Imidazoline Corrosion Inhibitor for Metal Cleaning

• Certification: SGS
• Environmental Protection: Yes
• Appearance: Liquid
• Color: Yellow
• Transport Package: 3kg/Barrel, 6barrel/Carton
• Trademark: henghao
• Origin: China
• Production Capacity: 999999

Product Description

Lan-826 multi-purpose pickling corrosion inhibitor

 1.Introduction to Lan-826 Lan-826 multi-purpose pickling corrosion inhibitor has been listed as a national key scientific and technological achievement promotion project by the State Science and Technology Commission. It has passed the technical appraisal of the Ministry of Chemical Industry and won the third-class invention award of the State Science and Technology Commission. Lan-826 corrosion inhibitor is the first multi-purpose pickling corrosion inhibitor. It can be used in various chemical cleaning acids, including oxidative and non-oxidative acids, various inorganic acids and various organic acids. Efficient corrosion inhibition, and has excellent ability to inhibit hydrogen permeation and inhibit the accelerated corrosion of ferric iron. No pitting corrosion occurs when pickling metals. As a variety of acid pickling corrosion inhibitors such glycolic acid, oxalic acid, EDTA,  Lan-826 corrosion inhibitor is currently an excellent variety.


 Dosage and usage
      1. Liquid preparation: The concentration of corrosion inhibitor is generally 0.3% (one ton of water plus three kilograms). Add the metered corrosion inhibitor to the metered water and stir until it is completely dissolved, and then stir evenly.
       2. Preparation of pickling solution: slowly add the metered acid to the above prepared liquid, and at the same time keep stirring to completely dissolve the acid, and the solution can be used after mixing evenly.
      3. Pickling process conditions: [Note: The amount of acid must be determined by the amount of dirt in the pickling, which can be a small amount first, and then increase]


(1) The concentration of inorganic acid is generally 3-10% by weight, and cannot exceed 20% by weight; when used at room temperature, the temperature cannot exceed 55 °C, otherwise the corrosion inhibitor will easily fail and accelerate the corrosion of acid to metals. (Inorganic acids include sulfuric acid, 
     (2) The concentration of organic acid is generally 3-20% by weight. It is used at room temperature or heated to 60-90 degrees. The temperature or concentration should not be too high, otherwise the corrosion inhibitor may fail and accelerate the corrosion of acid to metals. (Organic acids include  citric acid, oxalic acid, acetic acid, EDTA, etc.). If you are using it for the first time or have no experience in using it, you must first try it out in small quantities and then use it in large quantities. Lan-826 Corrosion Inhibitor is a light yellow liquid with a specific gravity of 1.06 (at 20ºC), small odor (aromaticity), low toxicity (LD50 is 1130mg/kg), non-flammable and non-explosive, slightly alkaline. Under common conditions, the recommended dosage and corrosion inhibition performance are shown in the table.





Features
         Lan-826 corrosion inhibitor can clean carbon steel, stainless steel, copper, aluminum non-ferrous metals and their connection structures of different materials, such as various types of steam boilers, hot water boilers, once-through boilers, various storage tanks, reactors, Waste heat boilers, various heat exchangers, water cooling jackets, refrigerators, air conditioning systems and household utensils, etc. It has been proved by industrial application in chemical fertilizer, chemical fiber, rubber, pharmaceutical, power, machinery, papermaking, machine repair, food and service industries and departments: Lan-826 corrosion inhibitor has small dosage, low cost and good effect;
         One agent is multi-purpose, easy to manage, safe to use, easy to operate, and has a wide range of applications; it has remarkable effects in maintaining equipment safety, restoring equipment original performance, extending equipment service life and saving energy. Before chemical cleaning begins, select and prepare cleaning agents and cleaning conditions according to equipment structure, material and dirt type, select appropriate cleaning methods, and design and install temporary pipelines. The operation steps of the pickling stage are: adding metered water-adding recommended amount of Lan-826 corrosion inhibitor-adding metered acid-cleaning according to conventional chemical cleaning procedures.

index	parameter	index	parameter
state	light yellow or dark red liquid	Flammability	non-flammable and non-explosive
Acidity and alkalinity	Weakly alkaline	Corrosive	slightly corrosive
effective content	>98%	Chloride	not included

Physical and chemical indicators


 

