Dimethylacetamide, the full name is N,N-dimethylacetamide (chemical formula: CH3C(O)N(CH3)2 abbreviated as DMAC or DMA. A commonly used aprotic polar solvent. Colorless Transparent liquid, flammable. Can be freely mixed with organic solvents such as water, alcohol, ether, ester, benzene, and aromatic compounds. Used in the preparation of drugs, synthetic resins, and also used as a solvent for polyacrylonitrile spinning and carbon Extractive distillation solvent for the separation of styrene in eight fractions, etc.
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Specifications of dimethylacetamide
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Chemical fiber grade
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usp grade
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Industrial grade
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||
Chromatographic content
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(%)≥
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99.90
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99.85
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99.60
|
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Water content
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PPm ≤
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100
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300
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300
|
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Acid content
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(as HAC)
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PPm ≤
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80
|
|
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Alkali content
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(as DMA)
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PPm ≤
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5
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10
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10
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Iron content
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PPm ≤
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0.05
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/
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/
|
|
Conductivity
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(20ºC)
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μs/cm≤
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0.5
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/
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/
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PH value (200g / L, 25 ºC)
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5.5-7.0
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4.5-7.0
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5.5-7.0
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||
Color and lustre
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Pt-Co≤
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5
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10
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10
|
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Water %
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≤0.2
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GB/T 6283-2008
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0.063
|
|
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Acid Assay, ml
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≤1.67
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GB 29216-2012
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1.04
|
|
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Burning residue %
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≤0.007
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GB/T 7531-2008
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0.006
|
|
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Pb mg/kg
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≤1
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GB/T 5009.75-2003
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0.000
|
|
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