---
title: Oxalic Acid
date: 2025-03-05T09:09:50Z
modified: 2026-09-14T09:15:24Z
permalink: "https://allanchem.com/oxalic-acid/"
type: page
status: publish
excerpt: ""
wpid: 4377
timestamp: 2026-09-14T09:15:24Z
tags: []
---

##### CAS Number

6153-56-6















##### Grade

ACS















##### Packaging

Plastic Drum







































Oxalic Acid is a dicarboxylic acid with the chemical formula H2C2O4. It is naturally occurring in many plants and vegetables and is also synthesized industrially. Oxalic acid is colorless, odorless, and highly acidic. It is soluble in water and forms oxalate salts when neutralized.
**Chemical Formula:** H2C2O4
**Appearance:** A colorless crystals or a white crystalline powder
**Uses:**
**Bleaching Agent:** Oxalic acid is utilized as a bleaching agent in textile and wood industries. It effectively removes stains and discoloration from fabrics and wood fibe**rs.**
**Analytical Chemistry:** In laboratory settings, it is used as a reagent in chemical synthesis, titrations, and complexometric analyses. It serves as a standard for calibrating pH meters and acidity measurements. Oxalic acid solutions are used to prepare buffer solutions with known pH values.
**Food Additive:** Oxalic acid and its salts are occasionally used in food processing as acidity regulators and preservatives.
**Additional Applications:** It removes tarnish, corrosion, and oxidation from metal objects, restoring their shine and luster. Oxalic acid solutions are often used in metal restoration and conservation projects.







































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