AcidCorr Shield 81 Acid Corrosion Inhibitor
The addition of Acid Shield Metal Guard Corrosion Inhibitor, inhibitors to hydrochloric acid solution provides maximum protection for equipment during,The removal of lime deposits or water scale from power plant boilers and piping systems and from evaporating equi
Inhibitor for ACID
Acid Shield Metal Guard Acid Corrosion Inhibitor is an organic, liquid, cationic corrosion inhibitor especially designed to inhibit the attack of hydrochloric acid on iron and steel during industrial cleaning operations. It also inhibits acid attack on copper and brass. It does not contain arsenic, chlorinated hydrocarbons, or lead compounds.
Premium quality corrosion inhibitor for metals to protect against Hydrochloric Acid, Phosphoric Acid, Sulfuric Acid and other corrosive acids.
RXSO ACIDCORR SHIELD 81 is a high-performance acid corrosion inhibitor formulated for use in hydrochloric acid (HCl) systems, including coiled tubing (CT), acidizing, bullheading, and scale removal operations. The product is a solvent-based blend of surface-active and acid-stable components that protect metal surfaces from acid attack at both low and elevated temperatures.
The addition of Acid Shield Metal Guard Acid Corrosion Inhibitor, inhibitors to hydrochloric acid solution provides maximum protection for equipment during:
- a. The removal of lime deposits or water scale from power plant boilers and piping systems and from evaporating equipment.
- b. The removal of scale and deposits from equipment in refineries, utility companies,paper mills, chemical plants and other industries.
Acid Shield Metal Guard Acid Corrosion Inhibitor meet the requirements.
| Property | Value |
|---|---|
| Appearance | Amber to brown clear liquid |
| pH (1% solution) | Acidic |
| Density @ 25°C | 0.95 – 1.00 g/cm³ |
| Solubility | Dispersible in HCl and brine |
| Flash Point (closed cup) | ~32°C |
| Pour Point | Below 5°C |
| Shelf Life | 12 months (sealed container) |
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Coiled Tubing (CT) Operations
Used to prevent corrosion during acid pumping through coiled tubing strings, which are highly prone to localized corrosion due to high pressure, acid turbulence, and temperature.
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Recommended Dosage:
1.0 – 2.0% v/v of total acid volume (e.g., 10–20 L per 1000 L acid) -
Recommended Acid Type:
15–28% Hydrochloric Acid (HCl) -
Bottomhole Temperature Range:
Effective up to 180°C -
Notes:
Blend into acid just before pumping; circulate through CT during pressure buildup.
Matrix Acidizing / Bullheading
For protection of casing, tubing, and surface iron when injecting acid to stimulate carbonate or sandstone formations.
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Recommended Dosage:
0.5 – 1.5% v/v, depending on:-
HCl concentration (higher acid → higher dosage)
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Metallurgy (carbon steel vs. 13Cr)
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Temperature
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Sequence:
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Preflush: water or brine
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Main flush: HCl + RXSOL ACIDCORR SHIELD 81
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Overflush: brine with corrosion inhibitor (optional)
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High-Temperature Acid Jobs (>120°C)
Used in deep well stimulations where temperature can degrade traditional film-forming inhibitors.
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Recommended Dosage:
1.5 – 2.0% v/v -
Formulation Note:
Add iron control agents and scale inhibitors as needed; verify compatibility.
Acid Cleaning of Process Equipment (Pipes, Vessels, Reactors)
Protects internal metal surfaces from acid attack during scale or rust removal.
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Recommended Dosage:
0.5 – 1.0% v/v in 10–15% HCl -
Contact Time:
30–60 minutes recirculation -
Note:
Use nonionic surfactant system for better metal wetting and dispersion.
Hydrotesting (with acidified water or brine)
For preserving pipelines, tanks, or tubing during hydrotests that use low-strength acidified water.
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Recommended Dosage:
0.25 – 0.5% v/v in low-concentration HCl or brine -
Duration:
6–48 hours exposure
Continuous Injection in Water or Hydrocarbon Systems
Where constant corrosion control is needed in pipelines or injection systems with acid ingress risk.
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Recommended Dosage:
10–50 ppm continuous injection -
Note:
Suitable for batch or continuous dosing using chemical injection pumps.
Acid Corrosion inhibitor manufacturer. exporter and supplier in India Kuwait, UAE, Oman, Mumbai Maharastra, Chennai Tamilnadu, Kolkata WestBengal, Visakhapatnam Andhrapradesh, Gandhidham Gujrat, Fujairah Dubai Sharjah Ajman Abudhabi, Oman Muscat Sohar, Canada, Nairobi Kenya Africa
General Guidelines to use Acid Corrosion Inhibitor for Hydrochloric Acid
- Always dilute and mix with acid after acid is diluted to working strength.
- Pre-mix thoroughly in a ventilated container before adding to acid tanks.
- Ensure homogeneity in the acid solution before field injection.
- Do jar testing or corrosion coupon testing in lab before large-scale use.
