Molekula
Oxalic acid anhydrous
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Oxalic acid anhydrous is a white crystalline organic acid used in cleaning, bleaching, and as a reagent in chemical synthesis. It is a strong dicarboxylic acid with high solubility in water and ethanol. CAS: 144-62-7, Molecular formula: HO2CCO2H, Molecular weight: 90.0349 g/mol, Storage: Ambient, Signal word: Warning. Molekula supplies Oxalic acid anhydrous from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £20.00 per pack ex VAT · £24.00 inc. VAT
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100 g — £25.00 per pack ex VAT · £30.00 inc. VAT
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1 kg — £71.60 per pack ex VAT · £85.92 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Heavy metals | ≤ 0.001% |
| Chloride (Cl-) | ≤ 0.002% |
| Assay | ≥ 99.0% |
| Residue on Ignition | ≤ 0.08% |
| Iron (Fe) | ≤ 0.0015% |
| Sulphates (SO4)(2-) | ≤ 0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Odour | Odorless. |
| Melting Point | 189.5 °C |
| Vapour Pressure | 0.000234 mmHg |
Source: PubChem CID 971 (HSDB, ICSC, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 20381060 |
| CAS Number | 144-62-7 |
| IUPAC Name | oxalic acid |
| EC Number | 205-634-3 |
| Molecular Formula | HO2CCO2H |
| Molecular Weight | 90.0349 |
| Exact Mass | 89.9953 |
| SMILES | C(=O)(C(=O)O)O |
| InChIKey | MUBZPKHOEPUJKR-UHFFFAOYSA-N |
| InChI | InChI=1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6) |
| PubChem CID | 971 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| Tariff Code | 29171100 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H312 Harmful in contact with skin
Precautionary statements
- P232 Protect from moisture
- P270 Do not eat, drink or smoke when using this product
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P307+311 IF exposed: Call a POISON CENTER or doctor/physician
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Acide oxalique
- Acidum oxalicum
- Aktisal
- Aquisal
- ethanedioic acid
- Kyselina stavelova
- Oxaalzuur
- oxalic acid
- Oxalsaeure
- Oxiric acid
Frequently asked questions
What is oxalic acid anhydrous used for?
It is commonly used as a reducing agent, cleaning agent, and in the synthesis of other chemicals, including metal chelates and pharmaceuticals.
What is the chemical formula and molecular weight of oxalic acid anhydrous?
The formula is HO2CCO2H and the molecular weight is 90.0349 g/mol.
How should oxalic acid anhydrous be stored?
It should be stored at ambient temperature, in a dry, well-ventilated area, away from incompatible materials.
What grade is available for oxalic acid anhydrous?
Available in reagent grade; please contact us for custom grades or specifications.
Can Molekula supply oxalic acid anhydrous in bulk?
Yes, we can supply oxalic acid anhydrous in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of oxalic acid anhydrous?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.