CH216331A - Process for the production of a sulfur dye. - Google Patents
Process for the production of a sulfur dye.Info
- Publication number
- CH216331A CH216331A CH216331DA CH216331A CH 216331 A CH216331 A CH 216331A CH 216331D A CH216331D A CH 216331DA CH 216331 A CH216331 A CH 216331A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- dye
- sulfur dye
- parts
- sulfur
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000000988 sulfur dye Substances 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000000802 nitrating effect Effects 0.000 claims description 3
- ZWWCURLKEXEFQT-UHFFFAOYSA-N dinitrogen pentoxide Inorganic materials [O-][N+](=O)O[N+]([O-])=O ZWWCURLKEXEFQT-UHFFFAOYSA-N 0.000 claims description 2
- VPUGDVKSAQVFFS-UHFFFAOYSA-N coronene Chemical compound C1=C(C2=C34)C=CC3=CC=C(C=C3)C4=C4C3=CC=C(C=C3)C4=C2C3=C1 VPUGDVKSAQVFFS-UHFFFAOYSA-N 0.000 description 6
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 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
- C09B49/00—Sulfur dyes
- C09B49/12—Sulfur dyes from other compounds, e.g. other heterocyclic compounds
- C09B49/124—Sulfur dyes from other compounds, e.g. other heterocyclic compounds from polycarbocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 213909. Verfahren zur Herstellung eines Schwefelfarbstoffes. Nach dem im Hauptpatent beschriebenen Verfahren erhält man einen Baumwolle in sehr guten, echten Tönen färbenden Farbstoff, wenn man Coronen mit schwefelnden Mitteln be handelt.
Wie nun weiter gefunden wurde, erhält man einen Farbstoff von ähnlichen Echtheits eigenschaften, wenn man Hexanitrocoronen, erhältlich durch Nitrieren von Coronen mit wasserfreier Salpetersäure bei 20 C, mit schwefelnden Mitteln behandelt.
Beispiel: 188 Teile Hexanitrocoronen, welche durch Nitrieren von 100 Teilen Coronen mit was serfreier Salpetersäure bei 20 erhalten wer den, erhitzt man mit einer aus 375 Teilen Schwefel und 1500 Teilen Natriumsulfid krist. hergestellten Polysulfidlösung mehrere Stun den unter Rückfluss. Die Temperatur der Schmelze wird nunmehr unter Abdestillieren von Wasser langsam auf<B>180'</B> gesteigert und etwa 15 Stunden auf dieser Höhe gehalten.
Man erhält etwa 1000 Teile Farbstoffroh- schmelze. Dieselbe wird in Wasser gelöst, die Lösung von etwas in wässeriger Natriumsulfid- lösung unlöslichem Rückstand durch Absaugen getrennt und der Farbstoff mit Säure gefällt. Man erhält etwa 200 Teile starken Farbstoff, der Baumwolle in schwarzbraunen Tönen an färbt.
Additional patent to main patent No. 213909. Process for the production of a sulfur dye. According to the process described in the main patent, a dye which dyes cotton in very good, genuine shades is obtained if coronene is treated with sulfurizing agents.
As has now been found further, a dye with similar fastness properties is obtained if hexanitrocorones, obtainable by nitrating coronene with anhydrous nitric acid at 20 C, are treated with sulphurizing agents.
Example: 188 parts of hexanitrocorones, which are obtained by nitrating 100 parts of coronene with water-free nitric acid at 20, are heated with a crystalline mixture of 375 parts of sulfur and 1500 parts of sodium sulfide. prepared polysulfide solution under reflux for several hours. The temperature of the melt is now slowly increased to <B> 180 '</B> while distilling off water and held at this level for about 15 hours.
About 1000 parts of raw dye melt are obtained. The same is dissolved in water, the solution is separated from some residue which is insoluble in aqueous sodium sulfide solution by suction and the dye is precipitated with acid. About 200 parts of strong dye are obtained, which dyes cotton in black-brown shades.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE216331X | 1938-12-13 | ||
| CH213909T | 1939-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH216331A true CH216331A (en) | 1941-08-15 |
Family
ID=25725528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH216331D CH216331A (en) | 1938-12-13 | 1939-11-20 | Process for the production of a sulfur dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH216331A (en) |
-
1939
- 1939-11-20 CH CH216331D patent/CH216331A/en unknown
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