oxalicacidchem@gmail.com
![[ 复制 ]Oxalic Acid Anhydrous 99%min Grade II](/Uploads/products/2022-10-11/en-Oxalic-Acid-Anhydrous-China-1.jpg)
Name Oxalic acid
Synonyms Oxalic acid anhydrous; Ethanedionic acid
Molecular Formula C2H2O4
Molecular Weight 90.03
CAS Registry Number 144-62-7
EINECS 205-634-3
Density 1.9
Melting point 189-191 ºC
Sublimation 101-157 ºC
Water solubility 90 g/L (20 ºC)
Physical properties
1, properties: colorless transparent crystal or powder. Oxalic Acid Anhydrous China is crystal structure has two forms, namely α (rhomboid) and β (monoclinic). No smell, sour taste.
2, melting point: α type: 189.5℃, β type: 182℃.
3, boiling point: molecular stereo model boiling point 150℃(sublimation).
4. Relative density: 1.653(dihydrate), 1.9(anhydrous). Type α : 1.900, β : 1.895.
5, refractive index: 1.540.
6, stability: 189.5℃ decomposition.
Specification:
| Appearance | White Crystalline Powder |
| Purity | 98% min |
| Water | 1.5% max |
| Sulphate group (SO4-2) | 0.10% max |
| Chorides (CI-) | 0.002% max |
| Heavity metal (Pb+2) | 0.001% max |
| Ash | 0.08% max |
| Iron content(Fe+3) | 0.0015% max |
Package: In 25KG kraft paper bag or 50KG Fiber Drum.
Application:
Used as experimental reagent, chromatographic reagent, dye intermediate and reference material.
Used to remove calcium for wastewater treatment.
The combination of oxalic acid is a waterlet substance of metal ions.
Oxalic Acid Anhydrous China is used as a catalyst for synthetic organic chemistry and analysis reagents.
