Description
Specifications Table
Product Name – Dimethyl carbonate, 99%
Quantity/Pack Size – 100g, 500g, 2500g
Form – Liquid
Grade – Laboratory Reagent
Application – Solvent, methylation reagent, electrolyte component
Product Overview
Dimethyl carbonate (DMC) is a high-purity (99%) colorless liquid solvent with exceptional chemical stability and low environmental impact. As a polar aprotic solvent, it offers excellent solvency for both polar and non-polar compounds while maintaining a favorable toxicity profile compared to traditional solvents like dimethylformamide or dichloromethane. Its molecular structure (CH3O)2CO provides unique reactivity, making it particularly valuable for methylation reactions in organic synthesis. The compound’s low boiling point (90°C) and high vapor pressure enable easy removal from reaction mixtures, while its miscibility with most organic solvents enhances versatility in laboratory applications. DMC serves as an effective alternative to phosgene in carbonylation reactions and functions as a key component in lithium-ion battery electrolytes due to its wide electrochemical window. The reagent’s hygroscopic nature requires proper storage to maintain purity, with moisture content typically maintained below 0.05% in laboratory-grade material. Its flash point of 17°C necessitates careful handling, though its relatively low acute toxicity (LD50 13g/kg oral in rats) makes it safer than many alternative solvents in its class.
FAQs
1. What is the typical moisture content in this 99% dimethyl carbonate?
The laboratory-grade dimethyl carbonate maintains moisture content below 0.05%, ensuring high purity for sensitive applications. The product is packaged under nitrogen to prevent moisture absorption during storage.
2. Can this DMC be used as a direct replacement for dimethylformamide in reactions?
While dimethyl carbonate shares some solvent properties with DMF, it cannot serve as a direct 1:1 replacement due to differences in polarity, boiling point, and solvating power. Reaction conditions typically require optimization when substituting DMC for DMF.
3. What materials are compatible with dimethyl carbonate for storage?
Store dimethyl carbonate in glass or PTFE-lined containers. It may degrade some plastics and rubber seals over time. Always use containers with proper ventilation to prevent pressure buildup from its moderate volatility.
4. How does the purity of this DMC compare to battery-grade material?
This 99% pure laboratory-grade DMC meets general research requirements but contains higher water and impurity levels than battery-grade material (typically 99.9%+). For electrolyte applications, additional purification may be necessary.
5. What stabilization methods are used in this product?
The product contains no added stabilizers, relying on high-purity distillation and nitrogen packaging to maintain quality. The absence of stabilizers makes it suitable for applications where additional compounds could interfere with reactions.
