Effective Oxalic Acid Stain Remover easily eliminates tough stains & yellowing on surfaces.

Title: What is Oxalic Acid? | The Ultimate Guide to Uses, Benefits & Safety

Content:
Oxalic acid is a powerful organic acid with the chemical formula H₂C₂O₄. Found naturally in many plants like rhubarb and spinach, it is also produced industrially for a vast array of applications. This versatile compound exists as a white crystalline powder that is highly soluble in water. On this page, we explore the science behind oxalic acid, its most common industrial and domestic uses, and the critical safety protocols for handling it. As a leading supplier, we provide high-purity oxalic acid in various grades to meet the precise needs of manufacturers, artisans, and professionals worldwide. Discover why this essential chemical is a cornerstone in industries from metal cleaning to wood restoration.

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Molecular Formula: C₂H₂O₄·2H₂O (Dihydrate)
CAS No.: 6153-56-6 (Dihydrate)
Appearance: White crystalline powder or granules, highly soluble in water.

Stains and yellowing are the nemeses of aesthetics, especially when they appear on valuable stone or beloved fabrics. Our effective oxalic acid stain remover leverages the reducing and bleaching properties of oxalic acid to specifically target these challenges. For stone surfaces (like quartz, tiles, some granites), it penetrates micro-pores, reducing dark rust stains, plant pigments, tea stains, etc., into colorless substances or converting them into soluble components for easy rinsing. For white cotton or linen fabrics that have yellowed due to iron ion contamination or long-term oxidation, oxalic acid effectively chelates the iron ions and breaks down the pigment structures causing the yellowing, achieving safe bleaching and restoring the fabric's bright, original color. Identifying the stain type before application is crucial: this product is highly effective against rust, ink, plant juices, certain dyes, and general yellowing, but it is ineffective on protein-based stains (blood, milk) or grease. When applying to fabrics, first dilute in a basin, soak the garment, agitate periodically, and once the stain fades, rinse thoroughly with plenty of water. When treating stone, ensure the surface is properly sealed and rinse thoroughly after stain removal to avoid residue. A cautious spot test is the critical first step to successful stain removal.

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