1. The liquid medium consists of nitric acid and sulfuric acid, and the rest is water. The reaction is carried out at 80 C. Ethylene glycol is added to the mixed acid with the corresponding content of water solution.

2. Without heavy metal catalyst, no refining oxalic acid self-decomposition occurs at low reaction temperature, and no side reaction occurs. The generated nitrogen oxides are oxidized and absorbed by mother liquor, converted into nitric acid for reuse, and no non-recoverable nitrogen oxide is produced. Formation of refined oxalic acid.

What is the application of industrial oxalic acid in building materials industry

1. In order to eliminate bubbles in glass melting, industrial oxalic acid points out that a corresponding amount of clarifier must be added, and industrial salt is also a common component of clarifier, the amount of salt is about as high as glass melt.

2. Industrial oxalic acid points out that industrial salt is used as glazing agent for general rough pottery, pottery tiles and cylinders.

3. Industrial oxalic acid indicates that in order to improve the performance of enamel glaze, some additives need to be added before enameling. Salt is an additive used in enamel to increase the strength of powder and enhance the ability to resist scuffing and wear after enameling.

Do you know how oxalic acid is preserved?

1. Moisture-proof and rain-proof, separated from alkaline substances. Oxalic acid should be kept out of direct sunlight

2. Oxalic acid volatilizes when heated, so the storage temperature should not be higher than 40 degrees Celsius to prevent contact with food and avoid direct contact with skin when taking it.

3. Oxalic acid can be preserved for a long time without heat. Dissolve in water and wipe with a cotton swab. Mix some bleaching powder.

Oxalic acid can be preserved in a suitable environment for a long time without deterioration, chemical composition and molecular structure changes, which is conducive to its long-term effect, and its properties will remain unchanged independently in a cool place for a long time.