---
type: "WebPage"
title: "Corrosion analysis in an acid medium in the laboratory"
description: "Do you want to carry out an acid corrosion analysis of your materials What is acid corrosion analysis Thecorrosion analysis in acidic environments aims to assess the resistance of a material or assembly when exposed to an acidic environment (for..."
resource: "https://filab.fr/en/our-services/our-expertise-services/electrochemical-characterization/corrosion-acid-medium/"
tags: ["EN", "pll_685d346c5ea02"]
timestamp: "2026-06-30T11:40:26Z"
published: "2025-06-26T12:39:43Z"
language: "en"
author: "Laure Durieux"
---

# Corrosion analysis in an acid medium in the laboratory

## Do you want to carry out an acid corrosion analysis of your materials

### What is acid corrosion analysis

The**[corrosion analysis](https://filab.fr/en/our-services/our-expertise-services/laboratory-analysis-deposit-contamination/laboratory-expertise-and-analysis-of-corrosion.md) in acidic environments** aims to **assess the resistance of a material or assembly** when exposed to an **acidic environment** (for example: hydrochloric, sulfuric, nitric acid, etc.). This type of analysis is particularly critical for sectors exposed to aggressive chemical environments.

The [electrochemical characterization](https://filab.fr/nos-prestations/expertise/laboratoire-analyse-depot-pollution/laboratoire-danalyse-de-caracterisation-electrochimique/)  and corrosion analysis in acidic environments can be applied to many industrial sectors, from[aerospace](https://filab.fr/en/sectors-of-activity/laboratory-analysis-aeronautics-aerospace.md) to [cosmetics](https://filab.fr/en/sectors-of-activity/laboratory-analysis-cosmetics.md), including[energy](https://filab.fr/en/sectors-of-activity/laboratory-analysis-nuclear-energy.md) and [medical devices](https://filab.fr/en/sectors-of-activity/laboratory-analysis-medical-devices.md).

## Analytical techniques for acid corrosion analysis

Among the approaches used to analyze corrosion in acidic environments, the first is to carry out **immersion tests**.

The second approach is based on **electrochemical tests in acidic media**, such as **linear polarization**, **corrosion potential measurement** or **electrochemical impedance spectroscopy (EIS)**.

These techniques make it possible to **monitor in real time** the behavior of a material when exposed to acid attack, while providing **quantitative data on corrosion rate and mechanisms**.

Finally, **post-exposure surface analysis** can be carried out to deepen understanding of the phenomenon. [**SEM-EDX**](https://filab.fr/nos-moyens-techniques/laboratoire-d-analysis-par-microscopie-electronique-a-balayage-meb-edx/) is used to **characterize damaged areas**, [**XPS**](https://filab.fr/en/our-technical-resources/laboratory-analysis-xps-esca.md) to **identify the chemical species** formed on the surface, and techniques such as [FTIR](https://filab.fr/en/our-technical-resources/laboratory-analysis-ftir-spectroscopy.md) or **X-ray diffraction ([XRD](https://filab.fr/en/our-technical-resources/x-ray-crystallography-laboratory-xrd.md))** make it possible to **analyze [deposits](https://filab.fr/en/our-services/our-expertise-services/laboratory-analysis-deposit-contamination.md) or corrosion products**.

### Why carry out an acid corrosion analysis?

  acid corrosion analysis
##

 Acid corrosion analysis is particularly relevant for:
Assessing the [corrosion resistance](https://filab.fr/en/our-services/our-expertise-services/laboratory-analysis-deposit-contamination/corrosion-resistance-testing.md) of a [metal](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-metals.md) or an [alloy](https://filab.fr/en/analysis-of-metallic-alloys-in-the-laboratory.md)

Testing the effectiveness of an anti-corrosion coating or paint

Characterizing passive films on metallic [surfaces](https://filab.fr/en/our-services/our-analysis-services/laboratory-surface-characterization.md)

Monitoring the degradation of electrolytes, [batteries](https://filab.fr/en/our-services/our-expertise-services/analysis-characterization-battery-materials.md) or sensors

Studying diffusive, capacitive or resistive behavior in a system

Ensuring the durability and reliability of materials

Optimizing performance and reducing costs

Encouraging innovation and compliance

## The FILAB laboratory supports you in the acid corrosion analysis of your materials

## Why choose FILAB for acid corrosion analysis?

FILAB, a laboratory made up of experts in [metallurgy and steelmaking](https://filab.fr/en/sectors-of-activity/laboratory-metallurgy-steelmaking-analysis.md) analysis, provides its knowledge and expertise to carry out acid corrosion analysis and electrochemical characterization of your metal parts.

### To go further

## our electrochemical analysis services

[Open circuit potential (OCV) measurement](https://filab.fr/en/our-services/our-expertise-services/electrochemical-characterization/free-potential-measurement-ocv.md) to assess the spontaneous electrochemical behavior of a metal in a given medium (water)

Galvanic coupling study in order to analyze the interactions between two metallic materials and identify the risks of differential corrosion (e.g. Zinc vs Steel)

Characterization of protective properties: barrier properties, porosity, water permeability, delamination, filiform corrosion…

[Impedance measurement](https://filab.fr/en/our-services/our-expertise-services/electrochemical-characterization/impedance-measurement.md) to analyze the properties of interfaces between a material and its electrochemical environment

[Corrosion rate determination (LSV)](https://filab.fr/en/our-services/our-expertise-services/electrochemical-characterization/study-corrosion-speed.md) to determine the corrosion rate (mm/year) in various environments (salt water, pure water, presence of inhibitors)

Corrosion potential measurement (polarization curves) using a [Potensiostat](https://filab.fr/en/our-technical-resources/potensiostat-analysis.md)

Development of specific electrochemical tests (cathodic delamination, ACET, edge corrosion ...)

[Corrosion analysis according to ISO 3651-1](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/stainless-steel-analysis-iso-3651-1.md)

## FAQ

 In which sectors is corrosion analysis in acidic environments particularly useful?
Corrosion analysis in acidic environments is essential in sectors such as **chemicals**, **petrochemicals**, **pharmaceuticals**, **surface treatment**, **energy**, and even the **process industry** (tanks, piping, heat exchangers...).

 What types of materials can be studied?
It is possible to study **metals**, **alloys**, **coatings**, **surface treatments**, and even **metal assemblies**. The goal is to identify those that are **compatible with a given acidic environment**.

 Are these tests standardized?
Yes, many tests can be carried out **in accordance with ASTM or ISO standards**. But it is also possible to **adapt the protocols** to your specific constraints (temperature, pH, duration, type of acid...).

 What can FILAB’s laboratory bring you?
At FILAB, we offer:

- **immersion and electrochemical tests** in acidic environments
- **advanced surface analysis** (SEM-EDX, XPS, FTIR…)
- **expert interpretation** of the results, with technical recommendations
- Tailor-made support, from **failure analysis** through to **R&D validation of new materials**

 Can several materials or treatments be compared with one another?
Yes, analysis in acidic environments is ideal for **comparing different materials**, alloys, or surface treatments (passivation, coatings, anodizing, etc.). This makes it possible to **objectively choose the most high-performing solution** and the one best suited to the application.