Chemical

Products

Dimethyl Acetamide

Cas Number

127-19-5

Other Names

N,N-Dimethylacetamide

The formula

CH3C(O)N(CH3)2

Introduction

Dimethylacetamide (DMAc or DMA) is the organic compound with the formula CH3C(O)N(CH3)2. This colorless, water-miscible, high boiling liquid is commonly used as a polar solvent in organic synthesis. DMA is miscible with most other solvents, although it is poorly soluble in aliphatic hydrocarbons.

Physical and Chemical Properties
Physical state and appearance colorless liquid with a faint
Odor ammonia
Flash point 70 C
Melting Point -20 C
Specific Gravity 0.937
Vapor Pressure 9 mm Hg at 60 C
Vapor Density 3
DMAC Assay, % ≥ 99.9
Water, ppm ≤ 250
Iron, ppm ≤ 0.05
Acidity, wt ppm ≤ 100
Basicity, ppm ≤ 5
Conductivity, us/cn ≤ 0.5
Applications

1. It is used as an intermediate for organic synthesis (modified polyamides, corrosion inhibitors, fuel additives, epoxy curing agents, fabric softeners and adhesion promoters) and saponification agent for acidic materials. It is used as a solvent for sulfur, acidic gas, resin and as a fuel and oil field component

2. Chelating agents to form complexes with certain metal ions to prevent the ions from interfering with processing or to promote buffering, concentration, separation, or transport

3. Corrosion inhibitors to slow corrosion in petroleum production operations