Copper(II) oxalate hemihydrate
Also known as: COPPER(II) OXALATE 0.5-WATER, COPPER(II) OXALATE HEMIHYDRATE, Copper(2+) oxalate, Copper(II)oxalatehemihydrate, Cupric oxalate hemihydrate, Cupric oxalate, EINECS 212-411-4, Ethanedioic acid, Cupric Salt, Ethanedioic acid, copper(2+) salt (1:1), MFCD00150451, Oxalic acid copper (2+) salt (1:1), Oxalic acid, copper (2+) salt (1:1), caswellno248a, copper(2+) ethanedioate, copperoxalate(cuc2o4), oxalic acid, copper salt
Copper(II) oxalate hemihydrate (CAS 5893-66-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H6Cu2O9 and a molecular weight of 325.17500 g/mol. Key properties include a boiling point of 365.1ºC at 760 mmHg and a density of 1.28g/cm3. It is listed by 3 suppliers, from 0.64 to 823.00 CNY. Record last updated Nov 2, 2026.
- CAS No.
- 5893-66-3
- Jingsj CID
- J-1329633-7
- Molecular Formula
- C4H6Cu2O9
- Molecular Weight
- 325.17500 g/mol
- Category
- Organic Acids
- Last updated
- 11/2/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to OrderPlatform-operated | 99% 500g | ¥320.00 | $0.1 /gBest ¥0.64/g CNY | CN China MOQ 500g | |
Made to Order | 98% 1000g | ¥823.00 | $0.12 /g ¥0.82/g CNY | CN China MOQ 1000g | |
Made to Order | 98% 250g | ¥265.00 | $0.16 /g ¥1.06/g CNY | CN China MOQ 250g |
Physicochemical Properties
| Boiling Point | 365.1ºC at 760 mmHg |
|---|---|
| Density | 1.28g/cm3 |
| Exact Mass | 150.909256 |
| PSA | 52.60000 |
| Refractive Index | 1.659 |
Customs & Trade Information
| HS Code | 2917119000 |
|---|---|
| Summary | 2917119000 oxalic acid salts and esters VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Copper(II) oxalate hemihydrate?
The CAS number of Copper(II) oxalate hemihydrate is 5893-66-3.
What are the molecular formula and molecular weight of Copper(II) oxalate hemihydrate?
Copper(II) oxalate hemihydrate has molecular formula C4H6Cu2O9 and molecular weight 325.17500 g/mol.
Which suppliers offer Copper(II) oxalate hemihydrate?
3 supplier(s) listed; reference unit price ¥0.64–823.00 /g.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Copper(II) oxalate hemihydrate (CAS 5893-66-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1329633-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.