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Octanoic acid Structure

Octanoic acid

Chemical Properties

Melting point 16 °C
Boiling point 237 °C(lit.)
Density  0.91 g/mL at 25 °C(lit.)
vapor density  5 (vs air)
vapor pressure  1 mm Hg ( 78 °C)
refractive index  n20/D 1.428(lit.)
FEMA  2799 | OCTANOIC ACID
Flash point >230 °F
storage temp.  20-25°C
solubility  0.68g/l
form  Liquid
pka 4.89(at 25℃)
color  Clear colorless to yellow
Specific Gravity 0.910 (20/4℃)
Odor unpleasant odor
PH Range 3.5
PH 3.97(1 mM solution);3.45(10 mM solution);2.95(100 mM solution);
Odor Type fatty
Viscosity 6.6mm2/s
explosive limit 1%(V)
Water Solubility  0.68 g/L (20 ºC)
JECFA Number 99
Merck  14,1765
BRN  1747180
Dielectric constant 3.2(18℃)
Stability Stable. Incompatible with bases, reducing agents, oxidizing agents. Flammable.
LogP 3.05 at 20℃
FDA 21 CFR 184.1025
Substances Added to Food (formerly EAFUS) OCTANOIC ACID
SCOGS (Select Committee on GRAS Substances) Caprylic Acid
CAS DataBase Reference 124-07-2(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII OBL58JN025
NIST Chemistry Reference Octanoic acid(124-07-2)
EPA Substance Registry System Octanoic acid (124-07-2)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H314-H412
Precautionary statements P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
Hazard Codes  C,Xi
Risk Statements  34
Safety Statements  26-36/39-45-36/37/39-25-27
RIDADR  UN 3265 8/PG 3
WGK Germany  1
RTECS  RH0175000
Autoignition Temperature >300 °C
Hazard Note  Irritant
TSCA  Yes
HS Code  2915 90 70
HazardClass  8
PackingGroup  III
Hazardous Substances Data 124-07-2(Hazardous Substances Data)
Toxicity LD50 orally in rats: 10,080 mg/kg (Jenner)
NFPA 704:
0
3 0

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