Shandong Pulisi Chemical provides comprehensive solutions across strategic chemical categories. Discover our top-tier export items featuring high purity, rigorous safety certification, and optimized bulk packaging configurations.
Oxalic acid (ethanedioic acid, $H_2C_2O_4$) is a critical dicarboxylic acid with vast applications across modern industries. Because of its strong chelating action, acidity, and reducing potential, industrial procurement departments globally seek top-performing factories to maintain steady production lines. As downstream industries strive to improve efficiency and reduce environmental footprints, the demand for reliable sources of high-purity Oxalic Acid has grown significantly.
In rare earth mining and refining operations, oxalic acid serves as a high-efficiency precipitant. It facilitates the separation of individual rare earth elements from ores by forming insoluble oxalates, which are subsequently calcined to produce purified rare earth oxides. This step is critical for manufacturing permanent magnets, smartphone displays, and electric vehicle batteries.
Oxalic acid acts as a powerful metal rust remover and cleaning agent. It quickly converts insoluble iron compounds into soluble complex ions, restoring surfaces in automotive manufacturing, marine maintenance, and municipal infrastructure. Its chemical composition makes it suitable for rust stain removal without excessively corroding steel substrates.
The textile and leather industries rely on oxalic acid as a mordant in dyeing processes and as a bleaching agent in wood, cork, and straw processing. It helps remove rust spots, excess tanning agents, and iron-tanning salts, ensuring uniform coloring and clean fabric finishes.
Industrial manufacturing of oxalic acid typically utilizes two main chemical synthesis pathways: the Sodium Formate Dehydrogenation Process and the Nitric Acid Carbohydrate Oxidation Process. Shandong Pulisi Chemical Co., Ltd. focuses on advanced engineering methods to ensure high purity while keeping energy consumption low.
| Specification Parameter | Industrial Grade (99.6% Dihydrate) | Refined / Premium Grade | Anhydrous Oxalic Acid |
|---|---|---|---|
| Purity ($H_2C_2O_4 \cdot 2H_2O$) | ≥ 99.6% | ≥ 99.8% | ≥ 99.0% |
| Sulfate ($SO_4^{2-}$) | ≤ 0.08% | ≤ 0.03% | ≤ 0.05% |
| Heavy Metals (as Pb) | ≤ 10 ppm | ≤ 5 ppm | ≤ 8 ppm |
| Chloride ($Cl^-$) | ≤ 0.002% | ≤ 0.001% | ≤ 0.0015% |
| Ash Content | ≤ 0.08% | ≤ 0.04% | ≤ 0.10% |
| Iron ($Fe$) | ≤ 15 ppm | ≤ 5 ppm | ≤ 10 ppm |
The Sodium Formate Route: Sodium formate, synthesized from carbon monoxide and sodium hydroxide, is heated rapidly under pressure to 360–400°C. This causes dehydrogenation, forming sodium oxalate. The resulting sodium oxalate is converted to calcium oxalate with milk of lime, and then acidified with sulfuric acid to yield oxalic acid. This method produces low heavy metal and chloride levels, making it suitable for metallurgical separation and electronic chemical formulations.
Global oxalic acid pricing is influenced by key variables, including raw material inputs (coal, natural gas, sulfur, and soda ash), electricity costs, and container shipping rates. Understanding these market factors helps procurement managers mitigate risk and optimize purchasing schedules.
The cost of manufacturing oxalic acid depends on the prices of carbon monoxide, sodium hydroxide, and sulfuric acid. Fluctuations in energy markets affect industrial chemical prices, making raw material index tracking essential for buyers.
Oxalic acid is classified as a hazardous chemical for maritime transit. Shipping costs are tied to container availability at key export hubs like Qingdao and Tianjin. Partnering with suppliers that operate domestic port warehouses helps reduce transport costs.
Regulatory actions and environmental audits in chemical production hubs can affect supply volumes and prices. Manufacturers with modern waste gas and wastewater treatment facilities ensure consistent operations and supply stability.
Established in 2006, Shandong Pulisi Chemical Co., Ltd. (Stock Code: 307785) is a manufacturer and distributor of industrial, mining, agricultural, and feed chemical raw materials. We supply downstream industries worldwide, helping customers improve product performance and maintain cost competitiveness.
Our company is built on customer-focused service, fast technical support, and strict quality control. Over nearly two decades, we have established long-term relationships with global corporations, including Saint-Gobain and China National Petroleum Corporation (CNPC).
To ensure timely delivery, we maintain regional warehouses at Qingdao Port, Tianjin Port, and critical land ports like Alashankou and Khorgos on the western border. This distribution network enables us to support global supply chains and manage complex logistics routes efficiently.
Our production processes and supply chains comply with international regulatory standards. Shandong Pulisi Chemical Co., Ltd. is ISO9001:2015 certified, German BV verified, and maintains REACH / K-REACH registrations along with Kosher, Halal, and FAMI-QS certifications.
We regularly participate in international chemical exhibitions to connect with industry partners and showcase our latest chemical raw material solutions. This direct engagement helps us gather market feedback to continuously improve our product quality and logistical services.
In addition to oxalic acid, we supply a range of chemical raw materials formulated for specific industrial, mining, and agricultural applications. Review our core catalog below:
We manufacture Sodium Formate (granules and crystals), Potassium Formate (liquid and solid), and Calcium Formate (industrial and feed grade). These chemicals are widely used as oil drilling additives, concrete accelerators, leather tanning agents, and animal feed additives.
We supply high-purity Sodium Sulfide and Sodium Hydrosulfide (NaHS), which are key reagents in mineral flotation and mining recovery. They are also used in heavy metal precipitation for wastewater treatment and hair removal in leather processing.
Our catalog includes Calcium Chloride, Calcium Acetate, and related raw materials. These products serve as de-icing agents, industrial desiccants, stabilizers in polymer chemistry, and nutrients in food processing applications.
Our products are used in diverse chemical processing applications worldwide. We supply raw materials tailored to the technical requirements of several major industrial sectors:
Global chemical procurement requires reliable quality, consistent supply, and transparent pricing. We design our business processes to meet the demands of international logistics and manufacturing schedules:
We cooperate with leading companies worldwide, providing chemical materials that support critical industrial processes.
Get answers to common questions about purchasing, quality standards, and logistics for our chemical products.
We export chemical raw materials worldwide, supported by comprehensive quality control and logistics management:
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