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N,N-Dimethylacetamide Structure


Chemical Properties

Melting point -20 °C (lit.)
Boiling point 164.5-166 °C (lit.)
Density  0.937 g/mL at 25 °C (lit.)
vapor density  3.89 (vs air)
vapor pressure  40 mm Hg ( 19.4 °C)
refractive index  n20/D 1.439(lit.)
Flash point 158 °F
storage temp.  Store below +30°C.
solubility  >1000g/l soluble
form  Liquid
pka -0.41±0.70(Predicted)
color  Colorless to yellowish
Relative polarity 6.3
PH 4 (200g/l, H2O, 20℃)
Odor Faint ammonia odor
PH Range 4 at 200 g/l at 20 °C
explosive limit 1.7-11.5%(V)
Odor Threshold 0.76ppm
Water Solubility  miscible
λmax λ: 270 nm Amax: 1.00
λ: 280 nm Amax: 0.30
λ: 290 nm Amax: 0.15
λ: 310 nm Amax: 0.05
λ: 320 nm Amax: 0.03
λ: 360-400 nm Amax: 0.01
Merck  14,3227
BRN  1737614
Exposure limits NIOSH REL: TWA 10 ppm (35 mg/m3), IDLH 300 ppm; OSHA PEL: TWA 10 ppm; ACGIH TLV: TWA 10 ppm (adopted).
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
LogP -0.77 at 25℃
CAS DataBase Reference 127-19-5(CAS DataBase Reference)
IARC 2B (Vol. 123) 2020
NIST Chemistry Reference Acetamide, N,N-dimethyl-(127-19-5)
EPA Substance Registry System Dimethylacetamide (127-19-5)

Safety Information

Hazard Codes  T
Risk Statements  11-20/22-61-20/21-36
Safety Statements  16-24-53-45-36-28-26
RTECS  AB7700000
Autoignition Temperature 914 °F
HS Code  29241900
Hazardous Substances Data 127-19-5(Hazardous Substances Data)
Toxicity LD50 orally in rats: 5.4 ml/kg (Bartsch)
IDLA 300 ppm


Usage And Synthesis

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