DE54626C - Process for the representation of artificial indigos - Google Patents
Process for the representation of artificial indigosInfo
- Publication number
- DE54626C DE54626C DENDAT54626D DE54626DA DE54626C DE 54626 C DE54626 C DE 54626C DE NDAT54626 D DENDAT54626 D DE NDAT54626D DE 54626D A DE54626D A DE 54626DA DE 54626 C DE54626 C DE 54626C
- Authority
- DE
- Germany
- Prior art keywords
- indigos
- artificial
- representation
- water
- indigo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 235000000177 Indigofera tinctoria Nutrition 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 3
- 240000007871 Indigofera tinctoria Species 0.000 title claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 239000003518 caustics Substances 0.000 claims 1
- 230000001590 oxidative Effects 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- 229940097275 Indigo Drugs 0.000 description 5
- 241001062009 Indigofera Species 0.000 description 5
- 239000000155 melt Substances 0.000 description 3
- 229940072033 potash Drugs 0.000 description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 3
- 235000015320 potassium carbonate Nutrition 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N Chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 230000036826 Excretion Effects 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K Iron(III) chloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- QCDWFXQBSFUVSP-UHFFFAOYSA-N Phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B7/00—Indigoid dyes
- C09B7/02—Bis-indole indigos
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Das im Nachfolgenden näher beschriebene Verfahren der Indigosynthese beruht auf der Beobachtung, dafs Phenylglykokoll (Phenylamidoessigsäure C6 H~ N H~ C H~ C O O H) beim Schmelzen mit Kali oder Natron in eine Leukoverbindung übergeht, deren alkalische Lösung bei Berührung mit dem Sauerstoff der Luft alsbald Indigo abscheidet.The process of indigo synthesis described in more detail below is based on the observation that phenylglycoll (phenylamidoacetic acid C 6 H ~ NH ~ CH ~ COOH), when melted with potash or soda, turns into a leuco compound, the alkaline solution of which is immediately indigo on contact with the oxygen in the air separates.
Zur Ausführung erhitzt man ein Gemenge von ι Theil Phenylglykokoll, welches nach bekannter Methode aus Monochloressigsäure und Anilin gewonnen wird (Ber. d. d. eh. Ges. X, S. 2047), mit 2-Theilen trockenem Aetzkali bei möglichst vollständigem Luftabschlufs, z. B. in einer Retorte, zum Schmelzen und steigert die Temperatur auf ca. 2600. Unter Aufschäumen und Dampfentwickelung färbt sich die Schmelze tief orangegelb. Rascher wird dieser Punkt erreicht, wenn man die Temperatur weiter auf 300 oder 3500 steigert. Die angegebene Menge Kali braucht nicht streng festgehalten zu werden, man kann etwas weniger, aber auch, 'mehr Kali verwenden und wird zu demselben Resultat kommen, nur die Ausbeute an Indigo wird dadurch beeinflufst. Während der Schmelzoperation werden Proben genommen und in Wasser gebracht. Vermehrt sich die bei Luftzutritt momentan stattfindende Indigoausscheidung nicht weiter, so läfst man die Schmelze erkalten und löst sie in Wasser, während gleichzeitig ein Luftstrom eingeleitet wird.For execution by heating a mixture of ι part Phenylglykokoll, which is obtained by a known method from monochloroacetic acid and aniline 2 (Ber dd eh Ges X, p 2047th..) - dry parts caustic potash when fully possible Luftabschlufs, z. B. in a retort, for melting and increases the temperature to approx. 260 0 . The melt turns a deep orange-yellow with foaming and the development of steam. This point is reached more quickly if the temperature is increased further to 300 or 350 0 . The stated amount of potash does not need to be strictly adhered to, one can use a little less, but also 'more potash' and will arrive at the same result, only the yield of indigo is influenced by it. During the melting operation, samples are taken and placed in water. If the indigo excretion currently taking place when air is admitted does not increase any further, the melt is allowed to cool down and dissolved in water while an air stream is introduced at the same time.
Der abgeschiedene Indigo wird abfiltrirt, zuerst mit Wasser, dann mit salzsäurehaltigem Wasser, und zuletzt mit Alkohol ausgewaschen und getrocknet.The deposited indigo is filtered off, first with water, then with hydrochloric acid Water, and finally washed out with alcohol and dried.
Statt des Phenylglykdkolls können natürlicherweise auch dessen Salze und Aether verwendet werden, da sie beim Schmelzen mit Alkalien ebenso wie das Phenylglykokoll selbst in dessen Alkalisalz übergehen.Instead of the phenyl glycol, its salts and ethers can of course also be used because they melt with alkalis just like the phenylglycocoll itself pass into its alkali salt.
Das Aetzkali kann mit gleichem Erfolg auch durch Aetznatron ersetzt werden, und anstatt die Oxydation'der in der Schmelze enthaltenen Leukoverbindung durch den Luftsauerstoff zu bewirken, kann man auch Oxydationsmittel, wie Eisenchlorid u. s. w., anwenden; die Luft wirkt aber besser und billiger.The caustic potash can be replaced by caustic soda with the same success, and instead the oxidation of the leuco compound contained in the melt by the oxygen in the air effect, you can also use oxidizing agents such as ferric chloride and so on; the air but works better and cheaper.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE54626C true DE54626C (en) |
Family
ID=329208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT54626D Expired - Lifetime DE54626C (en) | Process for the representation of artificial indigos |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE54626C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6913643B2 (en) * | 2003-02-18 | 2005-07-05 | Integrated Environmental Technologies, Llc | Lightweight foamed glass aggregate |
-
0
- DE DENDAT54626D patent/DE54626C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6913643B2 (en) * | 2003-02-18 | 2005-07-05 | Integrated Environmental Technologies, Llc | Lightweight foamed glass aggregate |
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