Oxalic Acid Powder CAS 144-62-7
Wholesale Oxalic Acid Powder CAS 144-62-7
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- Purity:99.8%
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Name: Oxalic Acid Powder
CAS: 144-62-7
MOQ: 1KG
Directory Guidance on Oxalic Acid Powder
Chemical Structure
Basic Info:
| Melting Point | 189.5 °C (dec.)(lit.) |
| Boiling Point | 365.1°C (estimate) |
| Bulk Density | 750kg/m3 |
| Density | 0.99 g/mL at 25 °C |
| Vapor Density | 4.4 (vs air) |
Oxalic Acid Powder Introduction:
Oxalic Acid, chemically named oxalic acid, has a molecular formula of HOOC-COOH or H₂C₂O₄ and a molecular weight of 90.03. It is the simplest and most representative dicarboxylic acid compound. Structurally, it is composed of two adjacent carboxyl groups directly connected. This special configuration gives it stronger acidity and unique physical and chemical properties than monocarboxylic acids.
Pure Oxalic Acid Powder usually exists in the form of dihydrate, which is a colorless, transparent monoclinic flaky or prismatic crystal with a clear sour taste. At 101-102°C, the dihydrate loses its crystal water and transforms into anhydrous orthorhombic crystals, with a melting point of 189.5°C (decomposition).
Oxalic Acid Powder is easily soluble in polar solvents such as water, ethanol, and glycerol, slightly soluble in ether, and almost insoluble in non-polar solvents such as benzene, chloroform, and petroleum ether. The aqueous solution is moderately acidic and can form complexes or insoluble salts with a variety of metal ions. This property is the basis of its many applications.
In nature, Oxalic Acid Powder is widely present in many plants, especially in some herbs such as rhubarb, spinach, sorrel (hence the name), and beet leaves. The content is relatively high, usually in the form of potassium or calcium salts. Oxalic Acid can also be produced by biological metabolic pathways. It is one of the metabolic intermediates of ascorbic acid (vitamin C) in the body.
Biogenic Oxalic Acid Powder plays an important role in certain pathological conditions (such as kidney stone formation), which is related to its ability to form extremely insoluble Oxalic Acid calcium salt precipitation. In industrial ecosystems, it also plays an important role and is one of the common organic acids produced by fungal metabolism. This natural universality provides a basic understanding of its industrial application at the ecological level.
From the core perspective of chemical properties, the reaction behavior of Oxalic Acid Powder is extremely rich and strategically valuable. Its strong acidity makes it an important acidifying agent or buffer component. It exhibits good reducibility, especially under heating conditions, it can be quantitatively oxidized by strong oxidants such as potassium permanganate and ozone to release carbon dioxide gas. This property makes it widely used as a reducing medium in titration analysis and certain chemical syntheses.
Oxalic Acid Powder has typical irritating chemical properties. Whether it is solid dust or solution, contact with skin and mucous membranes will cause chemical burns. Ingestion is highly corrosive to the digestive tract, and can affect calcium ion metabolism and kidney function through absorption, and can be fatal in severe cases. Its aqueous solution has a significant corrosive effect on most metal materials (especially carbon steel and ordinary stainless steel), and the material selection of storage and processing equipment (such as special stainless steel, glass lining, plastic) requires highly specialized design.
Nature and Specifications:
| Item | Specification |
| Product Name | Oxalic Acid Powder |
| CAS No. | 144-62-7 |
| Appearance | Powder |
| Shelf Life | 2 years |
| Packing | As Your Requirements |
| Refractive Index | 1.4261 (estimate) |
| Fp | 101-157°C |
| Storage Temp. | Store below +30°C. |
| Solubility | water: soluble108g/L at 25°C |
Product service:
- Certificate Of Analysis (COA)
- Material Safety Data Sheet (MSDS)
- Route of synthesis (ROS)
- Method of Aanlysis (MOA)
- Nuclear Magnetic Resonance (NMR)
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- Free Sample
- Factory audit
The Application Situation Of Oxalic Acid Powder
The metallurgical industry is one of the core pillars of Oxalic Acid Powder with huge consumption, especially in the extraction and refining of rare earth metals. In the rare earth hydrometallurgical process, based on the key chemical properties of the product that can generate a specific crystal form and extremely insoluble Oxalic Acid rare earth precipitate with rare earth ions, it constitutes the core unit operation for highly selective separation, enrichment and preliminary purification of rare earth and non-rare earth impurities.
Metal surface treatment is another iconic traditional mainstream application direction of Oxalic Acid Powder. With its strong acidity and excellent metal chelating solubility, it has long-term and mature engineering practice in removing stubborn oxide layers, oil residues and early process conversion films on metal surfaces. The treatment process of generating a conversion protective film on the surface of a specific substrate to enhance the adhesion of subsequent coatings still retains application space in the field of fine manufacturing.
