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Ethanol Structure


Chemical Properties

Melting point -114°C
Boiling point 78°C
Density  0.789 g/mL at 20 °C
vapor density  1.59 (vs air)
vapor pressure  43 mmHg at 20 °C
refractive index  1.3614
Flash point 12°C
storage temp.  room temp
solubility  water: soluble (completely)
pka 16(at 25℃)
form  Liquid. Colorless liquid / invisible vapor.
color  APHA: ≤10
Specific Gravity 0.80872~0.81601
Relative polarity 0.654
PH 7.0 (10g/l, H2O, 20℃)
Odor Pleasant alcoholic odor detectable at 49 to 716 ppm (mean = 180 ppm)
explosive limit 3.1-27.7%(V)(ethanol)
Odor Threshold 0.52ppm
Odor Type alcoholic
Water Solubility  miscible
Sensitive  Hygroscopic
λmax λ: 240 nm Amax: 0.40
λ: 250 nm Amax: 0.30
λ: 260 nm Amax: 0.30
λ: 270 nm Amax: 0.10
λ: 340 nm Amax: 0.10
Merck  14,3760
JECFA Number 41
BRN  1718733
Exposure limits TLV-TWA 1900 mg/m3 (1000 ppm) (ACGIH).
Dielectric constant 24.3(25℃)
Stability Stable. Substances to be avoided include strong oxidizing agents, peroxides, acids, acid chlorides, acid anhydrides, alkali metals, ammonia, moisture. Forms explosive mixtures with air. Hygroscopic.
LogP -0.19
CAS DataBase Reference 64-17-5(CAS DataBase Reference)
IARC 1 (Vol. 96, 100E) 2012
NIST Chemistry Reference Ethanol(64-17-5)
EPA Substance Registry System Ethanol (64-17-5)

Safety Information

Hazard Codes  F,T,Xn,N
Risk Statements  11-10-36/37/38-39/23/24/25-23/24/25-68/20/21/22-20/21/22-52/53-51/53
Safety Statements  16-7-36-26-45-36/37-61-24/25-2017/7/16
RIDADR  1170
OEL TWA: 1000 ppm (1900 mg/m3)
WGK Germany  nwg
RTECS  KQ6300000
Autoignition Temperature 363 °C
HazardClass  3
PackingGroup  II
HS Code  22071000
Hazardous Substances Data 64-17-5(Hazardous Substances Data)
Toxicity LD50 in young, old rats (g/kg): 10.6, 7.06 orally (Wiberg)
IDLA 3,300 ppm [10% LEL]

Usage And Synthesis

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