FIELD: chemistry.
SUBSTANCE: invention relates to field of protection of metals against corrosion in water media and can be used for protection of equipment from stainless steel and iron-chrome-nickel alloys from phosphoric acid corrosion. Inhibitor, based on water solution of phosphorus-containing inorganic acid, contains cations of metals of VI group of Periodic system and nickel with weight ratio cations of group VI metals: nickel cations : phosphorus-containing inorganic acid, equal (0.01-0.5):(0.003-0.04):1 respectively.
EFFECT: reduction of rate of corrosion of stainless steels and iron-chrome-nickel alloys in water media, containing phosphoric acid, at higher temperatures.
3 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| INHIBITOR FOR CORROSION PROTECTION OF REACTION EQUIPMENT | 2015 |
|
RU2588615C1 |
| METHOD FOR PRODUCING A METAL CORROSION INHIBITOR | 2022 |
|
RU2779573C1 |
| INHIBITING COMPOSITION FOR PROTECTION OF METALS FROM ACID CORROSION | 2015 |
|
RU2593569C1 |
| CORROSION INHIBITOR FOR STAINLESS STEELS | 0 |
|
SU1754796A1 |
| INHIBITOR OF ACID METAL CORROSION | 2013 |
|
RU2539129C1 |
| FERROUS AND NONFERROUS METAL CORROSION INHIBITOR | 2002 |
|
RU2219287C2 |
| INHIBITOR OF CORROSION OF METALS IN ACID MEDIUMS | 1995 |
|
RU2094531C1 |
| INHIBITOR OF SULPHIDE CORROSION AND HYDROGENATION OF METAL HARDWARE | 2013 |
|
RU2539132C1 |
| WATER-SOLUBLE METALS CORROSION INHIBITOR | 2008 |
|
RU2355820C1 |
| CLATHRATE CORROSION INHIBITOR | 2019 |
|
RU2722533C1 |