In the field of dyes, Oxalic Acid Powder participates in the reaction process as a mordant or an acidifying agent or reducing agent for the synthesis of specific intermediates, affecting the color development properties or molecular structure of the final dye. In the cellulose modification industry, Oxalic Acid solution treatment can give man-made fibers or textiles specific properties (such as wrinkle resistance and weight gain).
In the field of cleaning and descaling maintenance, the chemical dissolution characteristics of Oxalic Acid Powder are engineered for application. It can efficiently dissolve insoluble calcium scale and specific rust (iron oxide) to form corresponding soluble complexes. Based on this, Oxalic Acid or its compound preparations with other additives are widely used in the cleaning and descaling of the internal and external surfaces of industrial equipment such as boilers, heat exchangers, food processing equipment, evaporators, etc., especially in the mild acid cleaning scheme involving stainless steel equipment in the food and beverage industry.
The design of industrial catalytic systems is technically dependent on the characteristics of Oxalic Acid Powder. It plays the role of an auxiliary catalyst in specific gas-phase organic synthesis reactions, and is usually introduced in the form of metal Oxalic Acid salt complexes to affect the electronic state and dispersion of the main catalyst or inhibit the sintering of metal active centers.
In some complex homogeneous catalytic systems for the synthesis of fine chemicals, oxalic acid derivatives are introduced as ligand precursors or additives, which may be involved in stabilizing catalytically active intermediates and regulating reaction selectivity and rate. In polymer preparation (such as polycondensation catalyst compositions of polyethylene terephthalate PET) and certain petrochemical hydrogenation processes, oxalic acid powder or its salts are also used as co-catalysts or inducers in a small number of cases. Although the application amount is small, it is crucial to the precise regulation of catalytic performance.
The Advantages Of Oxalic Acid Powder
The core chemical property of Oxalic Acid Powder is that it has both strong acidity and chelating reducing ability. It can effectively dissolve and complex a variety of high-valent metal ions, and has excellent removal efficiency for common calcium and iron scales. This solubility comes from its ability to generate stable and soluble coordination compounds, and there is a lot of room for engineering design optimization.
Its crystal form (dihydrate or anhydrous crystal type) has stable physical and chemical properties, which is convenient for accurate measurement, stable storage, and processing and transportation under normal conditions. As a dibasic acid, it exhibits unique synergistic effects or special steric hindrance effects (compared with monocarboxylic acids) in certain chemical reactions, thereby improving the efficiency of specific synthetic pathways (such as the construction of certain ester ring compounds).
As a reducing agent used in the field of titration analysis (such as calibrating the concentration of potassium permanganate solution), it has the technical characteristics of high reaction quantification, sharp endpoint, and single product (mainly carbon dioxide and water). The specificity of its complexing ability in metal cleaning and impurity precipitation control ensures the stable operation of key processes. The precise expression of all these intrinsic physicochemical properties is the molecular level reason why it can become the “technical preferred chemical” in many industrial processes.
Competitive in terms of process economy. The modern large-scale production process of Oxalic Acid Powder has been extremely mature and reliable after decades of development. The sodium formate oxidation-acidification route has established a huge production capacity worldwide, realizing continuous and highly automated advanced manufacturing, with obvious economies of scale, making the unit production cost of mainstream grade Oxalic Acid Powder raw materials controlled at an extremely attractive level.
The core raw materials of the process route have a wide range of stable sources and low supply chain risks. The products can be stably produced through conventional recrystallization, filtration, drying and refining processes to meet the specifications of different industries (industrial grade, refined grade, food grade and even electronic grade). The process is relatively simple, and the energy and water consumption are within the industry specifications.
In addition, the solid physical density of Oxalic Acid Powder is moderate, which is convenient for commercial transportation and storage stacking at different distances; its aqueous solution has a wide range of concentrations, which can flexibly cope with various on-site application conditions and is easy to scale up; it can be easily designed into a special formula compounded with other functional additives (surfactants, corrosion inhibitors, chelating agents) to further amplify the synergistic effect. The overall economy of this process chain makes it more competitive and user sticky than single functional chemicals.
Multiple application ranges build a broad market foundation. The value of a chemical is ultimately reflected in how many practical industrial problems it can solve, and the application spectrum of Oxalic Acid Powder is surprisingly broad, spanning from “mineral separation” (rare earth refining), “equipment maintenance” (scaling and cleaning), “material manufacturing” (catalyst precursors, ceramic glazes) to “biotechnology flank” (specific diagnostic preparations).
Its mechanism of action is diverse: it is both a strong proton source (acid pickling and acidification), an electron donor (reduction and rust removal, titration analysis), and an efficient metal complex carrier (precipitation separation, cleaning and dissolution of specific metals). This multifunctional characteristic that crosses the boundaries of traditional industries makes the market demand for Oxalic Acid Powder independent of the development rhythm of a single industrial sector, and the risk is greatly dispersed.
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Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
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