Recommended H2C2O4·2H20 Oxalic Acid 99.6% White Crystal Particle

Key attributes

Chemical formula: C₂H₂O₄·2H₂O

CAS: 144-62-7

Purity: 99.6%

Production standard

COA need meets GB/T1626-2008:

References: Riel Chemical Lab1&2, National public service platform for standards information.

1. Basic information of oxalic acid

Chemical name: oxalic acid (oxalic acid)
Chemical form: C₂H₂O₄
Molecular weight: 90.03 g/mol
Appearance: Colorless transparent crystal or white powder
Smell: unscented
Density: 1.90g /cm³ (anhydrous)
Melting point: 189.5°C (decomposition)
2. Chemical properties of oxalic acid

Acid: Oxalic acid is a strong organic acid with two ionizable hydrogen ions (pKa₁=1.25, pKa₂=4.14).
Reducibility: oxalic acid has strong reducibility and can be oxidized to carbon dioxide and water.
Chelation: oxalate can form stable chelates with metal ions, such as calcium oxalate.
Thermal stability: decomposition when heated above 150°C, forming formic acid,

carbon monoxide and carbon dioxide.
3. Preparation method of oxalic acid

Industrial preparation method

Sodium formate method:
Equation: 2HCOONa → (COONa)₂ + H₂
Steps: Sodium formate is heated to 400°C to produce sodium oxalate,

and then acidified with sulfuric acid to obtain oxalic acid.
Carbohydrate oxidation method:
₆. : C₆H₁₂O₆ + 6HNO₃ → 3C₂H₂O₄ + 6NO + 6H₂O
Steps: oxalic acid is produced by oxidation of glucose or starch catalyzed by nitric acid.
Laboratory preparation method

Glycol oxidation method:
Glycol is oxidized to oxalic acid by potassium permanganate under acidic conditions.
4. Application fields of oxalic acid

Industrial field

Metal cleaning: used to remove rust and oxides from metal surfaces.
Textile dyeing: as a mordant, improve the adhesion of the dye.
Chemical synthesis: Used to synthesize oxalate, oxalate ester and other chemicals.
Rare earth extraction: used for the separation and purification of rare earth elements.
Daily life

Cleaning agent: Used to remove dirt and scale on surfaces such as toilets and tiles.
Wood bleaching: Used for the bleaching of wood and paper.
Medical field

Disinfectant: oxalic acid has a certain bactericidal effect.
Drug synthesis: Used to synthesize certain drug intermediates.
Laboratory use

Analytical reagent: Used for quantitative analysis of calcium, rare earth elements, etc.
Buffer solution: A buffer solution used to formulate a specific pH.
5. Safety information of oxalic acid

Toxicity: oxalic acid is toxic to human body, excessive intake can lead to kidney stones,

digestive tract damage, etc.
Corrosive: oxalic acid is strongly irritating and corrosive to the skin and mucous membrane.
Protective measures:
Wear protective gloves, goggles, and a mask when operating.
Avoid direct contact with skin and eyes.
Store in a cool, dry and well-ventilated place, away from alkalis and oxidants.
6. Storage and transportation of oxalic acid

Storage conditions: Keep sealed, avoid contact with alkaline substances and oxidants.
Packing specifications: 25kg/ bag or 50kg/ barrel,

can also be customized according to customer needs.
Transportation requirements: Transport according to common chemicals,

avoid high temperature and humidity.
7. Market trend of oxalic acid

Demand growth: With the development of metal processing,

textile printing and dyeing industries, the demand for oxalic acid continues to grow.
Environmental protection trend: Environmentally friendly oxalic acid products are more popular,

promoting the development of the industry in the direction of green.
Emerging markets: The Asia-Pacific region has become the main consumer market for oxalic acid,

especially China and India.
8. Technological innovation of oxalic acid

Green production process: The use of low carbon, low pollution preparation technology,

reduce waste water, exhaust gas emissions.
High purity products: Develop high purity oxalic acid to

meet the needs of high-end fields such as electronics and medicine.
Recycling: Research oxalic acid waste recycling and reuse technology to reduce resource waste.
9. Customized service of oxalic acid

Purity custom: Provide 99% and above purity of oxalic acid.
Particle size customization: Adjust powder size according to customer needs.
Packaging customization: Provide bags, barrels, tons of bags and other packaging forms.
10. The environmental advantages of oxalic acid

Biodegradable: oxalic acid can be decomposed by microorganisms in

the natural environment and has no long-term pollution to the environment.
Low toxicity: oxalic acid is less toxic than other strong acids.
Recycling: Reducing waste through recycling.
11. Customer case of oxalic acid

Metal processing industry: A metal processing company uses our oxalic acid to

clean metal surfaces, significantly improving production efficiency.
Textile printing and dyeing industry: A textile company uses our oxalic acid as a

mordant to improve the adhesion of the dye.
Laboratory research: A scientific research institution used our high purity oxalic acid

for rare earth element analysis and obtained accurate results.
12. Frequently Asked Questions about oxalic acid

Q: What is the shelf life of oxalic acid?
A: Oxalic acid usually has a shelf life of 2 years in dry conditions.
Q: Can oxalic acid be mixed with other chemicals?
A: You are advised to consult the technical support team according to the nature of the chemical.
Q: How to choose the right oxalic acid products?
A: According to the application scenario, we provide a variety of specifications and purity for customers to choose.
13. Oxalic acid industry certification

ISO 9001: Quality Management System certification.
ISO 14001: Environmental Management System certification.
REACH: Compliance with the EU Regulation on Registration, Evaluation,

authorisation and Restriction of Chemicals.
14. Oxalic acid technical support

Product selection: Recommend suitable products according to customer needs.
Usage guide: Provide detailed instructions and technical support.
Problem solving: Quickly respond to customer problems and provide solutions.

FAQ

1.What is your payment term?

We can accept T/T and L/C at sight as payment term.

2.Are you able to deliver on time?

Of course! we specialised in this line for many years,

many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!

3.Do you provide free sample?

Yes, we can provide free sample . You only need to take the express fee.

4.How about the price?Can you make it cheaper?

We always take the customer’s benefit as the top priority.

Price is negotiable under different conditions, we are assuring you to get the most competitive price.

5.Can I visit your company and factory in China?

Sure. You are very welcomed to visit our company in Weifang, China.

(We will have someone responsible for picking up and dropping off at Weifang Airport)

6.What if there is a quality problem?

We have a professional and perfect after-sales service team, timely for you to deal with all problems.