A3124812
Dimethyl oxalate , 98% , 553-90-2
Synonym(s):
Dimethyl oxalate;Oxalic acid dimethyl ester, Methyl oxalate
CAS NO.：553-90-2
Empirical Formula: C4H6O4
Molecular Weight: 118.09
MDL number: MFCD00008442
EINECS: 209-053-6
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 50-54 °C (lit.) |
| Boiling point: | 163.5 °C (lit.) |
| Density | 1.148 g/mL at 25 °C (lit.) |
| vapor pressure | 3 hPa (20 °C) |
| refractive index | n |
| Flash point: | 167 °F |
| storage temp. | Store below +30°C. |
| solubility | ethanol: soluble50mg/mL, clear to very slightly hazy, colorless |
| form | Crystalline Solid |
| color | Colorless to white |
| Specific Gravity | 1.148 |
| PH | 1 (60g/l, H2O, 20℃) |
| Water Solubility | 60 G/L (25 ºC) |
| Merck | 14,6106 |
| BRN | 1071744 |
| Dielectric constant | 3.0（20℃） |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, acids, bases, reducing agents. |
| InChIKey | LOMVENUNSWAXEN-UHFFFAOYSA-N |
| LogP | -0.170 |
| CAS DataBase Reference | 553-90-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Ethanedioic acid, dimethyl ester(553-90-2) |
| EPA Substance Registry System | Ethanedioic acid, dimethyl ester (553-90-2) |
Description and Uses
Dimethyl oxalate is a chemical compound with formula (CH3)2(COO)2. It is the dimethyl ester of oxalic acid.
Dimethyl oxalate is used as an alternate fuel in the direct oxidation fuel cell. It is involved in the catalytic hydrogenation using Cu/SiO22ub> to prepare ethylene glycol. It is also used in the selective gas-phase hydrogenation catalyzed by Ag/SiO2 to get the corresponding alcohol.
Safety
| Symbol(GHS) |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302-H314 |
| Precautionary statements | P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338 |
| Hazard Codes | Xi,Xn |
| Risk Statements | 36/38-36-22 |
| Safety Statements | 26-36/37-24/25-23 |
| RIDADR | 1759 |
| WGK Germany | 3 |
| RTECS | RO2850000 |
| Autoignition Temperature | 480 °C |
| TSCA | Yes |
| HS Code | 2917 11 00 |
| HazardClass | 6.1(b) |
| PackingGroup | III |
