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{"title":"99.5% Industrial Grade Oxalic Acid For Textile Treatment And High Solubility","imgUrl":"https:\/\/img.chinax.com\/nimg\/8d\/a4\/b5dea66d1d510d005d822e7e558c-200x200-1\/99_5_25_industrial_grade_oxalic_acid_for_textile_treatment_and_high_solubility_rust_removal.jpg","attrs":{"Brand Name":"SiChuan HongJian","Model Number":"Oxalic acid","Place of Origin":"China","Minimum Order Quantity":"10Tons"}}
{"title":"Wood Bleach And Rust Removal High Purity Oxalic Acid Powder 144 62 7","imgUrl":"https:\/\/img.chinax.com\/nimg\/e0\/92\/d37da53a7c40541082b37494115e-200x200-1\/wood_bleach_and_rust_removal_high_purity_oxalic_acid_powder_144_62_7.jpg","attrs":{"Brand Name":"sichuan hongjian","Model Number":"25kg\/bag","Place of Origin":"China","Minimum Order Quantity":"10tons"}}
{"title":"High Purity Oxalic Acid Ethanedioic Acid For Metal Household Cleaning Textile","imgUrl":"https:\/\/img.chinax.com\/nimg\/83\/68\/01d02434f514d8f5d2928d87f38d-200x200-1\/high_purity_oxalic_acid_ethanedioic_acid_for_metal_household_cleaning_textile_treatment.jpg","attrs":{"Brand Name":"SiChuan HongJian","Model Number":"Oxalic acid","Place of Origin":"China","Minimum Order Quantity":"10Tons"}}
{"title":"H2c2o4 High Purity Oxalic Acid Dihydrate For Wood Bleach And DIY Cleaning","imgUrl":"https:\/\/img.chinax.com\/nimg\/8d\/a0\/96069935d3ed0c138abc4a521e62-200x200-1\/h2c2o4_high_purity_oxalic_acid_dihydrate_for_wood_bleach_and_diy_cleaning_supplies.jpg","attrs":{"Brand Name":"SiChuan HongJian","Model Number":"Oxalic acid","Place of Origin":"China","Minimum Order Quantity":"10Tons"}}
Oxalic Acid Anhydrous represents the most concentrated form of this versatile dicarboxylic acid, completely free from water of crystallization. This premium-grade chemical serves as an indispensable bleaching agent in multiple industries and a critical reagent in rare earth extraction processes. With its higher acidity and reactivity compared to the dihydrate form, anhydrous oxalic acid (H₂C₂O₄) offers superior performance in applications where water content must be minimized.
The manufacturing process involves careful dehydration under controlled conditions to prevent decomposition, resulting in a product with exceptional purity and chemical stability. Our anhydrous oxalic acid undergoes rigorous quality control, including Karl Fischer titration to confirm minimal moisture content and spectroscopic analysis to verify chemical structure integrity.
Bleaching Agent Applications
Oxalic acid's role as a bleaching agent leverages both its reducing properties and metal-chelating capabilities. In the textile industry, it serves as a critical component in "oxalic acid bleaching" or "reductive bleaching" processes, particularly for protein fibers like wool and silk.
Gently removes natural yellowish tints through reduction of colored chromophores
Simultaneously chelates iron and other metal ions that contribute to discoloration
Ideal for restoring antique textiles and maintaining brightness in luxury fabrics
Controls brightness reversion in pulp and paper manufacturing
Effective for wood bleaching of hardwoods like oak and maple
The anhydrous form's concentration advantage allows for more compact formulation and reduced transportation costs in industrial bleaching operations. Modern environmental considerations further enhance oxalic acid's appeal as it breaks down into naturally occurring compounds without generating persistent pollutants.
Rare Earth Extraction Applications
The rare earth extraction industry depends critically on oxalic acid's unique precipitation chemistry for separating and purifying rare earth elements (REEs). These technologically essential metals exhibit remarkably similar chemical properties that make separation exceptionally challenging.
Forms insoluble oxalate salts with exceptional selectivity over common impurity metals
Anhydrous form preferred due to higher chemical purity and absence of water
pH-dependent precipitation allows sequential separation of different rare earth groups
Simplifies subsequent solvent extraction processes, reducing chemical consumption
Key reagent for recovering valuable rare earths and cobalt from spent batteries
Technical Specifications & Quality
Parameter
Specification
Assay (Minimum)
99.8%
Sulfate Content
Below 0.01%
Chloride Content
Under 0.001%
Heavy Metals (as Pb)
Less than 5 ppm
The crystalline structure exhibits uniform particle size distribution optimized for both dissolution rate and dust control. Storage recommendations emphasize cool, dry conditions in sealed containers to prevent moisture absorption and caking.
Additional Industrial Applications
Beyond its primary roles, anhydrous oxalic acid finds applications in chemical synthesis as a reducing agent and precursor for oxalate esters, in catalyst manufacturing for producing cobalt oxalate used in petroleum refining, and in pharmaceutical synthesis as an intermediate for certain antibiotics and antiviral drugs.
The absence of water molecules makes it particularly valuable in organic synthesis where water could interfere with reaction mechanisms or promote hydrolysis. Our technical support extends to application-specific guidance, including precipitation stoichiometry calculations, filtration optimization, and waste management strategies.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2013
Total Annual:
7000000-10000000
Employee Number:
130~150
Ecer Certification：
Verified Supplier
Sichuan Hongjian Chemical is a comprehensive enterprise specializing in the trade of chemical products. Since entering the chemical industry in 1995, it has always been dedicated to providing supply chain services for chemical raw materials, fine chemicals and environmental protection ... Sichuan Hongjian Chemical is a comprehensive enterprise specializing in the trade of chemical products. Since entering the chemical industry in 1995, it has always been dedicated to providing supply chain services for chemical raw materials, fine chemicals and environmental protection ...
