DE94855C - - Google Patents
Info
- Publication number
- DE94855C DE94855C DENDAT94855D DE94855DA DE94855C DE 94855 C DE94855 C DE 94855C DE NDAT94855 D DENDAT94855 D DE NDAT94855D DE 94855D A DE94855D A DE 94855DA DE 94855 C DE94855 C DE 94855C
- Authority
- DE
- Germany
- Prior art keywords
- parts
- solution
- gray
- diethylsafranine
- blue
- 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.)
- Active
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- SQYNKIJPMDEDEG-UHFFFAOYSA-N Paraldehyde Chemical compound CC1OC(C)OC(C)O1 SQYNKIJPMDEDEG-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 229960003868 paraldehyde Drugs 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- OARRHUQTFTUEOS-UHFFFAOYSA-N Safranin Chemical compound [Cl-].C=12C=C(N)C(C)=CC2=NC2=CC(C)=C(N)C=C2[N+]=1C1=CC=CC=C1 OARRHUQTFTUEOS-UHFFFAOYSA-N 0.000 description 1
- VXMKYRQZQXVKGB-CWWHNZPOSA-N Tannin Chemical compound O([C@H]1[C@H]([C@@H]2OC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)O[C@H]([C@H]2O)O1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 VXMKYRQZQXVKGB-CWWHNZPOSA-N 0.000 description 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L Zinc chloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- KDFQYGBJUYYWDJ-UHFFFAOYSA-N azane;sodium Chemical compound N.[Na] KDFQYGBJUYYWDJ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 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
- C09B17/00—Azine dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
3iüCi ill] \%nv 3iüCi ill] \% nv
HESHES
PATENTAMPATENTAM
In weiterem Verfolg des durch das Haupt-Patent Nr. 94238 geschützten Verfahrens wurde gefunden, dafs, falls an Stelle von Paraldehyd Formaldehyd mit as-Dimethylsafranin oder as-Diäthylsafranin in stark mineralsaurer Lösung condensirt und das Condensationsproduct nachher oxydirt wird, werthvolle graue Farbstoffe erhalten werden, welche sich durch grofse Echtheit gegen Seife und Alkali auszeichnen.In the further pursuit of the process protected by the main patent no found that if formaldehyde was substituted for paraldehyde with as-dimethylsafranine or as-diethylsafranine condensed in strongly mineral acid solution, and the condensation product is afterwards oxidized, valuable gray dyes which are distinguished by great fastness to soap and alkali.
I. 100 Theile as-Dimethylsafranin, 200 Theile concentrirte Salzsäure und 100 Theile Formaldehyd (40 pCt.) werden auf dem Wasserbade bis zum Verschwinden der Safraninreaction erhitzt. Die grünlich schwarze Lösung wird mit viel kochendem Wasser verdünnt und mit einer Lösung von 28 Theilen Bichromat oxydirt, die filtrirte blaugraue Lösung alsdann mit Chlorzink gefällt.I. 100 parts as-dimethylsafranine, 200 parts concentrated hydrochloric acid and 100 parts formaldehyde (40 per cent.) are placed on the water-bath heated until the safranine reaction disappears. The greenish black solution will diluted with plenty of boiling water and oxidized with a solution of 28 parts of bichromate, the filtered blue-gray solution then precipitated with zinc chloride.
II. 100 Theile as-Diäthylsafranin, 200 Theile concentrirte Salzsäure und 100 Theile Formaldehyd werden genau nach I. behandelt und aufgearbeitet.II. 100 parts as-diethylsafranine, 200 parts concentrated hydrochloric acid and 100 parts formaldehyde are treated exactly as described in I. and worked up.
Beide so erhaltenen Farbstoffe lösen sich in concentrirter Schwefelsäure grün, auf Zusatz von Wasser blau werdend. In Aether ganz, in Alkohol kaum löslich, lösen sich dieselben in Wasser leicht, das Dimethylderivat mit schmutzig rother, das Diäthylderivat mit blaugrüner Farbe. Die wässerige Lösung von I. wird von essigsaurem Natron, Ammoniak und Alkali sofort und vollständig in rotben Flocken gefällt. Mineralsäuren fällen die Lösung blaugrau. Die' wässerige Lösung von II. wird durch essigsaures Natron nicht, dagegen durch Ammoniak und Alkalien gefällt, ebenso auf Zusatz von Mineralsäuren.Both dyes thus obtained dissolve green in concentrated sulfuric acid, upon addition turning blue from water. They dissolve completely in ether, hardly soluble in alcohol easy in water, the dimethyl derivative with dirty red, the diethyl derivative with blue-green color. The aqueous solution of I. is made up of sodium acetate, ammonia and alkali immediately and completely precipitated in red flakes. Mineral acids precipitate the solution blue-gray. The 'aqueous solution of II. Is not made by sodium acetate, but by Ammonia and alkalis are precipitated, as well as the addition of mineral acids.
Farbstoff I färbt tannirte Baumwolle rothgrau, Dye I dyes tannin cotton red-gray,
Farbstoff II giebt ein reines neutrales Grau.Dye II gives a pure, neutral gray.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE94855C true DE94855C (en) |
Family
ID=366153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT94855D Active DE94855C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE94855C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6456216B2 (en) | 1999-10-28 | 2002-09-24 | The National University Of Singapore | Method and apparatus for generating pulses from analog waveforms |
| US6456221B2 (en) | 1999-10-28 | 2002-09-24 | The National University Of Singapore | Method and apparatus for signal detection in ultra wide-band communications |
| US6476744B1 (en) | 2001-04-13 | 2002-11-05 | The National University Of Singapore | Method and apparatus for generating pulses from analog waveforms |
| US6498572B1 (en) | 2001-06-18 | 2002-12-24 | The National University Of Singapore | Method and apparatus for delta modulator and sigma delta modulator |
| US6650268B2 (en) | 1999-10-28 | 2003-11-18 | The National University Of Singapore | Method and apparatus for a pulse decoding communication system using multiple receivers |
| US6724269B2 (en) | 2002-06-21 | 2004-04-20 | Cellonics Incorporated Pte., Ltd. | PSK transmitter and correlator receiver for UWB communications system |
-
0
- DE DENDAT94855D patent/DE94855C/de active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6456216B2 (en) | 1999-10-28 | 2002-09-24 | The National University Of Singapore | Method and apparatus for generating pulses from analog waveforms |
| US6456221B2 (en) | 1999-10-28 | 2002-09-24 | The National University Of Singapore | Method and apparatus for signal detection in ultra wide-band communications |
| US6650268B2 (en) | 1999-10-28 | 2003-11-18 | The National University Of Singapore | Method and apparatus for a pulse decoding communication system using multiple receivers |
| US6476744B1 (en) | 2001-04-13 | 2002-11-05 | The National University Of Singapore | Method and apparatus for generating pulses from analog waveforms |
| US6498572B1 (en) | 2001-06-18 | 2002-12-24 | The National University Of Singapore | Method and apparatus for delta modulator and sigma delta modulator |
| US6724269B2 (en) | 2002-06-21 | 2004-04-20 | Cellonics Incorporated Pte., Ltd. | PSK transmitter and correlator receiver for UWB communications system |
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