GB972524A - Methods of operating internal combustion engines and coolants therefor - Google Patents
Methods of operating internal combustion engines and coolants thereforInfo
- Publication number
- GB972524A GB972524A GB4429061A GB4429061A GB972524A GB 972524 A GB972524 A GB 972524A GB 4429061 A GB4429061 A GB 4429061A GB 4429061 A GB4429061 A GB 4429061A GB 972524 A GB972524 A GB 972524A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- weight
- glycerophosphate
- water
- coolant
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
A water-soluble corrosion inhibiting composition consists of the sodium, potassium or calcium salt of glycerophosphoric acid, in a proportion not exceeding 5% by weight of the aqueous solution. The aqueous solution may also contain another corrosion-inhibitor, e.g. sodium metasilicate, sodium benzoate, or a mixture of sodium benzoate and sodium metasilicate. The corrosion-inhibiting solution of the invention is for use as a liquid coolant in internal combustion engines. The glycerophosphate salt ranges from 0.3-5% by weight in the solution, preferably 0.5-1.0%, and when the above additives are added the glycerophosphate may be reduced to 0.075% by weight. A preferred coolant contains 0.075% sodium glycerophosphate and 0.35% by weight water glass; and such a coolant may be formulated from 0.5% by weight of a concentrate, said concentrate containing 70% water glass, 15% sodium glycerophosphate and 15% water. A further coolant consists of water, 0.18% sodium glycerophosphate and 0.12% sodium benzoate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4429061A GB972524A (en) | 1961-12-11 | 1961-12-11 | Methods of operating internal combustion engines and coolants therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4429061A GB972524A (en) | 1961-12-11 | 1961-12-11 | Methods of operating internal combustion engines and coolants therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB972524A true GB972524A (en) | 1964-10-14 |
Family
ID=10432608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4429061A Expired GB972524A (en) | 1961-12-11 | 1961-12-11 | Methods of operating internal combustion engines and coolants therefor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB972524A (en) |
-
1961
- 1961-12-11 GB GB4429061A patent/GB972524A/en not_active Expired
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