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Pentanoic Acid Structure

Pentanoic Acid

Chemical Properties

Melting point −20-−18 °C(lit.)
Boiling point 110-111 °C10 mm Hg(lit.)
Density  0.939 g/mL at 25 °C(lit.)
vapor density  3.5 (vs air)
vapor pressure  0.15 mm Hg ( 20 °C)
FEMA  3101 | VALERIC ACID
refractive index  n20/D 1.408(lit.)
Flash point 192 °F
storage temp.  Store below +30°C.
solubility  40g/l
pka 4.84(at 25℃)
form  Liquid
color  Clear colorless to pale yellow
PH 3.95(1 mM solution);3.43(10 mM solution);2.92(100 mM solution);
Odor at 1.00 % in propylene glycol. sickening putrid acidic sweaty rancid
Odor Type cheesy
Odor Threshold 0.000037ppm
explosive limit 1.8-7.3%(V)
Water Solubility  40 g/L (20 ºC)
Merck  14,9904
JECFA Number 90
BRN  969454
Dielectric constant 2.7(20℃)
LogP 1.8 at 25℃
CAS DataBase Reference 109-52-4(CAS DataBase Reference)
NIST Chemistry Reference Pentanoic acid(109-52-4)
EPA Substance Registry System Valeric acid (109-52-4)

Safety Information

Hazard Codes  C
Risk Statements  34-52/53
Safety Statements  26-36-45-61
RIDADR  UN 3265 8/PG 3
WGK Germany  1
RTECS  YV6100000
13
Autoignition Temperature 707 °F
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29156090
Hazardous Substances Data 109-52-4(Hazardous Substances Data)
Toxicity LD50 i.v. in mice: 1290 ±53 mg/kg (Or, Wretlind)

MSDS

Usage And Synthesis

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