Acetaldehyde

Melting point :-125 °C (lit.)
Boiling point :21 °C (lit.)
Density :0.785 g/mL at 25 °C (lit.)
vapor density :1.03 (vs air)
vapor pressure :52 mm Hg ( 37 °C)
refractive index :n20/D 1.377
FEMA :2003 | ACETALDEHYDE
Flash point :133 °F
storage temp. :2-8°C
solubility :alcohols: soluble
pka :13.57(at 25℃)
form :solution
color :White to off-white
Specific Gravity :0.823 (20/4℃) (90% Soln.)
PH :5 (10g/l, H2O, 20℃)
Odor :Pungent, fruity odor detectable at 0.0068 to 1000 ppm (mean = 0.067 ppm)
Odor Threshold :0.0015ppm
Odor Type :ethereal
biological source :synthetic
explosive limit :4-57%(V)
Water Solubility :> 500 g/L (20 ºC)
Sensitive :Air Sensitive
Merck :14,39
JECFA Number :80
BRN :505984
Henry's Law Constant :7.69 at 25 °C (Snider and Dawson, 1985:Benkelberg et al., 1995)
Exposure limits :TLV-TWA 180 mg/m³ (100 ppm) (ACGIH), 360 mg/m³ (200 ppm) (NIOSH); STEL 270 mg/m³ (150 ppm); IDLH 10,000 ppm.
Dielectric constant :21.8（5℃）
Stability :Stable, but air sensitive. Substances to be avoided include strong oxidizing agents, strong acids, reducing agents, alkalies, halogens, halogen oxides. Highly flammable. Vapour/air mixtures explosive over a very wide concentration range. May form peroxides in storage.
Cosmetics Ingredients Functions :FRAGRANCE
InChI :1S/C2H4O/c1-2-3/h2H,1H3
InChIKey :IKHGUXGNUITLKF-UHFFFAOYSA-N
SMILES :CC=O
LogP :-0.16
CAS DataBase Reference :75-07-0(CAS DataBase Reference)
IARC :2B (Vol. 36, Sup 7, 71) 1999, 1 (Vol. 100E) 2012
NIST Chemistry Reference :Acetaldehyde(75-07-0)
EPA Substance Registry System :Acetaldehyde (75-07-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H313 May be harmful in contact with skin Acute toxicity,dermal Category 5 P312 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501 H341 Suspected of causing genetic defects Germ cell mutagenicity Category 2 Warning P201,P202, P281, P308+P313, P405,P501 H350 May cause cancer Carcinogenicity Category 1A, 1B Danger H360 May damage fertility or the unborn child Reproductive toxicity Category 1A, 1B Danger H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501 H371 May cause damage to organs Specific target organ toxicity, single exposure Category 2 Warning P260, P264, P270, P309+P311, P405,P501 H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, P314, P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
Precautionary statements:	P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting/…/equipment. P242 Use only non-sparking tools. P243 Take precautionary measures against static discharge. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P333+P313 IF SKIN irritation or rash occurs: Get medical advice/attention. P370+P378 In case of fire: Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P403+P235 Store in a well-ventilated place. Keep cool. P405 Store locked up. P501 Dispose of contents/container to..…