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Manganese(II) oxalate

Also known as: Manganese oxalate, Manganese(2+) oxalate, Ethanedioic acid manganese(2+) salt, Manganese(II) oxalate (1:1), Manganese oxalate (MnC2O4)

Manganese(II) oxalate (CAS 640-67-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C2MnO4 and a molecular weight of 142.95700 g/mol. Key properties include a boiling point of 365.1ºC at 760 mmHg, a density of 2.4 g/cc and a flash point of 188.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
640-67-5
Jingsj CID
J-929-0
Molecular Formula
C2MnO4
Molecular Weight
142.95700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point365.1ºC at 760 mmHg
Density2.4 g/cc
Flash Point188.8ºC
Exact Mass142.91800
PSA52.60000

Customs & Trade Information

HS Code2917119000
Summary2917119000 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 Manganese(II) oxalate?

The CAS number of Manganese(II) oxalate is 640-67-5.

What are the molecular formula and molecular weight of Manganese(II) oxalate?

Manganese(II) oxalate has molecular formula C2MnO4 and molecular weight 142.95700 g/mol.

What are the upstream and downstream products of Manganese(II) oxalate?

For Manganese(II) oxalate, Upstream Products: Manganese(II) acetate tetrahydrate, Ammonium oxalate monohydrate, Oxalic acid dihydrate; Downstream Products: Manganese dioxide.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Manganese(II) oxalate (CAS 640-67-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-929-0 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.