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Email:info@chinaamines.com
China Amines Co
Product Profile
Dimethylacetamide (DMAC / DMAc)
CAS No.: 127-19-5
Molecular Formula: C₄H₉NO
Molecular Weight: ~ 87.12 g/mol
Physicochemical Properties (Typical)
- Appearance: Colorless to pale yellow liquid
- Odor: Mild ammonia- or amine-like odor
- Melting / Softening Point: ~ –20 °C
- Boiling Point / Decomposition Behavior: ~164–166 °C; may decompose under extreme heat
- Density (20 °C): ~0.94 g/mL
- Refractive Index (n²⁰ᴰ): ~1.4375
- Vapor Pressure (20–25 °C): ~1.8 mmHg (≈ 240 Pa)
- Solubility: Miscible with water, alcohols, ketones, polar solvents
- pH / Behavior in Aqueous Solution: Slightly acidic in concentrated aqueous solution (due to hydrolysis)
Purity & Quality Standards
- Purity: ≥ 99.0% (typical high-grade)
- Water / Moisture Content: ≤ 0.1 – 0.5% (depending on grade)
- Color (APHA): ≤ 20 (or per customer spec)
- Impurity Limits: Low levels of residual amines, non-volatile impurities, trace acids
- Analytical Methods: GC, Karl Fischer titration, spectrometric methods
- Documentation: Certificate of Analysis (COA) and Safety Data Sheet (SDS) provided per batch
Safety & Handling
- Causes skin and eye irritation; vapors may irritate respiratory system
- Combustible liquid; vapor can form explosive mixtures with air
- Handle in well-ventilated areas; avoid inhalation of vapors or skin contact
- Wear appropriate protective gloves, goggles / face shield, protective clothing
- Avoid strong oxidizers, halogenated compounds, acids, reactive metals
- In case of fire: containers may rupture; fire may produce toxic fumes (nitrogen oxides, carbon oxides, dimethylamine)
Packaging & Storage
- Packaging: Sealed drums, HDPE or compatible containers, bulk containers
- Storage Conditions: Cool (< ~35 °C), dry, ventilated area; protect from moisture and direct sunlight
- Container Closure: Keep tightly sealed to prevent contamination or moisture ingress
- Shelf Life: 12–24 months under recommended storage conditions
Contact Information
Company: China Amines
Email: info@chinaamines.com
COA, SDS and technical support available on request.