GB1449499A - Method of and an agent for treating water - Google Patents
Method of and an agent for treating waterInfo
- Publication number
- GB1449499A GB1449499A GB5131773A GB5131773A GB1449499A GB 1449499 A GB1449499 A GB 1449499A GB 5131773 A GB5131773 A GB 5131773A GB 5131773 A GB5131773 A GB 5131773A GB 1449499 A GB1449499 A GB 1449499A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- nov
- amount
- precipitation
- agent
- 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
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1449499 Preventing precipitation in hard water GELSENBERG AG 5 Nov 1973 [9 Nov 1972] 51317/73 Heading C1C Hard water is treated to reduce or prevent the precipitation of dissolved mineral salts therefrom by addition of cyclopentanetetracarboxylic acid, at least 60% of which is in the all-cis form, or a water-soluble salt thereof (e.g. with Na, K, NH 4 , triethanolamine), in an amount of at least 1 g. (calcd. as the tetra-Na salt) per cu. m. of water, optionally in conjunction with a pH regulator, sterilizer and/or algicide (none specified), but in the substantial absence of a detergent. The amount of additive may be substoichiometric ("threshold") (1-50 g./cu. m.) or sufficient for complex formation (40-200 g./cu. m./degree German hardness scale).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722254805 DE2254805A1 (en) | 1972-11-09 | 1972-11-09 | WATER TREATMENT AGENTS |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1449499A true GB1449499A (en) | 1976-09-15 |
Family
ID=5861219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5131773A Expired GB1449499A (en) | 1972-11-09 | 1973-11-05 | Method of and an agent for treating water |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT324966B (en) |
BE (1) | BE806956A (en) |
CH (1) | CH594564A5 (en) |
DE (1) | DE2254805A1 (en) |
FR (1) | FR2206281A1 (en) |
GB (1) | GB1449499A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4139608A (en) | 1976-12-27 | 1979-02-13 | Colgate Palmolive Company | Oral compositions containing an anticalculus agent |
-
1972
- 1972-11-09 DE DE19722254805 patent/DE2254805A1/en active Pending
-
1973
- 1973-11-05 GB GB5131773A patent/GB1449499A/en not_active Expired
- 1973-11-06 BE BE137438A patent/BE806956A/en unknown
- 1973-11-07 FR FR7339576A patent/FR2206281A1/fr not_active Withdrawn
- 1973-11-07 AT AT936273A patent/AT324966B/en not_active IP Right Cessation
- 1973-11-08 CH CH1569773A patent/CH594564A5/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4139608A (en) | 1976-12-27 | 1979-02-13 | Colgate Palmolive Company | Oral compositions containing an anticalculus agent |
Also Published As
Publication number | Publication date |
---|---|
FR2206281A1 (en) | 1974-06-07 |
CH594564A5 (en) | 1978-01-13 |
BE806956A (en) | 1974-03-01 |
AT324966B (en) | 1975-09-25 |
DE2254805A1 (en) | 1974-05-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |