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Corrosion Inhibitor for Hydrochloric Acid Cleaning

2014-01-04 14:01:07

   

Corrosion Inhibitor for Hydrochloric Acid Cleaning

1Properties 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.

2Specification

items index
Appearance

Dark brown liquid

pH(1%water solution)

2.5 — 4.5

Density (20℃)g/cm3 1.000-1.100

 

3Using 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.

4Package and Storage

Normally in 25kgor 200kg plastic drum, Store in cool place indoors.Storage for ten months.

Appendix: inhibition effects under different conditions

 

Acid environment

Dosage

Corrosion speed rate (10 -4) g / (m 2 • h)

Inhibition rate (%)

Amino acid

 
0.1%
4.8654
95.95
0.2%
2.0393
98.30
0.3%
1.3001
98.92
0.4%
1.3011
98.92
Sulfuric acid
0.1%
47.4985
86.52
0.2%
                                6.9867                                 
98.02
0.3%
4.9807
98.58
0.4%
4.9775
98.59
Hydrochloric acid
0.1%
1.2773
97.70
0.2%
0.7349
98.68
0.3%
0.3957
99.29
0.4%
0.3887
99.3

 

 

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