Dimethylacetamide DMAC CAS 127-19-5 is a high-performance dipolar aprotic solvent, widely used in the production of fibers and polymers due to its excellent solubility, high boiling point, and superior chemical/thermal stability.
What Is Dimethylacetamide (CAS 127-19-5)?
N,N-Dimethylacetamide (DMAC) is a transparent, colorless liquid with excellent solubility. It is compatible with water, alcohols, ethers, esters, benzene, and many organic solvents. This product has a high boiling point (166°C) and maintains stability at various temperatures, ensuring the continuity and reliability of the production process.
What are the properties of DMAC solvent?
| Physical and chemical properties: | |
|---|---|
| Molecular Weight | 87.12 |
| Boiling Point (°C at 760 mmHg) | 165.5 |
| Freezing Point (°C) | -20 |
| Density (at 15.6 °C) | 0.9448 |
| Heat of Vaporization | 10.36 kcal/gr.mole |
| Heat of Combustion | 608 kcal/gr.mole |
| Flash Point (°C) | 490 |
| Heat of Formation (Liquid, 0.87 °C) | 0.485 cal/gr. °C |
| Combustion Limits |
Minimum: 2% by volume Maximum: 11.5% by volume |
| Solubility | Fully miscible with water, ether, esters, ketones, and aromatic compounds |
| Hydrolysis Tendency | Tends to hydrolyze in aqueous solutions at high temperatures |
What are the uses of DMAC solvent in fiber and polymer production?
1. Applications of DMAc Solvent in Fiber Production
- Synthetic Fiber Spinning Solvent
DMAC is a commonly used solvent in both wet and dry spinning. It can dissolve PAN to create spinning solutions for acrylic fiber production. It can also dissolve polyurethane to form high-quality spandex filaments. Most fiber polymers cannot be produced without DMAC-based solvents.
- Improving Fiber Structure and Quality
Dimethylacetamide maintains the stability of the spinning solution during production. It helps produce high-quality and high-performance fibers.
- Used in Advanced Specialty Fibers
DMAC, when mixed with LiCl, can dissolve cellulose and other poorly soluble substances. It is widely used in the production of nanofibers, composite fibers, and electrospun materials.
2. Applications of DMAC in Polymer Production
- Dissolving and Processing Polymers
N,N-Dimethylacetamide (DMAc) can dissolve a variety of high-performance polymers, such as PAN, PU, polyimide, and polysulfone. It forms stable polymer liquids used in the manufacture of polymer films.
- Manufacturing Polymer Films and Coatings
DMAc is used to produce insulating films, protective coatings, and filter membranes. Due to its high boiling point, DMAc evaporates slowly and uniformly, forming a smooth, defect-free thin film.
- As a reaction medium
DMAc (CAS 127-19-5) can be used as a safe solvent in polymerization and chemical synthesis processes.
Dimethylacetamide Solvent CAS 127-19-5
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Gneebio Product Packaging
| Packaging Type | Net Weight |
|---|---|
| Steel Drum | 250 kg |
| IBC Tank | 1250 kg |
| ISO Tank | Bulk shipment |
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