Cas no 6153-56-6 (Oxalic acid dihydrate)

Oxalic acid dihydrate is an effective and versatile chemical reagent used in various applications. Its key advantages lie in its high purity and stability, making it suitable for use in analytical chemistry, metal cleaning and etching, and laboratory settings where precision and accuracy are paramount.
Oxalic acid dihydrate structure
Oxalic acid dihydrate structure
Product Name:Oxalic acid dihydrate
CAS No:6153-56-6
MF:C2H6O6
MW:126.065441608429
MDL:MFCD00149102
CID:46451
PubChem ID:24854873
Update Time:2026-05-14

Oxalic acid dihydrate Chemical and Physical Properties

Names and Identifiers

    • Oxalic acid dihydrate
    • ETHANEDIOIC ACID
    • ETHANEDIOIC ACID DIHYDRATE
    • ETHANEDIONIC ACID
    • ETHANEDIONIC ACID DIHYDRATE
    • OXALIC ACID
    • OXALIC ACID 2H2O
    • OXALIC ACID-2-HYDRATE
    • Ethandionic acid, dihydrate
    • Oxalsαure-dihydrat
    • Ethanedioic acid,Dicarboxylic acid
    • OXALIC ACID DIHYDRATE ACS REAGENT
    • OXALIC ACID DIHYDRATE, ACS
    • OXALIC ACID-2-HYDRATE R. G., REAG. ACS, REAG. ISO, REAG. PH. EUR.
    • OXALIC ACID-2-HYDRATE TECHNICAL
    • OXALIC ACID-2-HYDRATE EXTRA PURE
    • DIMETHYL OXYLATE DIHYDRATE
    • Oxalic acid dihydrate, ACS grade
    • Ethanedioic acid, dihydrate
    • 0K2L2IJ59O
    • oxalic acid;dihydrate
    • AK158933
    • Oxalic acid dihydrate, 99+%, extra pure
    • Oxalic acid dihydrate, 99.5+%, ACS reagent
    • Oxalic acid, dihydrate
    • C2H2O4.2H2O
    • oxalicacid dihydrate
    • dihydrate oxalic acid
    • oxalic acid di-hydrate
    • PubChem17416
    • OO paragraph signthornEa
    • OXALIC ACID, ACS
    • Oxalic Acid Refined Grade
    • HO2CCO2H.2H2O
    • Oxalic acid dihydrate, 97%
    • KS
    • Oxalic acid dihydrate,99.5%
    • MDL: MFCD00149102
    • Inchi: 1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
    • InChI Key: GEVPUGOOGXGPIO-UHFFFAOYSA-N
    • SMILES: O([H])C(C(=O)O[H])=O.O([H])[H].O([H])[H]
    • BRN: 3679436

Computed Properties

  • Exact Mass: 126.01600
  • Monoisotopic Mass: 126.016
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 4
  • Hydrogen Bond Acceptor Count: 6
  • Heavy Atom Count: 8
  • Rotatable Bond Count: 1
  • Complexity: 71.5
  • Covalently-Bonded Unit Count: 3
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • Topological Polar Surface Area: 76.6

Experimental Properties

  • Color/Form: Anhydrous oxalic acid is a colorless and odorless transparent crystal or white powder
  • Density: 1,65 g/cm3
  • Melting Point: 104-106?°C (lit.)
  • Boiling Point: 108-109°C
  • Flash Point: 157°C
  • Refractive Index: 1.45560
  • PH: ~1.0 (25℃, 1M in H2O)
  • Solubility: H2O: soluble1M at 20°C, clear, colorless
  • Water Partition Coefficient: 138 g/L (20 oC)
  • Stability/Shelf Life: Stable. Incompatible with bases, acid chlorides, steel, silver, silver compounds, moisture. Avoid contact with metals.
  • PSA: 93.06000
  • LogP: -0.97300
  • Solubility: Soluble in water, ethanol and ether. Insoluble in benzene and chloroform.
  • Merck: 14,6911
  • Vapor Pressure: <0.01 mmHg ( 20 °C)
  • Sublimation Point: 157 oC

Oxalic acid dihydrate Security Information

  • Symbol: GHS07
  • Signal Word:Warning
  • Hazard Statement: H302,H312
  • Warning Statement: P280
  • Hazardous Material transportation number:UN 3261 8/PG 3
  • WGK Germany:1
  • Hazard Category Code: 21/22-41
  • Safety Instruction: S24/25
  • RTECS:RO2450000
  • Hazardous Material Identification: Xn
  • Risk Phrases:R21/22
  • Packing Group:III
  • Hazard Level:8
  • Packing Group:III
  • Safety Term:8
  • HazardClass:8
  • PackingGroup:III
  • TSCA:Yes
  • Storage Condition:Store in cold storage.

