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Dimethyl oxalate

CAS No.553-90-2
Chemical Name:Dimethyl oxalate
CBNumber:CB1429840
Molecular Formula:C4H6O4
Formula Weight:118.09
MOL File:553-90-2.mol

Dimethyl oxalate Property

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 n20/D 1.39(lit.)
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)
EWG's Food Scores 1-2
FDA UNII IQ3Q79344S
NIST Chemistry Reference Ethanedioic acid, dimethyl ester(553-90-2)
EPA Substance Registry System Ethanedioic acid, dimethyl ester (553-90-2)
UNSPSC Code 12352108
NACRES NA.22

Safety

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

NFPA 704:

	1
2		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H302-H314
Precautionary statements P260-P270-P280-P301+P312-P303+P361+P353-P305+P351+P338

Dimethyl oxalate Price More Price(5)

Brand: Sigma-Aldrich(India)
Product number: 135623
Product name : Dimethyl oxalate
Purity: ReagentPlus?, 99%
Packaging: 5G
Price: ₹2403.15
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 135623
Product name : Dimethyl oxalate
Purity: ReagentPlus?, 99%
Packaging: 100G
Price: ₹3031
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 135623
Product name : Dimethyl oxalate
Purity: ReagentPlus?, 99%
Packaging: 500G
Price: ₹6181.08
Updated: 2022/06/14
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Brand: TCI Chemicals (India)
Product number: O0080
Product name : Dimethyl Oxalate
Purity: min. 99.0 %
Packaging: 25G
Price: ₹2000
Updated: 2022/05/26
Buy: Buy

Brand: TCI Chemicals (India)
Product number: O0080
Product name : Dimethyl Oxalate
Purity: min. 99.0 %
Packaging: 500G
Price: ₹4200
Updated: 2022/05/26
Buy: Buy

Dimethyl oxalate Chemical Properties,Usage,Production

Description Dimethyl oxalate is a chemical compound with formula (CH₃)₂(COO)₂. It is the dimethyl ester of oxalic acid.
General Description Dimethyl oxalate (DMO), (CH3OCO)2 is an industrial chemical intermediate with versatile properties. DMO is used as a solvent and extraction agent to produce ethylene glycol, ethanol, oxalic acid, oxamide, dyes, and medicines. Besides, dimethyl carbonate (DMC), (CH3O)2CO is attracting lots of interest because of its excellent solubility, biodegradability and low toxicity. DMC could be used as a green solvent, as electrolytes in lithium batteries, as a potential fuel additive and for polycarbonate synthesis[1].
Chemical Properties colourless crystals
Chemical Properties The empirical formula of dimethyl oxalate is C4H6O4. It exists as a liquid between its pour point (52°C) and boiling point (163.4°C). It is soluble in ethanol and ether and slightly soluble in water.
Uses 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.
Definition ChEBI: Methyl oxalate is a diester, a methyl ester and a member of dicarboxylic acids and O-substituted derivatives. It is functionally related to an oxalic acid.
Synthesis Reference(s) The Journal of Organic Chemistry, 24, p. 261, 1959 DOI: 10.1021/jo01084a633
General Description Dimethyl oxalate undergoes Cu/SiO₂ catalyzed hydrogenation to yield ethylene glycol. It undergoes selective gas-phase hydrogenation catalyzed by Ag/SiO₂to yield corresponding alcohol.
Purification Methods Crystallise the ester repeatedly from EtOH. De-gas it under nitrogen at high vacuum and distil it. [Beilstein 2 IV 1847.]
References [1] Chunzheng Wang. “Emerging Co-Synthesis of Dimethyl Oxalate and Dimethyl Carbonate Using Pd/Silicalite-1 Catalyst with Synergistic Interactions of Pd and Silanols.” SSRN Electronic Journal 71 1 (2023).