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Butyraldehyde Structure


Chemical Properties

Melting point -96 °C
Boiling point 75 °C(lit.)
Density  0.817
vapor density  2.5 (vs air)
vapor pressure  90 mm Hg ( 20 °C)
refractive index  n20/D 1.380(lit.)
Flash point 12 °F
storage temp.  2-8°C
solubility  water: soluble50g/L at 20°C
form  Liquid
color  Clear colorless
PH 6-7 (71g/l, H2O, 20℃)
Odor Pungent aldehyde; pungent and intense.
PH Range 6-7
Odor Threshold 0.00067ppm
explosive limit 1.7-11.1%(V)
Water Solubility  7.1 g/100 mL (25 ºC)
Sensitive  Air Sensitive
JECFA Number 86
Merck  14,1591
BRN  506061
Exposure limits No exposure limit is set for n-butyraldehyde.
Stability Stable. Incompatible with oxidizing agents, strong bases, strong reducing agents, strong acids. Highly flammable.
LogP 1.3 at 20℃ and pH4.4-4.7
Surface tension 70mN/m at 1g/L and 20℃
Substances Added to Food (formerly EAFUS) BUTYRALDEHYDE
FDA 21 CFR 172.515; 175.105; 176.170
CAS DataBase Reference 123-72-8(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII H21352682A
NIST Chemistry Reference Butanal(123-72-8)
EPA Substance Registry System Butyraldehyde (123-72-8)


Signal wordDanger
Hazard statements H225-H319
Precautionary statements P210-P233-P280-P303+P361+P353-P337+P313-P370+P378
Hazard Codes  F
Risk Statements  11-R11
Safety Statements  9-29-33-S9-S33-S29-16
RIDADR  UN 1129 3/PG 2
WGK Germany  1
RTECS  ES2275000
Autoignition Temperature 390 °F
HS Code  2912 19 00
HazardClass  3
PackingGroup  II
Hazardous Substances Data 123-72-8(Hazardous Substances Data)
Toxicity Single-dose LD50 orally in rats: 5.89 g/kg (Smyth)
NFPA 704:
3 0

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