Glyoxal Oxidation Method of Oxalic Acid
Glyoxal has strong reducibility, so it can be rapidly oxidized to oxalic acid under the action of strong oxidizing nitric acid. Due to factors such as raw material supply, price, and technology, this method has poor market competitiveness and has not been i...
Propylene Oxidation Method of Oxalic Acid
This oxidation process is divided into two steps: oxidizing propylene with nitric acid to convert it into α-nitro lactic acid, and then further catalytic oxidation to obtain oxalic acid. The propylene oxidation method produces industrial-grade oxalic acid...
Ethylene Glycol Nitric Acid Oxidation Method of Oxalic Acid
This oxidation process is very similar to the starch oxidation method. An aqueous ethylene glycol solution is heated to 60 °C, and mixed acid (30%–40% sulfuric acid by mass, 20%–25% nitric acid by mass) and vanadium pentoxide are added u...
Sodium Formate Method of Oxalic Acid
The production of oxalic acid by the sodium formate method is divided into the lead method and the calcium method. Carbon monoxide is absorbed by a sodium hydroxide solution to obtain sodium formate, which is then dehydrogenated to form sodium oxalate. The lat...
Oxalic Acid Carbon Monoxide Coupling Method
This method initially used palladium and copper salts as catalysts, and carried out a liquid-phase coupling reaction of carbon monoxide, oxygen, alcohol, and dilute nitric acid at 8–11 MPa and 90–100 °C. The reaction first produces oxalate ester, which ...
Oxalic Acid Carbohydrate Oxidation Method
This method uses starch and sugars as raw materials and oxidizes them with nitric acid at 73–80 °C to produce oxalic acid. Taking starch as an example, the process is as follows: 85% mass fraction starch is dispersed in an aqueous solution containing 10% ...
Main Production Processes of Oxalic Acid
A variety of production methods and synthetic routes for oxalic acid have been developed. Currently, the industrial production methods of oxalic acid include carbohydrate oxidation, carbon monoxide coupling, sodium formate method, ethylene glycol oxidation...
Product Overview of Oxalic Acid
Oxalic acid, also known as ethanedioic acid, is the simplest dicarboxylic acid with the molecular formula (COOH) 2 ⋅2H2O
It appears as colorless columnar crystals and is a common component in herbaceous plants, mostly existing in the form of potassium or calcium sa...
Oxalic Acid Proper Storage
Furthermore, store oxalic acid properly after use. Keep it away from water, oxygen, alkaline substances, and other incompatible materials. Oxalic acid is volatile and hygroscopic; it generates heat upon contact with water and may react violently when exposed to oxygen o...
Shandong Pulisi Chemical Shines at 15th UzChemPlastExpo 2026: Driving Central Asia’s Chemical Industry Growth
Tashkent, Uzbekistan – April 7, 2026 – The 15th UzChemPlastExpo, Central Asia’s premier chemical and plastics industry exhibition, kicked off today at the Tashkent International Exhibitio...
Ms. Meng Visits Shenzhen Shekou Port to Boost Logistics Strength for Global Clients
April 3, 2026, Ms. Meng, General Manager of Shandong Pulisi Chemical Co., Ltd., carried out an on-site inspection at Shekou Port in Shenzhen. During the visit, she conducted in-depth research on the shipping hub a...
Oxalic Acid Correct Dilution & Ratio
Secondly, strictly adhere to the proper ratio and dilution methods during usage. Generally, oxalic acid is available in high concentrations, and direct use increases the risk of corrosion. Thus, always follow the specified ratios and dilution procedures to...