File:Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie (1892-1911.) (20232438628).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description
English:

Title: Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie
Identifier: buletinulsocieta19soci (find matches)
Year: 1892-1911. (1890s)
Authors: Societatea de Stiinte din Bucuresti
Subjects: Science
Publisher: Bucuresti : Societatea
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: American Museum of Natural History Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
BULETINUL SOCIETĂŢII DE ŞTIINŢE 3ir, rece s"a arătat mai înainte că după proprietăţile lui şi ale ftalimidei întrebuinţate de Rothemburg, constituţia simetrică este singură ad- misibilă în cazul de faţă. încercări pentru a prepara derivaţi naftalici de natură analoagă, au fost făcute numai cu anhidrida naftalică şi fenilhidrazina de că- tre Georges Jaubert '•), obţinând astfel anilnaftalamida numită de dânsul naftalfenilhidrazona: N—NH.CoHs
Text Appearing After Image:
Această substanţă el o prepară încălzind la 1700 timp de o oră, amestecul echimolecular de anhidridă naftalică şi fenilhidrazina. Ea se prezmtă în cristale aciculare galbene, fus. la 218^,5, solubile în benzen, cloroform, acid acetic, puţin solubile în alcool şi eter eti- lic, insolubile în apă. Prin acţiunea clorurei de acetil Jaubert a pre- parat derivatul acetilat corespunzător sub forma de cristale albe fus. la 2300, iar cu clorura de benzoil, derivatul benzo;lat în cris- tale albe ce se topesc la 2350. * * Frâ interesant de a studia acţiunea hidrazinei nesubstituite asu- pra anhidridei naftalice şi a naftalimidei, de oarece era de prevă- zut că aceste două substanţe ar trebui să dea naştere la acelaş produs de condensare, având un singur atom de azot în ciclu, iar nu două hidrazide de isomere cum se obţine din derivaţii ftalici analogi. Prevederea aceasta erâ justificată prin faptul că din cele două cicluri azotate posibile, cari rezultă prin această condensare, acela cu un singur atom de azot fiind hexagonal ar avea o stal >î!i- tate mult mai mare decât acela heptagonal cu ambii atomi de a/.ot în ciclu. Sfătuit fn'n 1 de d. Dr. A. Ostrogovicb să verific această preve- sa studiez produsul acestor reacţiuni, am inti sub con 1-sale lucrarea de faţă. ', Bei z», pag. 360

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Date
Source

https://www.flickr.com/photos/internetarchivebookimages/20232438628/

Author Internet Archive Book Images
Permission
(Reusing this file)
At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Volume
InfoField
1910
Flickr tags
InfoField
  • bookid:buletinulsocieta19soci
  • bookyear:1892-1911.
  • bookdecade:1890
  • bookcentury:1800
  • bookauthor:Societatea_de_Stiinte_din_Bucuresti
  • booksubject:Science
  • bookpublisher:Bucuresti_Societatea
  • bookcontributor:American_Museum_of_Natural_History_Library
  • booksponsor:American_Museum_of_Natural_History_Library
  • bookleafnumber:353
  • bookcollection:americanmuseumnaturalhistory
  • bookcollection:biodiversity
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
9 August 2015



Licensing[edit]

This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
  1. The copyright is in the public domain because it has expired;
  2. The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
  3. The institution owns the copyright but is not interested in exercising control; or
  4. The institution has legal rights sufficient to authorize others to use the work without restrictions.

More information can be found at https://flickr.com/commons/usage/.


Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/20232438628. It was reviewed on 21 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

21 September 2015

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current18:07, 21 September 2015Thumbnail for version as of 18:07, 21 September 2015336 × 250 (15 KB) (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Title''': Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie<br> '''Identifier''': buletinulsocieta19soci ([https://comm...

There are no pages that use this file.