N,N-Dimethylacetamide (DMAc)

1. Product Overview

N,N-Dimethylacetamide (DMAc) is a high-purity, aprotic polar solvent engineered for demanding industrial synthesis and material processing. Its primary industrial use lies in the production of high-performance polymers such as polyacrylonitrile fibers, polyimide films, and engineering resins, as well as in pharmaceutical and agrochemical synthesis. The key value proposition is exceptional thermal stability, complete miscibility with water and most organic solvents, and superior solvating power for both polar and nonpolar compounds. Strategically, DMAc is indispensable for manufacturers transitioning to lightweight, heat-resistant materials in electronics, aerospace, and filtration, where solvent performance directly dictates final product integrity.

2. Key Specifications & Technical Characteristics

• Chemical composition: N,N-Dimethylacetamide (CAS 127-19-5), C₄H₉NO

• Purity grade: ≥99.9% (anhydrous grade) / 99.5% (industrial grade) available

• Physical form: Transparent, colorless liquid

• Key physical properties:

  • Boiling point: 165–166°C

  • Flash point: 70°C (closed cup)

  • Density: 0.937 g/cm³ at 25°C

  • Water content: ≤0.05% (anhydrous spec)

• Packaging options: 190 kg HDPE drums, 1,000 kg IBC totes, isotanks, and bulk tank trucks

• Shelf life: 24 months in original sealed container under dry, ambient conditions

3. Core Industrial Applications

• Electronics & advanced materials: Production of polyimide films (Kapton-type) for flexible circuit boards, tape-automated bonding, and 5G antenna substrates – DMAc enables higher molecular weight polymers with fewer defects than DMF or NMP.

• Synthetic fibers: Dry-spinning of polyacrylonitrile (PAN) precursors for carbon fiber manufacturing – delivers faster dissolution kinetics and lower residual solvent in green fibers, improving carbon yield.

• Pharmaceutical & agrochemical synthesis: Reaction medium for nucleophilic substitutions and peptide couplings – superior thermal stability allows higher reaction temperatures without decomposition compared to DMA or DMSO.

• Surface coating removal: High-performance paint and resin stripper for aerospace tooling – non-corrosive to aluminum and titanium alloys, reducing downtime versus methylene chloride-based systems.

4. Competitive Advantages

• Quality consistency: Lot-to-lot variance controlled to <0.1% via ISO 9001:2025 certified QC, including GC-FID and Karl Fischer testing. Certificate of Analysis provided with every shipment.

• Supply reliability: Dedicated manufacturing lines with 50,000 MT annual capacity; safety stock held in three regional hubs (Americas, Europe, Asia) to buffer supply chain disruptions.

• Logistics capability: Hazmat-certified (Class 3, PG III) with pre-cleaned isotanks and dedicated fleet for just-in-time delivery to 48-hour windows.

• Price competitiveness: Direct-from-plant pricing eliminates broker markups; long-term contracts (12–36 months) with fixed escalation caps.

• Sustainability: Recovery and recycling program for spent DMAc (up to 95% solvent recovery rate); REACH and TSCA compliant; no chlorine or ozone-depleting compounds.

• Technical support: In-house applications lab for dissolution testing, impurity profiling, and process optimization. SDS, technical data sheets, and regulatory support for global import available on demand.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): 1 IBC (1,000 kg) for spot purchases; 10 MT for contract pricing

• BULK 20MT loading capacity: 20 metric tons per standard 20-ft isotank container (ISO tank container, approximate net weight; actual capacity varies with tank certification up to 24 MT)

• Incoterms supported: EXW (plant), FOB (loading port), CIF (major global ports)

• Lead time: 10–14 working days for drum/IBC orders; 21 days for isotank (ex-works)