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A1179112

Butyraldehyde , standardforGC,>99.5%(GC) , 123-72-8

Synonym(s):
Butanal;Butyraldehyde

CAS NO.:123-72-8

Empirical Formula: C4H8O

Molecular Weight: 72.11

MDL number: MFCD00007023

EINECS: 204-646-6

Update time: 2022-07-08

PRODUCT 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.)
FEMA  2219 | BUTYRALDEHYDE
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)
Odor Type chocolate
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.
Dielectric constant 13.4(26℃)
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℃
CAS DataBase Reference 123-72-8(CAS DataBase Reference)
NIST Chemistry Reference Butanal(123-72-8)
EPA Substance Registry System Butyraldehyde (123-72-8)

Description and Uses

Butyraldehyde (butanal, IUPAC) is a water-white liquid with a pungent aldehyde odor. Butyraldehyde is a dangerous fire risk, with a flammable range of 2.5%–12.5% in air. Boiling point is 168°F (75°C), flash point is 10°F (?12°C), and ignition temperature is 446°F (230°C). It is slightly soluble in water, with a specific gravity of 0.8, which is lighter than water. Vapor density is 0.804, which is lighter than air. In addition to flammability, butyraldehyde is corrosive and causes severe eye and skin burns. It may be harmful if inhaled. The four-digit UN identification number is 1129. The NFPA 704 designation is health 3, flammability 3, and reactivity 2. The primary uses of butyraldehyde are in plastics and rubber and as a solvent.

n-Butyraldehyde is used to make rubberaccelerators, synthetic resins, and plasticizers;and as a solvent.

Safety

Symbol(GHS) 
GHS02,GHS07
Signal word  Danger
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
13-23
Autoignition Temperature 390 °F
TSCA  Yes
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)

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