熔點 16.2 °C(lit.)
沸點 117-118 °C(lit.)
密度 1.049 g/mL at 25 °C(lit.)
蒸氣密度2.07 (vs air)
蒸氣壓11.4 mm Hg ( 20 °C)
FEMA 2006 | ACETIC ACID折射率 n20/D 1.371(lit.)
閃點 104 °F
儲存條件 Store at RT.
溶解度 alcohol: miscible(lit.)
形態Solution
酸度系數(pKa)4.74(at 25℃)
顏色colorless
比重1.0492 (20℃)
氣味 (Odor)Strong, pungent, vinegar-like odor detectable at 0.2 to 1.0 ppm
PH值2.5 (50g/l, H2O, 20℃)
爆炸極限值(explosive limit)4-19.9%(V)
水溶解性 miscible
最大波長(λmax)λ: 260 nm Amax: 0.05
λ: 270 nm Amax: 0.02
λ: 300 nm Amax: 0.01
λ: 500 nm Amax: 0.01
JECFA Number81
Merck 14,55
BRN 506007
Henry's Law Constant133, 122, 6.88, and 1.27 at pH values of 2.13, 3.52, 5.68, and 7.14, respectively (25 °C, Hakuta et al., 1977)
暴露限值TLV-TWA 10 ppm ~25 mg/m
3) (ACGIH, OSHA, and MSHA); TLV-STEL 15 ppm (37.5 mg/m
3) (ACGIH).