GB642616A - Improvements in metal salt precipitation inhibitors - Google Patents

Improvements in metal salt precipitation inhibitors

Info

Publication number
GB642616A
GB642616A GB3039/48A GB303948A GB642616A GB 642616 A GB642616 A GB 642616A GB 3039/48 A GB3039/48 A GB 3039/48A GB 303948 A GB303948 A GB 303948A GB 642616 A GB642616 A GB 642616A
Authority
GB
United Kingdom
Prior art keywords
sodium
tetraphosphate
sulphate
added
developing solution
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
Application number
GB3039/48A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Ltd
Original Assignee
Kodak Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kodak Ltd filed Critical Kodak Ltd
Publication of GB642616A publication Critical patent/GB642616A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/105Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances combined with inorganic substances
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29Development processes or agents therefor
    • G03C5/305Additives other than developers
    • G03C5/3053Tensio-active agents or sequestering agents, e.g. water-softening or wetting agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
GB3039/48A 1943-11-04 1948-02-02 Improvements in metal salt precipitation inhibitors Expired GB642616A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US642616XA 1943-11-04 1943-11-04

Publications (1)

Publication Number Publication Date
GB642616A true GB642616A (en) 1950-09-06

Family

ID=22054677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3039/48A Expired GB642616A (en) 1943-11-04 1948-02-02 Improvements in metal salt precipitation inhibitors

Country Status (3)

Country Link
BE (1) BE480466A (enrdf_load_stackoverflow)
FR (1) FR980373A (enrdf_load_stackoverflow)
GB (1) GB642616A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122598A (en) * 1982-06-26 1984-01-18 Pyrene Chemical Services Ltd Processes and compositions for resisting corrosion
GB2138837A (en) * 1983-04-13 1984-10-31 Dearborn Chemicals Co Corrosion inhibiting functional fluid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778758B1 (fr) * 1998-05-18 2001-03-09 Eastman Kodak Co Nouvelle solution de rincage final pour produits photographiques en couleurs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122598A (en) * 1982-06-26 1984-01-18 Pyrene Chemical Services Ltd Processes and compositions for resisting corrosion
GB2138837A (en) * 1983-04-13 1984-10-31 Dearborn Chemicals Co Corrosion inhibiting functional fluid

Also Published As

Publication number Publication date
FR980373A (fr) 1951-05-11
BE480466A (enrdf_load_stackoverflow)

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