Oxalic Acid
Oxalic acid is a white crystal, often containing two molecules of crystal water. When heated to 98 ~ 100ºC, oxalic acid hydrate loses crystal water. Anhydrous oxalic acid is a colorless, odorless solid with delixing properties. It has two crystal forms, diamond and monoclinic. At room temperature, rhombic oxalic acid crystals are thermodynamically stable, while monoclinic oxalic acid crystals are thermodynamically metastable. The melting point and density of rhombic oxalic acid crystals are slightly higher than that of monoclinic oxalic acid crystals. Anhydrous oxalic acid melting point 189.5ºC (decomposition). Partial decomposition begins at 157ºC I When accelerated heating, all oxalic acid is decomposed to form formic acid, carbon monoxide and water. Soluble in water and alcohol, slightly soluble in ether, insoluble in benzene, chloroform and petroleum ether. Risk of burning in high heat, open flame or contact with oxidants. Decomposition by heating produces toxic gases.
Oxalic acid Specification
Test Item |
Standard |
Test Results |
Test Methods |
Superior Product |
First-Class Product |
Qualified Product |
Appearance |
White Crystal Powder |
Qualified |
Visual Inspection |
Oxalic acid
( H2C2O4.2H2O) |
≥99.6% |
≥99.0% |
≥96.0% |
99.92% |
GT-B 1626-2008 |
Sulfate (as SO4) |
≤0.07% |
≤0.10% |
≤0.20% |
0.003% |
GT-B 1626-2008 |
Burning residue |
≤0.01% |
≤0.08% |
≤0.20% |
0.003% |
GT-B 1626-2008 |
Heavy Metal (as Pb) |
≤0.0005% |
≤0.001% |
≤0.02% |
0.0005% |
GB-T7532 |
Iron (Fe) |
≤0.0005% |
≤0.0015% |
≤0.01% |
0.0002% |
GT-B 1626-2008 |
Chloride (Cl) |
≤0.0005% |
≤0.002% |
≤0.01% |
0.0005% |
GT-B 1626-2008 |
Calcium(Ca) |
≤0.0005% |
|
|
0.00003% |
GT-B 1626-2008 |
Conclusion: |
The product was tested and determined to be Superior Product |
1. Metal cleaning agent:
oxalic acid can dissolve oxides, alkali deposits and scale on the metal, often used to clean metal surfaces, such as stainless steel, copper, aluminum, etc.
2. Dye industry:
oxalic acid can be used as an intermediate for dye printing and dyeing, for the synthesis of dyes and pigments.
3. Catalyst:
oxalic acid can be used as a catalyst for some chemical reactions, such as esterification reaction, synthesis of carboxylate, etc.
4. Health and medical use:
oxalic acid can be used as cleaning agent, disinfectant and laxative. It is also used in some drugs to treat certain urinary stones.
5. Electronics industry:
oxalic acid can be used as a cleaning and polishing agent for electronic components.
6. Textile industry:
oxalic acid can be used as a solvent for cellulose fibers, for the processing of cellulose fibers.
1.Packaging: 25KG/ Plastic woven bag ,25 tons/20GP, ascustomer'requirment.
2.Delivery Detail: Prompt delivery by Sea transport after payment confirmed.
Henan Yeedok Industry Co., Ltd. Located at Zhengzhou Jinshui Zone and covering an area of 10,000M2,is a Chemical high-tech group company with an integrated system of researching, development,production, marketing and sales ability. It mainly produces Inorganic Chemicals, Organic Chemicals, Food and Feed Additives. Our products are widely applied to detergent, water treatment, rubber, plastic, leather, tanning, textiles, paint, oil drilling, food, feeding and pharmaceutical. With ISO9001 quality management system, all our products are manufactured by strict procedures. With the advanced test equipments in our Lab, all shipments are tested carefully before delivery to assure the quality consistency. The quality standard for each customer is established. All the sample and shipment lots have been filed detailed and be able to traced. Through many years of development, our company has become a large-scale enterprise with research, production, assembly and marketing capabilities. Guaranteeing stable and timely supply, credible quality and sincere service, our products sell well in both domestic and overseas markets. Our aim is to provide customers the high quality products, most competitive pricing, the shortest delivery time and the unequaled service. We pursue the management tenet of "Quality is Superior, Service is Supreme, Reputation is First", and will sincerely create and share success with all clients. We welcome you to contact us for more information and look forward to working with you!
1. Supply high quality products with a reasonable price in additives industry.
2. Arrange the orders and shipping with cus requests in time, According to the different countries export policy provide complete customs clearance documents.
3. Provide agile and safe payments.
4. We can in charge of all if our products have quality problems.
5. Provide a price trend, ensure the clients can know about marketing informations in time.
1. What's your payment terms?
T/T ,L/C,D/A,D/P or other.
2. What's your delivery time?
Usually we will arrange the shipment in 7 -15 days.
3. How about the validity of the products?
According to the products you ordered.
4. How about the packing?
Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.
5. What documents you provide?
Usually, we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificat and Origin certificate. If your markets have any special requirements, let us know.
6. What is loading port?
China's main port.
If you can give me a inquiry, we will give you the most competitive price.
------Amy