File:Polytechnisches journal (1820) (14781767334).jpg

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

Original file (2,848 × 1,804 pixels, file size: 332 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
English:

Identifier: polytechnischesj225stut (find matches)
Title: Polytechnisches journal
Year: 1820 (1820s)
Authors:
Subjects: Technology Industrial arts Engineering
Publisher: Stuttgart : J.G. Cotta'schen Buchhandlung
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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:
jen, 3^ot)eifen unb f^miebbarem ©ifen eine oom 3Serein jurS3eförberung beS ©etnerbfleifeeS preiSgefrönte längere Slrbeit geliefert,bie in ben SSer^anblungen biefeS 33ereinS, 1877 @. 267 bis 277 ah-gebrucEt ift unb ineld^er Sleferent folgenbeS entnimmt. S)a an eine mafe=analptifd^e ^eftimmung ber ^^olpl^orfäure in einer ©ifenlöfung tüo^lniemals ju benfen ift, fo mirb bie einfac^fte 2lrt ber ^l^oSpl^orbeftimmungba^in ju ftreben ^aben, ba^ nad^ bem Sluflöfen beS ©ifenS unb 2lb=fd^eiten ber unlöSlid^en 33eftanbt^eile burd^ Filtration bie ^^oSp^or^fäure im ^^-iltrat birect in einer folc^en §orm gefällt mirb, öaß bererl^altene 9iieberfd;lag nai^ bem SCrocfnen eine conftante 3nfammenfe^ung^at. 3)ieS ift bisher nur üon @gger^ (1860 158 290. 1875 218492. 1877 223 73) erftrebt tporben, n)ä^renb nad^ ben übrigen 3)ie^tboben bie ^^oSp^orfäure erft auS ber ©ifenlöfung abgef(^ieben unbbann gefällt ioirb. ^a6) Ä 0 r f d^ e 11 leibet baS @gger;fd^e 3Serfa§ren nod^ an einigen
Text Appearing After Image:
SePimmung be8 ^^oSp^or? in (Sifenerjen unb im <Sifen. 161 Uniiollfommenl^citen, bie feine 2lntoenbung in ber S^ed^ni! erfd^weren.2)a§ Slbbampfen ber ©ifenlöfung, bal StrodEnen be§ p^olpl^ormolpbbän--fauren SlmmonS bei 95° finb jeitraubenb, bie 3^^^^ß^iß;^9 ^^^3Rieber(c^lage§ ift nid^t conftant, »eil, irie bereite Sipotoil (^oggen^borffl annalen, 1860 S3b. 109 ©. 135) bemerft, bur^ bie Wmxahfäuren ba§ moipbbänfaure 2lmmon beim 33erbünnen jerlegt unb foein 2;i^eil ber 3)ioIpbbänfäure mit aulgefc^ieben tt)irb. Sipon)i; fe^tjur SSermeibung biefeö Uebelj^anbei SBeinfäure gu unb trocknet ben91ieberfc^lag jur 33ermeibung be§ 2lmmonia!DerIufie0, ber bereits unter100^ eintritt, bei 21 bi§ 30*^ im @yficcator über ©d^tüefelfäure. ^or--fd^elt fäüt nun bie ^^oSpl^orfäure mit einer moipbbänfauren Äali=löfung unb fann ba^er ben erhaltenen Siieberfd^lag bei Temperaturenüber 100* trodfnen. 3ur ^erjleUung biefer 33iol9bbänfäureIöfung »erben 2 SÜ^. ^Diol^bbän-fü

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/14781767334/

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.
Flickr tags
InfoField
  • bookid:polytechnischesj225stut
  • bookyear:1820
  • bookdecade:1820
  • bookcentury:1800
  • booksubject:Technology
  • booksubject:Industrial_arts
  • booksubject:Engineering
  • bookpublisher:Stuttgart___J_G__Cotta_schen_Buchhandlung
  • bookcontributor:NCSU_Libraries
  • booksponsor:NCSU_Libraries
  • bookleafnumber:187
  • bookcollection:americana
Flickr posted date
InfoField
30 July 2014



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@N07/14781767334. It was reviewed on 23 August 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

23 August 2015

File history

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

Date/TimeThumbnailDimensionsUserComment
current20:02, 24 August 2015Thumbnail for version as of 20:02, 24 August 20152,848 × 1,804 (332 KB)SteinsplitterBot (talk | contribs)Bot: Image rotated by 90°
16:47, 23 August 2015Thumbnail for version as of 16:47, 23 August 20151,804 × 2,862 (336 KB) (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Identifier''': polytechnischesj225stut ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Fpolytechnischesj225stut%2F f...

There are no pages that use this file.