Cobalt(II) oxalate dihydrate - Co ≥31% , CAS No.5965-38-8

CAS: 5965-38-8 Cat. No.: C104338 Molecular Weight: 182.98 EC Number: 628-928-7
AVAILABLE TO ORDER
GRADE & PURITY Co ≥31%
Synonyms
Cobalt(II) oxalate dihydrate, Puratronic | Cobalt(II) oxalate dihydrate, Reagent Grade | Cobalt, [ethanedioato(2-)- | cobalt oxalate dihydrate | EO1, | Cobalt(II) oxalate dihydrate | MFCD03414148 | E?-cobalt(2+) dihydrate oxalate | C2H4CoO6 | cobalt(2+);o
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
C104338-25g
4
$14.90
100g
C104338-100g
4
$26.90
500g
C104338-500g
2
$93.90
Enter a quantity for the sizes you want to add.
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Why this grade

Co ≥31% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Cobalt(II) oxalate dihydrate, Puratronic | Cobalt(II) oxalate dihydrate, Reagent Grade | Cobalt, [ethanedioato(2-)- | cobalt oxalate dihydrate | EO1, | Cobalt(II) oxalate dihydrate | MFCD03414148 | E?-cobalt(2+) dihydrate oxalate | C2H4CoO6 | cobalt(2+);o
Specifications & Purity
Co ≥31%
Storage
Room temperature
Shipped In
Normal
Names and Identifiers
Pubchem Sid488197883
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488197883
Canonical SmilesC(=O)(C(=O)[O-])[O-].O.O.[Co+2]
IUPAC Namecobalt(2+);oxalate;dihydrate
InChIKeyMWHSMSAKVHVSAS-UHFFFAOYSA-L
INCHI1S/C2H2O4.Co.2H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);;2*1H2/q;+2;;/p-2
Isomeric SMILES C(=O)(C(=O)[O-])[O-].O.O.[Co+2]
WGK Germany 2
RTECS AG3150000
Alternate CAS 814-89-1
Molecular Weight 182.98
Reaxy-Rn 3757841
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3757841&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassDicarboxylic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentDicarboxylic acids and derivatives
Alternative Parents Carboxylic acid salts  Carboxylic acids  Organic oxides  Organic cobalt salts  Hydrocarbon derivatives  Carbonyl compounds  Organic cations  
Molecular FrameworkAliphatic acyclic compounds
Substituents Dicarboxylic acid or derivatives - Carboxylic acid salt - Organic transition metal salt - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic cobalt salt - Organic salt - Organooxygen compound - Carbonyl group - Organic cation - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as dicarboxylic acids and derivatives. These are organic compounds containing exactly two carboxylic acid groups.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

11 results found

Lot NumberCertificate TypeDateItem
F2224048Certificate of AnalysisApr 02, 2026 C104338
F2224049Certificate of AnalysisApr 02, 2026 C104338
F2525059Certificate of AnalysisJul 08, 2025 C104338
H2110246Certificate of AnalysisMay 12, 2025 C104338
H2110254Certificate of AnalysisMay 12, 2025 C104338
G1501027Certificate of AnalysisApr 11, 2023 C104338
B2308088Certificate of AnalysisFeb 16, 2023 C104338
A2508227Certificate of AnalysisMay 31, 2022 C104338
B2308089Certificate of AnalysisMay 31, 2022 C104338
F2224047Certificate of AnalysisMay 31, 2022 C104338
I2320099Certificate of AnalysisMay 31, 2022 C104338

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Chemical and Physical Properties
SolubilitySoluble in aqueous ammonia. Insoluble in water. Slightly soluble in acids
SensitivityMoisture sensitive.
Melt Point(°C)230°C
Molecular Weight182.980 g/mol
XLogP3
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count0
Exact Mass182.934 Da
Monoisotopic Mass182.934 Da
Topological Polar Surface Area82.300 Ų
Heavy Atom Count9
Formal Charge0
Complexity60.500
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count4
Citations of This Product
References
1. Yongsong Ma, Kaifa Du, Yifan Guo, Mengyi Tang, Huayi Yin, Xuhui Mao, Dihua Wang.  (2021)  Electrolytic core–shell Co@C for diethyl phthalate degradation.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2021.134065]
2. Qianwei Li, Miao Zhang, Biao Wei, Wei Lan, Qinghong Wang, Chunmao Chen, Huazhang Zhao, Daoqing Liu, Geoffrey Michael Gadd.  (2024)  Fungal biomineralization of toxic metals accelerates organic pollutant removal.  CURRENT BIOLOGY,      [PMID:38663397] [10.1016/j.cub.2024.04.005]
3. Zhaoyi Han, Hao Shi, Wentao Qiu, Dongdong Zhu, Wei Li, Dihua Wang.  (2024)  Graphitized carbon encapsulated Co anode electrochemically activating persulfate for sulfamethoxazole degradation.  Journal of Environmental Chemical Engineering,      [PMID:] [10.1016/j.jece.2024.114847]
Solution Calculators
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