DE1165379B - Vapor phase inhibitors to protect iron and its alloys against atmospheric corrosion - Google Patents
Vapor phase inhibitors to protect iron and its alloys against atmospheric corrosionInfo
- Publication number
- DE1165379B DE1165379B DEM46646A DEM0046646A DE1165379B DE 1165379 B DE1165379 B DE 1165379B DE M46646 A DEM46646 A DE M46646A DE M0046646 A DEM0046646 A DE M0046646A DE 1165379 B DE1165379 B DE 1165379B
- Authority
- DE
- Germany
- Prior art keywords
- vapor phase
- phase inhibitors
- atmospheric corrosion
- against atmospheric
- protect iron
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 6
- 239000003112 inhibitor Substances 0.000 title claims description 6
- 230000007797 corrosion Effects 0.000 title claims description 5
- 238000005260 corrosion Methods 0.000 title claims description 5
- 239000012808 vapor phase Substances 0.000 title claims description 4
- 239000000956 alloy Substances 0.000 title claims description 3
- 229910045601 alloy Inorganic materials 0.000 title claims description 3
- 229910052742 iron Inorganic materials 0.000 title claims description 3
- CAMXVZOXBADHNJ-UHFFFAOYSA-N ammonium nitrite Chemical class [NH4+].[O-]N=O CAMXVZOXBADHNJ-UHFFFAOYSA-N 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- UAZDIGCOBKKMPU-UHFFFAOYSA-O azanium;azide Chemical class [NH4+].[N-]=[N+]=[N-] UAZDIGCOBKKMPU-UHFFFAOYSA-O 0.000 claims description 2
- -1 heterocyclic amine Chemical class 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- UFJPAYNKJQERJF-UHFFFAOYSA-N [N-]=[N+]=[N-].ON=O Chemical compound [N-]=[N+]=[N-].ON=O UFJPAYNKJQERJF-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 2
- ZFAKTZXUUNBLEB-UHFFFAOYSA-N dicyclohexylazanium;nitrite Chemical compound [O-]N=O.C1CCCCC1[NH2+]C1CCCCC1 ZFAKTZXUUNBLEB-UHFFFAOYSA-N 0.000 description 2
- XBPCUCUWBYBCDP-UHFFFAOYSA-N Dicyclohexylamine Chemical compound C1CCCCC1NC1CCCCC1 XBPCUCUWBYBCDP-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001540 azides Chemical class 0.000 description 1
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 1
- JUINSXZKUKVTMD-UHFFFAOYSA-N hydrogen azide Chemical compound N=[N+]=[N-] JUINSXZKUKVTMD-UHFFFAOYSA-N 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 150000003891 oxalate salts Chemical class 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
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)
Description
Dampfphaseninhibitoren zum Schutz von Eisen und seinen Legierungen gegen atmosphärische Korrosion In der Hauptpatentanmeldung M46156VIb/48d werden flüchtige Ammoniumazide als Dampfphaseninhibitoren vorgeschlagen.Vapor phase inhibitors for the protection of iron and its alloys against atmospheric corrosion In the main patent application M46156VIb / 48d volatile ammonium azides have been proposed as vapor phase inhibitors.
Wie sich nun herausstellte, läßt sich deren Wirksamkeit steigern, wenn man sie zusammen mit flüchtigen Ammoniumnitriten zur Anwendung bringt, wobei eine größere Schutzwirkung erzielt wird,, als wenn man die Substanzen einzeln für sich einsetzt. Die für diesen Zweck geeigneten Ammoniumnitrite müssen unter normalen Bedingungen beständig sein und können auf der Basis sekundärer aliphatischer, alicyclischer oder heterocyclischer Amine aufgebaut werden, wie z. B. Dibutylamin, Dicyclohexylamin, Morpholin usw. Das Mischungsverhältnis des Azids zum Nitrit kann dabei in weiten Grenzen variieren und liegt zwischen 5 und 95,%. Jedoch ist es zweckmäßig, etwa äquivalente Mengen einzusetzen, da in diesem System eventuell auftretende Stickstoffwasserstoffsäure durch die gleichzeitig anwesende salpetrige Säure zerstört wird, wobei indifferente Produkte entstehen, die den Korrosionsablauf nicht mehr beeinflussen. Die Reaktion verläuft nach HN3 -!- HN02 = N20 -t- N2 -!- H20 Es ist auch in diesem Falle zur Erzielung eines einwandfreien Korrosionsschutzes möglich, anstatt der reinen Verbindungen andere Ammoniumsalze, wie z. B. Phosphate, Oxalate und Benzoate, zusammen mit Alkali- bzw. Erdalkaliazid-nitrit-Gemischen zu verwenden. Der pß-Wert dieser Mischungen soll so sein, daß er in wäßriger Lösung zwischen 6 und 12, vorzugsweise jedoch zwischen 7 und 10 liegt.As it now turned out, their effectiveness can be increased, when used together with volatile ammonium nitrites, where a greater protective effect is achieved, than if one were to use the substances individually for gets involved. The ammonium nitrites suitable for this purpose must be below normal Conditions to be stable and can be based on secondary aliphatic, alicyclic or heterocyclic amines are built up, such as. B. dibutylamine, dicyclohexylamine, Morpholine etc. The mixing ratio of the azide to the nitrite can vary widely Limits vary and is between 5 and 95%. However, it is useful about Use equivalent amounts, since hydrazoic acid may occur in this system is destroyed by the simultaneously present nitrous acid, whereby indifferent Products are created that no longer influence the course of corrosion. The reaction runs according to HN3 -! - HN02 = N20 -t- N2 -! - H20 It is also in this case to Achieving perfect corrosion protection possible instead of the pure connections other ammonium salts, e.g. B. phosphates, oxalates and benzoates, together with alkali or alkaline earth azide-nitrite mixtures to be used. The pβ value of these mixtures should be such that he in aqueous solution between 6 and 12, but preferably between 7 and 10 lies.
Die Wirksamkeit der hier beschriebenen Azid-Nitrit-Gemische mag an
folgendem Beispiel erläutert werden. Die Versuche wurden unter den in der Hauptpatentanmeldung
angegebenen Bedingungen und Voraussetzungen durchgeführt. Beispiel
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM46646A DE1165379B (en) | 1960-09-23 | 1960-09-23 | Vapor phase inhibitors to protect iron and its alloys against atmospheric corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM46646A DE1165379B (en) | 1960-09-23 | 1960-09-23 | Vapor phase inhibitors to protect iron and its alloys against atmospheric corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1165379B true DE1165379B (en) | 1964-03-12 |
Family
ID=7305662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM46646A Pending DE1165379B (en) | 1960-09-23 | 1960-09-23 | Vapor phase inhibitors to protect iron and its alloys against atmospheric corrosion |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1165379B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3383328A (en) * | 1966-04-04 | 1968-05-14 | Navy Usa | Water displacing and rust preventive compositions |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT185190B (en) * | 1944-10-05 | 1956-04-10 | Bataafsche Petroleum | Process for protecting metal surfaces against corrosion and packaging material that protects against corrosion |
-
1960
- 1960-09-23 DE DEM46646A patent/DE1165379B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT185190B (en) * | 1944-10-05 | 1956-04-10 | Bataafsche Petroleum | Process for protecting metal surfaces against corrosion and packaging material that protects against corrosion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3383328A (en) * | 1966-04-04 | 1968-05-14 | Navy Usa | Water displacing and rust preventive compositions |
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