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Corrosion Inhibitor for Hydrochloric Acid Cleaning
Corrosion Inhibitor for Hydrochloric Acid Cleaning
1、Properties and usage
Acid cleaning agent is belonged to imidazoline . When using acid to clean metal, adding acid corrosion inhibitor, can inhibit the acid corrosion of steel.Corrosion InhibitorApplications for the cleaning mediums which are hydrochloric acid, sulfuric acid, amino acid, the cleaning object is black metal.Pickling is applicable to various types of high ,mid-high and low voltage boilers and large equipment, pipe pickling.Acid corrosion ability (the dosage is 1-3 ‰) ,the corrosion speed≤ 1g/m2 • h.
2、Specification
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items |
index |
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Appearance |
Dark brown liquid
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pH(1%water solution)
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2.5 — 4.5
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Density (20℃)g/cm3 |
1.000-1.100 |
3、Using method
Add 1-3 kg ofacid corrosion inhibitorinto per ton of 5-10% hydrochloric acid , even mixing ,it can not be directly added into water,Open loop circulating pump to clean,in the cleaning process, add acid pickling as the proportion.
4、Package and Storage
Normally in 25kgor 200kg plastic drum, Store in cool place indoors.Storage for ten months.
Appendix: inhibition effects under different conditions
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Acid environment
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Dosage
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Corrosion speed rate (10 -4) g / (m 2 • h)
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Inhibition rate (%)
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Amino acid
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0.1%
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4.8654
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95.95
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0.2%
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2.0393
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98.30
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0.3%
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1.3001
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98.92
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0.4%
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1.3011
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98.92
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Sulfuric acid
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0.1%
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47.4985
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86.52
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0.2%
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6.9867
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98.02
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0.3%
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4.9807
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98.58
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0.4%
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4.9775
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98.59
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Hydrochloric acid
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0.1%
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1.2773
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97.70
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0.2%
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0.7349
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98.68
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0.3%
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0.3957
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99.29
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0.4%
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0.3887
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99.3
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