1. It is convenient for the factory to choose the appropriate cleaning agent.

The correct choice of cleaning agent is the key to ensuring the success of chemical cleaning. Before chemical cleaning starts, the most suitable cleaning agent should be selected according to the process conditions, structural characteristics, structural materials, dirt composition and dirt dissolution test results of the equipment used. Obviously, whether the corresponding corrosion inhibitor can be obtained is also a factor that must be considered, that is to say, the choice of cleaning agent is also limited by the corrosion inhibitor.
         The multi-purpose Lan-826 corrosion inhibitor brings great convenience to the factory to choose the appropriate cleaning agent. As long as this kind of corrosion inhibitor is available, the factory can freely choose the cleaning agent.
On the other hand, if the factory can get the various corrosion inhibitors required, these corrosion inhibitors are also much more troublesome than the single Lan-826 corrosion inhibitor in procurement, transportation, storage and use.
 Lan-826 Corrosion Inhibitor also provides convenience for users to choose cheap and easy-to-obtain cleaning agents. For example, when the structural material of the equipment is carbon steel and there is calcium carbonate type scale, cleaning with and  is effective. Closer units and with lower local  prices, it is much more cost-effective to choose

Suitable for cleaning with 
It is difficult to remove oxides on the surface of stainless steel by generalmethods. In this case, 
c acid has only been used in the cleaning of pure stainless steel equipment in the past. The efficient corrosion inhibition of Lan-826 corrosion inhibitor on carbon steel and stainless steel in nitric enables the process of cleaning carbon steel-stainless steel combined equipment with nitric . Many boilers in Gansu, Shanxi, Hubei, Anhui, Zhejiang and other places have siliceous hard scale. This scale has poor solubility in ,lus Lan-826 corrosion inhibitor is used to clean Satisfactory results have been shown. Obviously, Lan-826 corrosion inhibitor also adds a new variety of cleaning agents to the chemical cleaning of boilers.


Suitable for cleaning multi-material equipment.
     respectively, which complicates the process and takes time, and most of the equipment cannot be isolated. The multi-purpose Lan-826 corrosion inhibitor can easily solve the cleaning problem of multi-material equipment. Many large chemical plants have used Lan-826 corrosion inhibitor for chemical cleaning of large stainless steel-carbon steel combined process equipment. The use of Lan-826 corrosion inhibitor in Vinylon Factory also solved the problem of chemical cleaning of stainless steel-carbon steel composite equipment, and regarded it as an indispensable process. The most typical example is that Lan-826 corrosion inhibitor is used in the cleaning of equipment composed of nine grades of metals such as stainless steel, carbon steel, copper, and aluminum in a factory. After cleaning with acid and adding Lan-826 corrosion inhibitor, the equipment recovered its original performance, and the pickling time only took two hours.
Such equipment made of various metals such as stainless steel is very common in various industries, especially those related to chemical processes. Most of the heat exchange equipment in the large-scale chemical fertilizer and chemical fiber equipment introduced in my country is composed of stainless steel, carbon steel and other metals. Therefore, the solution to the problem of chemical cleaning of multi-material equipment is undoubtedly of great practical significance.
 
Good slow release performance.
Under on-site conditions, there are differences in the equipment and dirt components of each unit. The acid species, acid concentration, temperature, and acid flow rate used are different. The cleaning time is as short as two hours and as long as tens of hours. The chemical cleaning process and The operating techniques are also different, and even the processing and handling of the corrosion test pieces are different, so that the influence of various factors is intertwined, and it is difficult to clearly distinguish the exact degree of the influence of a certain factor from the corrosion data. However, in all cases, Lan-826 corrosion inhibitor effectively protected the metal, and no pitting corrosion occurred in the metal during pickling, which shows that Lan-826 and corrosion inhibitor have the ability to adapt to various changes in site conditions. ability.
The pickling operation is safe.
The biggest unsafe factor in pickling operations is the misuse of corrosion inhibitors, which can have catastrophic consequences. The versatility of Lan-826 corrosion inhibitor solves the problem of misuse. At the same time, Lan-826 corrosion inhibitor has low odor and low toxicity, which is beneficial to the normal operation of operators and environmental protection.
        Lan-826 Corrosion Inhibitor is packaged in a single pack, and has the characteristics of convenient use of all single-pack corrosion inhibitors. When using, just add it according to the amount, and it is not necessary to add it separately like the sub-packaging type corrosion inhibitor. Since Lan-826 corrosion inhibitor can adapt to various changes in the field, there are no special requirements and regulations when using Lan-826 corrosion inhibitor, as long as the general chemical cleaning operation rules are followed. Therefore, the use method of Lan-826 corrosion inhibitor is easy to be accepted and mastered by the field personnel.

Precautions
1. Lan-826 is mostly acid pickling corrosion inhibitor, which is slightly corrosive. If it splashes into the eyes and mouth, please rinse it with water immediately, and it is strictly forbidden to eat;
2. After dispensing, it should be used in time; sealed and stored in a cool place.

Packaging Specifications
  Plastic bottle, 3kg/barrel, 6barrel/carton; plastic barrel, 20kg/barrel.