File:Muller titration of indigo (Alessandri 1895.52).png
Original file (2,768 × 3,989 pixels, file size: 105 KB, MIME type: image/png)
Captions
Summary
[edit]DescriptionMuller titration of indigo (Alessandri 1895.52).png |
Italiano: Per la determinazione dell'indaco si pone in un pallone B una soluzione di indaco in acido solforico, scaldando all'ebollizione per rimuovere l'aria. Tramite la bottiglia D si genera anidride carbonica (ad esempio con HCl e marmo) che viene lavata in una bottiglia C per rimpiazzare l'aria nel pallone B ed escludere l'ossigeno atmosferico. A questo punto si titola l'indaco tramite la buretta A con una soluzione di ditionito fino a decolorazione e mantenendo la temperatura sui 100°C.
English: To determine the indigo content of a dye, in a round-bottom flask B is placed a sulphuric solution of indigo, boiled to remove air from the system. Bottle D is used to generate a stream of carbon dioxide (e.g. with acid and marble) which is then washed in bottle C and used to exclude oxygen from the apparatus. Now, the indigo solution is titrated while at around 100°C with a dithionite solution from A until colourless. |
Date | |
Source | Alessandri, P. E. Analisi Volumetrica Applicata Ai Prodotti Commerciali e Industriali; Ulrico Hoepli: Milano, 1895. |
Author | valeg96 |
Licensing
[edit]Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 19:59, 31 August 2020 | 2,768 × 3,989 (105 KB) | Valeg96 (talk | contribs) | Uploaded a work by valeg96 from Alessandri, P. E. Analisi Volumetrica Applicata Ai Prodotti Commerciali e Industriali; Ulrico Hoepli: Milano, 1895. with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
File change date and time | 19:47, 24 August 2020 |
---|