DE166680C - - Google Patents
Info
- Publication number
- DE166680C DE166680C DENDAT166680D DE166680DA DE166680C DE 166680 C DE166680 C DE 166680C DE NDAT166680 D DENDAT166680 D DE NDAT166680D DE 166680D A DE166680D A DE 166680DA DE 166680 C DE166680 C DE 166680C
- Authority
- DE
- Germany
- Prior art keywords
- sulfur
- yellow
- urea
- solution
- phosgene
- 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
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- YGYAWVDWMABLBF-UHFFFAOYSA-N phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 3
- 239000004202 carbamide Substances 0.000 claims description 2
- IWOKCMBOJXYDEE-UHFFFAOYSA-N sulfinylmethane Chemical compound C=S=O IWOKCMBOJXYDEE-UHFFFAOYSA-N 0.000 claims 1
- 239000000243 solution Substances 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- -1 m-phenylenediamine urea Chemical compound 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 240000002268 Citrus limon Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N Sodium sulfide Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- QDHHCQZDFGDHMP-UHFFFAOYSA-N monochloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 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
- C09B49/08—Sulfur dyes from urea derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Leitet man bei Gegenwart von salzsäurebindenden Mitteln Phosgen in die wäßrige Lösung von ι - Acetamino - 2 · 4 - diaminobenzol, so wird dieses in ein in Wasser schwer lösliches Harnstoffderivat übergeführt. Schmilzt man den so erhaltenen Körper mit Schwefel, so erhält man eine in Schwefelalkalien mit zitronengelber Farbe lösliche Substanz, die unmittelbar als Farbstoff verwendet werden kann. Dieser unterscheidet . sich durch die leuchtend gelbe Farbe sehr wesentlich von den in der Patentschrift 146914 beschriebenen Farbstoffen ' aus m-Phenylendiaminharnstoff und m-Toluylendiaminharnstoff, die grau bezw. braun färben.In the presence of hydrochloric acid-binding agents, phosgene is passed into the aqueous solution Solution of ι - acetamino - 2 4 - diaminobenzene, this is converted into a urea derivative that is sparingly soluble in water. If the body obtained in this way is melted with sulfur, one in sulfur alkalis is obtained Lemon yellow soluble substance that is used directly as a coloring agent can be. This differs. because of the bright yellow color essentially from the dyes described in patent 146914 from m-phenylenediamine urea and m-toluenediamine urea, the gray bezw. color brown.
In eine Lösung von 16,5 kg Acettriaminobenzol und 15 kg Soda in 400 1 Wasser leitet man so lange Phosgen ein, bis keine unveränderte Base mehr nachweisbar ist. Der ausgeschiedene farblose Niederschlag wird abfiltriert, ausgewaschen und getrocknet. Der Diacetyltetraminodiphenylharnstoff bildet ein farbloses, in allen gebräuchlichen Lösungsmitteln, sowie in Säuren und Alkalien fast unlösliches Pulver. Der Schmelzpunkt liegt oberhalb 300 ° C. Zur Darstellung des Farbstoffs werden IO kg des Harnstoffs in 30 kg geschmolzenen Schwefel eingetragen und die Schmelze allmählich bis 240 ° C. erhitzt. Man hält kurze Zeit bei dieser Temperatur, läßt dann erkalten und pulverisiert die Masse. Man erhält so ein braunes Pulver, das sich in verdünnter Schwefelnatriumlösung mit gelber Farbe löst und aus dieser Lösung durch Säuren, Chlorammonium usw. in Form gelber Flocken gefällt ν/Ίτά. Der Farbstoff ist unlöslich in Alkohol, leicht mit gelber Farbe in konzentrierter Schwefelsäure löslich. Baumwolle wird im Schwefelalkalibade in reinen grünlichgelben Tönen gefärbt.Phosgene is passed into a solution of 16.5 kg of acettriaminobenzene and 15 kg of soda in 400 l of water until an unchanged base can no longer be detected. The colorless precipitate which has separated out is filtered off, washed out and dried. The diacetyltetraminodiphenylurea forms a colorless powder that is almost insoluble in all common solvents, as well as in acids and alkalis. The melting point is above 300 ° C. To produce the dye, 10 kg of the urea are added to 30 kg of molten sulfur and the melt is gradually heated to 240 ° C. It is kept at this temperature for a short time, then allowed to cool and the mass is pulverized. This gives a brown powder, which dissolves in dilute sodium sulphide solution with yellow color, and from this solution by means of acids, ammonium chloride, etc. precipitated in the form of yellow flakes ν / Ίτά. The dye is insoluble in alcohol, easily soluble in concentrated sulfuric acid with a yellow color. Cotton is dyed in a sulfur-alkaline bath in pure greenish-yellow tones.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE166680C true DE166680C (en) |
Family
ID=432062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT166680D Active DE166680C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE166680C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735254A (en) * | 1956-02-21 | huddle |
-
0
- DE DENDAT166680D patent/DE166680C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2735254A (en) * | 1956-02-21 | huddle |
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