| Formula / Notation | C2H2O4 |
|---|---|
| CAS Number | 144-62-7 |
| Molecular Weight | 90.03 |
| Melting Point | 372 °F (Decomposes) (NTP, 1992) |
| Boiling Point | Sublimes (NIOSH, 2024) |
| Density | 1.9 at 59 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | 50 to 100 mg/mL at 75 °F (NTP, 1992) |
| Appearance | Oxalic acid is an odorless white solid. Sinks and mixes with water. (USCG, 1999) |
| Also Known As | ethanedioic acid; 144-62-7; Aktisal; Aquisal; Oxiric acid; Oxaalzuur; Oxalsaeure; Kyselina stavelova; Acidum oxalicum; Acide oxalique |
| Category | Acids |
What is Oxalic acid?
Oxalic acid is an alpha,-dicarboxylic acid that is ethane substituted by carboxyl groups at positions 1 and 2. It has a role as a plant metabolite, a human metabolite and an algal metabolite. It is a conjugate acid of an oxalate and an oxalate(1-).
Formula & Notation
IUPAC Name: oxalic acid
Other Names / Synonyms: ethanedioic acid; 144-62-7; Aktisal; Aquisal; Oxiric acid; Oxaalzuur; Oxalsaeure; Kyselina stavelova; Acidum oxalicum; Acide oxalique
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 372 °F (Decomposes) (NTP, 1992) |
| Boiling Point | Sublimes (NIOSH, 2024) |
| Density | 1.9 at 59 °F (USCG, 1999) - Denser than water; will sink |
| Molecular Weight | 90.03 |
| Solubility | 50 to 100 mg/mL at 75 °F (NTP, 1992) |
| Appearance | Oxalic acid is an odorless white solid. Sinks and mixes with water. (USCG, 1999) |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Oxalic acid is an alpha,-dicarboxylic acid that is ethane substituted by carboxyl groups at positions 1 and 2. It has a role as a plant metabolite, a human metabolite and an algal metabolite. It is a conjugate acid of an oxalate and an oxalate(1-).
Used in industrial chemical synthesis, fertilizer production, battery electrolytes, metal processing, and laboratory acid-base reactions.
Corrosive. Causes severe burns to skin, eyes, and respiratory tract. Wear appropriate PPE including gloves, goggles, and lab coat. Consult SDS before use.
The formula or notation for Oxalic acid is: C2H2O4