Corrosion Inhibitor for Hydrochloric Acid Cleaning

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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 Inhibitor Applications 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.

Specification

Item

Index

Appearance

Dark brown liquid

pH(1%water solution)

2.5 — 4.5

Density25g/cm3

1.000-1.100

Using method

Add 1-3 kg of acid corrosion inhibitor into 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.

Package and Storage

Normally in 25kg or 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

99.30