AT95313B - Process for the preparation of a dye from dioxyperylene. - Google Patents
Process for the preparation of a dye from dioxyperylene.Info
- Publication number
- AT95313B AT95313B AT95313DA AT95313B AT 95313 B AT95313 B AT 95313B AT 95313D A AT95313D A AT 95313DA AT 95313 B AT95313 B AT 95313B
- Authority
- AT
- Austria
- Prior art keywords
- dioxyperylene
- dye
- preparation
- sulfur
- desc
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 239000011593 sulfur Substances 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 238000001226 reprecipitation Methods 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000000975 dye Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 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
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000000988 sulfur dye Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Coloring (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung eines Farbstoffes ans Dioxyperylen.
Die Erfindung betrifft die Darstellung eineq Farbstoffes aus Dioxyperylen und besteht im wesentliche, darin, dass in Dioxyperylen Schwefel eingeführt wird.
Bei folgendem Ausfuhrrngsbeispiel erhält man einen schwarzen, auch ans der Küpe färbenden Schwefelfarbstoff.
1 Gewichtsteil Dioxyperylen (1, 12) wird mit 1 Gewichtsteil Natriumsulfid und 2 Gewichtsteilen Schwefel geschmolzen und durch einige Zeit, etwa eine halbe Stunde, auf 200-3000 C erhitzt. Die Schmelze wird mit Wasser ausgelaugt, t nd der Farbstoff bleibt als schwarzes Pelver zurück und kann durch Umfällen : n's Natriumsulfid gereinigt werden. Der neue Farbstoff ist in konzentrierter Schwefelsäure in der Wärme
EMI1.1
Die Einfiihl'11ng von Schwefel in das Dioxyperylen
EMI1.2
kann durch irgendwelche der für die Schwefel ng üblichen Methoden erfolgen.
Die Farbe ist derart säureecht, dass selbst ziemlich konzentrierte Salzsäure nichts von der Farbe löst oder an der Farbe ändert. Ebenso ist sie alkaliecht, lichtecht und indifferent gegen Natiinm- hypochloritlösung.
PATENT-ANSPRÜCHE :
1. Verfahren zur Darstellung eines Farbstoffes aus Dioxyperylen, dadurch gekennzeichnet, dass Dioxyperylen mit Schwefel oder alkalischen Schwefelverbindungen, oder Alkalihydroxyd und Schwefel erhitzt wird.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of a dye on dioxyperylene.
The invention relates to the preparation of a dye from dioxyperylene and essentially consists in introducing sulfur into dioxyperylene.
In the following exemplary embodiment, a black sulfur dye is obtained which also stains the vat.
1 part by weight of dioxyperylene (1, 12) is melted with 1 part by weight of sodium sulfide and 2 parts by weight of sulfur and heated to 200-3000 ° C. for some time, about half an hour. The melt is leached with water, and the dye remains as a black pelver and can be purified by reprecipitation: n's sodium sulfide. The new dye is in concentrated sulfuric acid in the heat
EMI1.1
The Influence of Sulfur in Dioxyperylene
EMI1.2
can be done by any of the usual methods for sulfur ng.
The color is so acid-fast that even fairly concentrated hydrochloric acid does not dissolve or change the color. It is also alkali-proof, lightfast and indifferent to natural hypochlorite solution.
PATENT CLAIMS:
1. A process for the preparation of a dye from dioxyperylene, characterized in that dioxyperylene is heated with sulfur or alkaline sulfur compounds, or alkali hydroxide and sulfur.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT95313T | 1922-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT95313B true AT95313B (en) | 1925-02-10 |
Family
ID=3614980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT95313D AT95313B (en) | 1922-05-18 | 1922-05-18 | Process for the preparation of a dye from dioxyperylene. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT95313B (en) |
-
1922
- 1922-05-18 AT AT95313D patent/AT95313B/en active
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