GB991412A - Chemical compositions - Google Patents
Chemical compositionsInfo
- Publication number
- GB991412A GB991412A GB1605461A GB1605461A GB991412A GB 991412 A GB991412 A GB 991412A GB 1605461 A GB1605461 A GB 1605461A GB 1605461 A GB1605461 A GB 1605461A GB 991412 A GB991412 A GB 991412A
- Authority
- GB
- United Kingdom
- Prior art keywords
- salt
- ethylene diamine
- acid
- bleach
- ferric
- 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
- 239000000203 mixture Substances 0.000 title abstract 2
- 239000000126 substance Substances 0.000 title 1
- -1 alkylene amine Chemical class 0.000 abstract 4
- 150000003839 salts Chemical class 0.000 abstract 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 150000001340 alkali metals Chemical class 0.000 abstract 2
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical class [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 abstract 2
- 239000007844 bleaching agent Substances 0.000 abstract 2
- 239000013522 chelant Substances 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- UOMQUZPKALKDCA-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxymethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OC(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UOMQUZPKALKDCA-UHFFFAOYSA-K 0.000 abstract 1
- BDOYKFSQFYNPKF-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;sodium Chemical compound [Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O BDOYKFSQFYNPKF-UHFFFAOYSA-N 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 abstract 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 abstract 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 abstract 1
- 125000005263 alkylenediamine group Chemical group 0.000 abstract 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 abstract 1
- 150000002825 nitriles Chemical class 0.000 abstract 1
- 150000003567 thiocyanates Chemical class 0.000 abstract 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/42—Bleach-fixing or agents therefor ; Desilvering processes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
991,412. Photographic bleach fix baths. PAVELLE Ltd. April 17,1962 [May 3, 1961], No. 16054/61. Heading G2C. A bleach fixing bath composition comprises a ferric salt of an alkylene amine polyacetic acid, a silver halide solvent and a non-delate salt (i.e. an alkali metal, ammonium or amine salt) of an alkylene diamine polyacetic acid, the non-chelate salt being present in an amount at least sufficient to give a weight ratio of non-chelate to ferric salt of 1:3. The polyacetic acid may be ethylene diamine N-(#-hydroxy-ethyl)triacetic acid. Silver halide solvents specified are alkali metal or ammonium thiosulphates, thiocyanates or cyanides or thiourea. In the example, a bleach-fix bath containing ammonium thiosulphate and thiocyanate, disodium ethylene diamine tetra-acetic acid, disodium ferric ethylene diamine tetra-acetate and thiourea is prepared. Specification 774,545 is referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1605461A GB991412A (en) | 1961-05-03 | 1961-05-03 | Chemical compositions |
| FR896141A FR1321785A (en) | 1961-05-03 | 1962-05-02 | Composition and process for bleaching and fixing photographic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1605461A GB991412A (en) | 1961-05-03 | 1961-05-03 | Chemical compositions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB991412A true GB991412A (en) | 1965-05-05 |
Family
ID=10070312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1605461A Expired GB991412A (en) | 1961-05-03 | 1961-05-03 | Chemical compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB991412A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658535A (en) * | 1967-12-27 | 1972-04-25 | Agfa Gevaert Nv | Photography |
| EP0430000A1 (en) * | 1989-12-01 | 1991-06-05 | Agfa-Gevaert AG | Bleach bath |
-
1961
- 1961-05-03 GB GB1605461A patent/GB991412A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3658535A (en) * | 1967-12-27 | 1972-04-25 | Agfa Gevaert Nv | Photography |
| EP0430000A1 (en) * | 1989-12-01 | 1991-06-05 | Agfa-Gevaert AG | Bleach bath |
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