9. Hydrochlorate of Safrauine. 



10. Hofmann's Violet (Iodine 



Violet). 



11. Toluene. 



12. Coralline (Ammonium-rosolate). 



13. Nitrobenzene. 



14. Aurine (Rosolic acid). 



15. Phenylene Brown. 



16. Azobenzol. 



17. Phosphine (Nitrate of Chrysani- 



line). 



18. Nitronaphthaline. 



19. Picric acid. 



20. Diphenylamine. 



21. Rosanilinbase. 



23. Nitrotoluene, solid. 



24. Phtalic acid. 



25. Toluidine, liquid. 



26. Aniline Blue, soluble (Sodium- 



triphenylrosaniline-sulfate) . 



27. Toluidine, crystallized. 



28. Phenol, crystallized. 



29. Dimethylaniline. 



30. Aniline Blue (Triphenylrosaniline- 



chlorhydrate). 



31. Marti us Yellow (Dinitronaphthol- 



calcium). 



32. Dinitrocresol potassium. 



33. Benzene, crystallized. 



34. Naphtol. 



35. Naphtylamine. 



36. Methyldiphenylamine. 



37. Naphtalene. 



38. Aurantia. 



39. Nigrosin, soluble in spirits. 



40. Nigrosin, soluble in water. 



41. Magdala-Red. 



42. Mauve. 



43. Cresol. 



22. Methyl Green, crystallized. 



The compounds are intended for illustrating the present state of the coal- 

 tar colour manufacture, and the above collection embraces all the preparations 

 of this class manufactured at present. 



Actien- Gesellschaft fur Anilinfabrikation, Rummelsburg, 

 near Berlin. 



(CH* 

 Monochlorcresol C 5 H-M 01 .__ -. 



I OH <Fusmg point 56,) 



Mesitol C 6 H 2 (CH 3 ) 3 OH. (Fus. p. 68-69.) 

 Nitronaphtol-Potassium C 10 H 6 (NCH) OK. 

 Nitronaphtol- Sodium C 10 H 6 (NO 2 )ONa + 2H 2 O. 

 Nitronaphtol-Barium [C 10 H 6 (N0 2 )G] 2 Ba + H 2 0. 

 Nitronaphtol-Lead [C'H 6 (NO 2 ) O] 2 Pb. 

 Bibromnaphtol C 10 H 5 Br 2 (UH). (F. p. 111 .) 

 Mononitrophenylendiamine C 6 H 3 (NO 2 ) (NH 2 ) 2 . 



Magnesium-platino-cyanide 



Mg Pt (CN) 4 



Magnesium carbonate (crystallised). 

 Benzomonochloride C 6 H 5 CH 2 C1. 

 Benzodichloride C 6 H 5 CHC1 2 . 

 Benzotrichloride C C H 5 CC1 3 . 

 Monochlortoluol C 6 H 4 C1CH 3 . 

 Monochlorbenzylchloride 



C 6 H 4 C1CH 2 C1. 



Dr. jRud. Biedermann, Berlin. 



Beuzylsulphhydrate C 6 H 5 CH 2 SH. 



Benzylsulphide (CgHgCH^S. 



Mercury-Benzylsulphide 



(C 6 H 5 CH 2 S) 2 Hg. 



Benzylsulphoxyde (C 6 H 5 CH 2 ) 2 SO. 



Benzylsulphoxyde and very remark- 

 able from their different power of 

 crystallization. 



Disulphobenzyle (C 6 



