Hefei TNJ chemical industry co.,ltd
Diamond Supplier Enterprise Certification
- Diamond
Supplier - 9th
years
Diamond Supplier Enterprise Certification
Product Certification&
Enterprise Certification
Country: 
China (Mainland)
Business Type:Trading Company
Tel: +86-551-65418695
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Province/state: Anhui
City: Hefei
Street: B911 Xincheng Business Center, Qianshan Road, Hefei Anhui China
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ISO Certification
Technology: Technology innovation is our eternal pursuit,or we will be left behind.Our technology experts,all from famous universities and institutes,has rich experience and high achievements in chemical research.This makes sure that our technology support is reliable and authoritative.All of self-owned fine chemicals are manufactured strictly in accordance with international standard.We have our own independent lab test center,and also has scientific cooperation with local colleges and institutes.
Product information
Product name: Oxalic Acid
Synonyms: Ethanedionic acid; Oxalic acid anhydrous; Refined Oxalic Acid
CAS#: 144-62-7
EINECS#: 205-634-3
Molecular Formula: C2H2O4
Molecular Weight: 126.07
Description
Melting point: 189-191°C
Boiling point: 365.1°C at 760 mmHg
Flash point:188.8°C
Water Solubility: 90 g/L (20°C)
Appearance: White crystal
Specification
| Item | Standerd | Result |
| Assay,% | ≥99.5 | 99.9 |
| Transparency of solution,% | ≤3 | 2 |
| Insoluble in water,% | ≤0.005 | 0.002 |
| Residue on ignition(as SO4),% | ≤0.02 | 0.01 |
| Chloride,% | ≤0.002 | 0.0005 |
| Sulfate,% | ≤0.002 | 0.001 |
| Total nitrogen,% | ≤0.002 | 0.001 |
| Calcium,% | ≤0.003 | 0.001 |
| Iron,% | ≤0.0005 | 0.0005 |
| Heavy metals (as Pb),% | ≤0.0004 | 0.0002 |
Packing
25kg/drum or according to per customer's requirement
Delivery
Common chemical for Land, Sea and Air delivery
Application
Oxalic Acid is widely used as complexing,masking,precipitating and reducing agent.It can be used in rare earth extraction,textile printing and dyeing,leather processing,catalyst preparation and metal surface cleaning,and also can be used as pharmaceutical intermedaites.
