GB665006A - Process for the production of a sulphonated copper phthalocyanine dye - Google Patents
Process for the production of a sulphonated copper phthalocyanine dyeInfo
- Publication number
- GB665006A GB665006A GB20296/49A GB2029649A GB665006A GB 665006 A GB665006 A GB 665006A GB 20296/49 A GB20296/49 A GB 20296/49A GB 2029649 A GB2029649 A GB 2029649A GB 665006 A GB665006 A GB 665006A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper phthalocyanine
- per cent
- sulphonated
- salt
- excess
- 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
Links
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
- C09B47/00—Porphines; Azaporphines
- C09B47/04—Phthalocyanines abbreviation: Pc
- C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
- C09B47/12—Obtaining compounds having alkyl radicals, or alkyl radicals substituted by hetero atoms, bound to the phthalocyanine skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
Copper phthalocyanine is sulphonated with an excess of 15 per cent oleum at 170-175 DEG C. for about two hours in presence of mercuric sulphate, the reaction mixture is cooled, diluted with water, and brought to a pH not less than 8 (e.g. with 40 per cent caustic soda solution); the pH is then reduced to not more than 5 with acetic acid, and the mixture is cooled, e.g. to 30 DEG C., and treated with excess of a -triphenyl guanidine in hot aqueous alcoholic acetic acid solution to form a guanidine salt of the dye, which salt is removed and dissolved in ethyl alcohol. Finally, the sodium salt of the sulphonated copper phthalocyanine is precipitated, e.g. by adding anhydrous sodium acetate at about 70 DEG C. The amount of oleum may be 10 times the weight of copper phthalocyanine, and the amount of mercuric sulphate up to 4 per cent of that weight. The product is useful in colour photography.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US665006XA | 1948-08-06 | 1948-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB665006A true GB665006A (en) | 1952-01-16 |
Family
ID=22069887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20296/49A Expired GB665006A (en) | 1948-08-06 | 1949-08-04 | Process for the production of a sulphonated copper phthalocyanine dye |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB665006A (en) |
-
1949
- 1949-08-04 GB GB20296/49A patent/GB665006A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB665006A (en) | Process for the production of a sulphonated copper phthalocyanine dye | |
| GB932523A (en) | Process for the production of lead hydroxide oxide of the formula 5 pbo.2ho | |
| GB918929A (en) | Improvements in or relating to process for the manufacture of therapeutic useful preparations of iron | |
| GB383112A (en) | Process for the production of aluminium derivatives of acetyl-salicy lic acid | |
| GB695592A (en) | Improvements relating to beta-bromo-alpha-chloro-beta-formylacrylic acid and method of preparing same | |
| GB664836A (en) | Improvements in photographic imbibition dye printing processes | |
| GB660593A (en) | Improvements in or relating to methods of making aquasols and organo-aquasols | |
| GB355808A (en) | Improvements in the manufacture of ?-aminothiophenols | |
| GB379677A (en) | Improvements in and relating to therapeutic compounds containing silver | |
| GB709614A (en) | Improvements in the production of 4-hydroxy-7.8-phthaloylcinnolines | |
| GB720166A (en) | Method of preparing the tri-p-aminosalicylate of dihydrostreptomycin | |
| GB489612A (en) | Manufacture of fluorene derivatives | |
| GB633459A (en) | A process for the manufacture of n-(p-arsenosobenzyl)-glycine-amide and salts thereof | |
| GB657539A (en) | Electrolytic oxidation of alcohols | |
| GB1001704A (en) | Process for the production of water soluble derivatives of ªÐ-amino-salicylic acid | |
| GB668567A (en) | Improvements in or relating to a method of preparing a stable theophylline composition and the product resulting therefrom | |
| GB248523A (en) | Process for the manufacture of monoacyl derivatives of aminoarylarseno compounds | |
| GB723033A (en) | Improvements in or relating to the preparation of vinyl acetate | |
| GB517747A (en) | Manufacture of aminohydrazines | |
| GB358032A (en) | Improvements in and relating to the production of esters of anthrahydroquinones | |
| GB301808A (en) | An improved manufacture of 4-(ª‰-oxyethylamino)-1-oxybenzene | |
| GB468157A (en) | Improvements in and relating to the preparation of complex iron compounds | |
| GB791197A (en) | Improved process for preparing dicyclopentadienyl acids | |
| ES214536A1 (en) | A procedure for skin treatment (Machine-translation by Google Translate, not legally binding) | |
| GB970481A (en) | Improvements in or relating to the bromination of steroid compounds |