Potassium oxalate monohydrate - AR, ≥99.8% , CAS No.6487-48-5

CAS: 6487-48-5 Cat. No.: P111570 Molecular Weight: 184.23 Beilstein Registry Number: 3752576 EC Number: 613-722-1
AVAILABLE TO ORDER
GRADE & PURITY AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results. ≥99.8%
Synonyms
dipotassium;oxalate;hydrate | Q27265423 | EN300-310729 | Potassium oxalate hydrate | MFCD00150033 | C2H2K2O5 | Potassium ethanedioate--water (2/1/1) | 6S7F3685W2 | A834911 | QCPTVXCMROGZOL-UHFFFAOYSA-L | Potassium oxalate monohydrate | UNII-6S7F3685W2 | E
Storage
Protected from light,Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100g
P111570-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$9.90
500g
P111570-500g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$17.90
Enter a quantity for the sizes you want to add.
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Why this grade

AR, ≥99.8% AR for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Protected from light,Room temperature Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

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

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Literature proof

Cited in 33 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
dipotassium;oxalate;hydrate | Q27265423 | EN300-310729 | Potassium oxalate hydrate | MFCD00150033 | C2H2K2O5 | Potassium ethanedioate--water (2/1/1) | 6S7F3685W2 | A834911 | QCPTVXCMROGZOL-UHFFFAOYSA-L | Potassium oxalate monohydrate | UNII-6S7F3685W2 | E
Specifications & Purity
AR, ≥99.8%
Storage
Protected from light, Room temperature
Shipped In
Normal
Grade
AR
Purity
≥99.8%
Names and Identifiers
Canonical SmilesC(=O)(C(=O)[O-])[O-].O.[K+].[K+]
IUPAC Namedipotassium;oxalate;hydrate
InChIKeyQCPTVXCMROGZOL-UHFFFAOYSA-L
INCHI1S/C2H2O4.2K.H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);;;1H2/q;2*+1;/p-2
Isomeric SMILES C(=O)(C(=O)[O-])[O-].O.[K+].[K+]
WGK Germany 1
Molecular Weight 184.23
Beilstein 3752576
Reaxy-Rn 3752576
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3752576&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.

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🔬 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 potassium salts  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Dicarboxylic acid or derivatives - Carboxylic acid salt - Organic alkali metal salt - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic potassium salt - Organic salt - Organooxygen compound - Carbonyl group - 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.

23 results found

Lot NumberCertificate TypeDateItem
D2610332Certificate of AnalysisApr 17, 2026 P111570
D2610305Certificate of AnalysisApr 17, 2026 P111570
D2610331Certificate of AnalysisApr 17, 2026 P111570
I2512445Certificate of AnalysisSep 16, 2025 P111570
I2512444Certificate of AnalysisSep 16, 2025 P111570
I2512438Certificate of AnalysisSep 16, 2025 P111570
C2520918Certificate of AnalysisMar 25, 2025 P111570
C2520931Certificate of AnalysisMar 25, 2025 P111570
C2520932Certificate of AnalysisMar 25, 2025 P111570
C2520930Certificate of AnalysisMar 25, 2025 P111570
H2428027Certificate of AnalysisAug 30, 2024 P111570
L2304073Certificate of AnalysisMay 08, 2023 P111570
J2425148Certificate of AnalysisMay 08, 2023 P111570
I2322007Certificate of AnalysisMay 08, 2023 P111570
D2324635Certificate of AnalysisMay 08, 2023 P111570
D2324623Certificate of AnalysisMay 08, 2023 P111570
C2421052Certificate of AnalysisMay 08, 2023 P111570
G2205354Certificate of AnalysisJul 11, 2022 P111570
G2205353Certificate of AnalysisJul 11, 2022 P111570
A2310424Certificate of AnalysisJul 11, 2022 P111570
B2226142Certificate of AnalysisMar 03, 2022 P111570
I2128244Certificate of AnalysisOct 08, 2021 P111570
B2226131Certificate of AnalysisOct 08, 2021 P111570

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Chemical and Physical Properties
SensitivityLight sensitive.
Molecular Weight184.230 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count5
Rotatable Bond Count0
Exact Mass183.918 Da
Monoisotopic Mass183.918 Da
Topological Polar Surface Area81.300 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
Documents & Articles
Citations of This Product
References
1. Hongyu Lu, Feilin Zou, Xiaowei Liu, Wenjing Zhang, Ling Zhang, Chengxun Deng, Zhimin Yu, Olivier Monfort, Peng Cheng.  (2023)  Z-scheme g-C3N4/α-FOD heterojunction-assisted persulfate activation for degradation of tetracycline hydrochloride under visible light: Insights into mechanism.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2023.147224]
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15. Manjiao Deng, Mao Ye, Tao Li, Haitao Huang, Wen-Xiang Yuan, Heng Jiang, Peng Lin, Xierong Zeng, Shanming Ke.  (2016)  Synthesis of ferroelectric KNbO3 nanosheets by liquid exfoliation of layered perovskite K2NbO3F.  JOURNAL OF ALLOYS AND COMPOUNDS,      [PMID:] [10.1016/j.jallcom.2016.11.209]
16. Jinghua Li, Yan Hu, Yanhua Hou, Xinkun Shen, Gaoqiang Xu, Liangliang Dai, Jun Zhou, Yun Liu, Kaiyong Cai.  (2015)  Phase-change material filled hollow magnetic nanoparticles for cancer therapy and dual modal bioimaging.  Nanoscale,  (19): (9004-9012).  [PMID:25921793] [10.1039/C5NR01744K]
17. Linghui Kong, Yuewen Shao, Runxing Sun, Shu Zhang, Yi Wang, Jun Xiang, Song Hu, Dong Wang, Chuanjun Leng, Xun Hu.  (2024)  Activation of spring jasmine wood impregnated with homologous bio-oil: Influence of organics in bio-oil on pore development.  FUEL,      [PMID:] [10.1016/j.fuel.2024.131419]
18. Rongkun Pan, Chensheng Wang, Qingsheng Zhang, Chenzhuo Song, Chang Lu, Ligang Zheng, Bei Pei, Lei Chen.  (2025)  Experiment and mechanism of explosion suppression thermal properties of multicomponent powder.  THERMOCHIMICA ACTA,      [PMID:] [10.1016/j.tca.2025.179953]
19. Shan Zhong, Longyun Dai, Hao Xu, Xin-Chun Yang, Xiaojun Zheng, Shuang Wang.  (2024)  Highly porous carbon with selective transformation of nitrogen groups boosts the capacitive performance through boric acid template assisted strategy.  Journal of Energy Storage,      [PMID:] [10.1016/j.est.2024.112867]
20. Shan Zhong, Hao Xu, Xiaojun Zheng, Guanlin Li, Shuang Wang.  (2024)  High-value conversion of invasive plant into nitrogen-doped porous carbons for high-performance supercapacitors.  JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,      [PMID:] [10.1016/j.jaap.2024.106814]
21. Lulan Chen, Letian Chen, Zijing Chen, Jianqiang Wu, Tiantian Lou, Yiming Li, Zhen Zhou, Hongshi Li, Guoran Li, Qingbo Meng.  (2024)  Ionic Bonding Without Directionality Facilitates Efficient Interfacial Bridging for Perovskite Solar Cells.  Small,      [PMID:38342703] [10.1002/smll.202308964]
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