Oxalic acid dihydrate Customs Data

  • HS CODE:29171100
  • Customs Data:

    China Customs Code:

    2917119000

    Overview:

    2917119000 Other oxalates and esters.Regulatory conditions:nothing.VAT:17.0%.Tax refund rate:9.0%.MFN tariff:6.5%.general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to, Terephthalic acid please specify4-CBAvalue, Terephthalic acid please specifyP-TLacid value, Terephthalic acid please indicate color, Terephthalic acid please indicate moisture

    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%

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Oxalic acid dihydrate Production Method

Oxalic acid dihydrate Suppliers

Jiangsu Kolod Food Ingredients Co.,ltd
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(CAS:6153-56-6)Oxalic Acid
Order Number:KLD052
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Quantity:food grade
Purity:99%
Pricing Information Last Updated:Thursday, 3 July 2025 17:01
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Suzhou Senfeida Chemical Co., Ltd
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(CAS:6153-56-6)Oxalic acid dihydrate
Order Number:sfd3186
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Quantity:200kg
Purity:99.9%
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Amadis Chemical Company Limited
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(CAS:6153-56-6)Oxalic acid dihydrate
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Quantity:1kg/100g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 09:13
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Tiancheng Chemical (Jiangsu) Co., Ltd
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(CAS:6153-56-6)Oxalic acid dihydrate;ACS, 99.5-102.5%
Order Number:LE13701;LE3420011
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Oxalic acid dihydrate Spectrogram

1H NMR 300 MHz DMSO
1H NMR
13C NMR
13C NMR

Additional information on Oxalic acid dihydrate

Oxalic acid dihydrate (CAS No. 6153-56-6): A Comprehensive Overview in Modern Chemical and Pharmaceutical Applications

The oxalic acid dihydrate, with the chemical formula C?H?O?·2H?O and the CAS number 6153-56-6, is a significant compound in the realm of chemistry and pharmaceuticals. This crystalline solid, characterized by its strong acidic properties, has found diverse applications across various scientific and industrial domains. Its molecular structure, consisting of two carboxylic acid groups, contributes to its unique reactivity and utility in both laboratory settings and commercial products.

In recent years, the oxalic acid dihydrate has garnered attention for its role in advanced material synthesis and biomedicine. One of the most notable applications is its use as a chelating agent, where it forms stable complexes with metal ions. These complexes are not only pivotal in analytical chemistry for precise metal ion quantification but also play a crucial role in pharmaceutical formulations aimed at metal ion detoxification and therapeutic intervention.

Recent studies have highlighted the potential of oxalic acid dihydrate in the development of novel drug delivery systems. Its ability to form hydrogels with biopolymers has opened up avenues for creating controlled-release formulations, which are essential for optimizing drug efficacy and minimizing side effects. This innovation aligns with the broader trend in pharmaceutical science towards more sophisticated and patient-centric drug delivery mechanisms.

The compound's application extends to the field of nanotechnology, where it serves as a precursor for synthesizing metal-organic frameworks (MOFs). These MOFs have remarkable applications in gas storage, separation technologies, and catalysis. The unique structural properties of MOFs derived from oxalic acid dihydrate have been explored in cutting-edge research aimed at developing sustainable energy solutions and environmental remediation technologies.

In the realm of environmental chemistry, oxalic acid dihydrate has been utilized in water treatment processes to remove heavy metals from industrial effluents. Its high affinity for certain metal ions makes it an effective agent for purification purposes. This application underscores the compound's versatility and its importance in addressing environmental challenges through chemical innovation.

The pharmaceutical industry has also leveraged the properties of oxalic acid dihydrate in the formulation of topical treatments for skin conditions. Its keratolytic properties help in exfoliating dead skin cells, making it valuable in cosmetic products designed to improve skin texture and appearance. Additionally, ongoing research suggests potential applications in anti-inflammatory formulations, where its chelating properties may contribute to reducing inflammation by modulating metal ion homeostasis within cells.

From a synthetic chemistry perspective, oxalic acid dihydrate serves as a fundamental building block for more complex organic molecules. Its role as an intermediate in various organic reactions underscores its importance in industrial chemical synthesis. The compound's reactivity allows chemists to construct intricate molecular architectures that are essential for developing new materials with tailored properties.

The safety profile of oxalic acid dihydrate is another critical aspect that merits discussion. While it is not classified as a hazardous material under standard regulatory frameworks, proper handling procedures are necessary due to its corrosive nature. In laboratory environments, researchers adhere to strict protocols to ensure safe usage, including adequate ventilation and personal protective equipment (PPE). These measures highlight the importance of responsible chemical handling in advancing scientific knowledge responsibly.

The future prospects of oxalic acid dihydrate are promising, with ongoing research exploring new applications across multiple disciplines. As scientists continue to uncover its multifaceted roles, from nanotechnology to biomedicine, the compound is poised to remain a cornerstone of innovation in chemical science. Its adaptability and utility ensure that it will continue to be a valuable asset in both academic research and industrial applications.

Recommended suppliers
Jiangsu Kolod Food Ingredients Co.,ltd
(CAS:6153-56-6)Oxalic Acid
KLD052
Purity:99%
Quantity:food grade
Price ($):Inquiry
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Suzhou Senfeida Chemical Co., Ltd
(CAS:6153-56-6)Oxalic acid dihydrate
sfd3186
Purity:99.9%
Quantity:200kg
Price ($):Inquiry
Email