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.
Re na le lifeme tse ngata tsa boleng bo holimo tse nang le tšebelisano e tebileng, tse ka u fang lihlahisoa tsa boleng bo holimo le litheko tsa tlholisano. Hape re ka fana ka litheolelo bakeng sa ho reka ka bongata.'Me re sebelisana le lik'hamphani tse ngata tsa litsebi tse tsamaisang thepa, li ka isa lihlahisoa ka mokhoa o sireletsehileng le ka thelelo matsohong a hau. Nako ea ho fana e ka ba matsatsi a 3-20 ka mor'a hore ho netefatsoe tefo.
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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|
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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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/
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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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|
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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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|
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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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|
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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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