Molekula
Potassium oxalate monohydrate
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
Potassium oxalate monohydrate is a white crystalline solid used in analytical chemistry, as a reagent in titrations, and in the preparation of other oxalate compounds. It also serves as a reducing agent in analytical work, a stain-removing agent in photographic processing, and an anticoagulant that keeps laboratory blood samples from clotting. It is stable at ambient temperatures and should be stored in a cool, dry place. CAS: 6487-48-5, Molecular formula: (COOK)₂ · H₂O, Molecular weight: 166.2156 g/mol, Signal word: Warning. Molekula supplies Potassium oxalate monohydrate 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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100 g — £26.30 per pack ex VAT · £31.56 inc. VAT
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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 |
| Identification | Conforms to reference |
| Purity | 98.5 - 101.0% |
| Insoluble Matter | ≤0.01% |
| Iron (Fe) | ≤0.001% |
| Sulphates (SO4)(2-) | ≤0.01% |
| Chlorine (Cl) | ≤0.002% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 160 °C |
Source: PubChem CID 2724193 (PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 35799175 |
| CAS Number | 6487-48-5 |
| IUPAC Name | dipotassium;oxalate;hydrate |
| Molecular Formula | (COOK)2 · H2O |
| Molecular Weight | 166.2156 |
| Exact Mass | 183.9176 |
| SMILES | C(=O)(C(=O)[O-])[O-].O.[K+].[K+] |
| InChIKey | QCPTVXCMROGZOL-UHFFFAOYSA-L |
| InChI | InChI=1S/C2H2O4.2K.H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);;;1H2/q;2*+1;/p-2 |
| PubChem CID | 2724193 |
| REACH Code | Y110 |
| HTS Code | 29171100 |
| Tariff Code | 2917110099 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H312 Harmful in contact with skin
- H315 Causes skin irritation
- H319 Causes serious eye irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, 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
- DIPOTASSIUM HYDRATE OXALATE
- dipotassium oxalate monohydrate
- dipotassium;oxalate;hydrate
- ETHANEDIOIC ACID POTASSIUM SALT (1:2) MONOHYDRATE
- Ethanedioic acid, dipotassium salt, monohydrate
- Potassium ethanedioate--water (2/1/1)
- Potassium oxalate hydrate
Frequently asked questions
What is potassium oxalate monohydrate used for?
It is commonly used as a reagent in analytical chemistry and in the preparation of other oxalate salts.
What is the chemical formula and molecular weight of potassium oxalate monohydrate?
The formula is (COOK)2 · H2O and the molecular weight is 166.2156 g/mol.
How should potassium oxalate monohydrate be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for potassium oxalate monohydrate?
Available in analytical grade; other grades may be available upon request.
Can Molekula supply potassium oxalate monohydrate in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with an order of potassium oxalate monohydrate?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
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.