Oxalic acid is a strong cleaner that can quickly remove tough stains like rust, ink, and mineral marks from clothes and other surfaces. It’s very effective on stubborn spots and is used in homes and industries. You can find it in powder or crystal form at hardware stores, cleaning shops, or online. Always handle it carefully and follow safety instructions for the best results. #cleaningtips #stainremoval #oxalicacid #cleaninghacks #householdtips #easycleaning #rustremoval #share | Dr Pranav Shar