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)
refractive index :n20/D 1.408(lit.)
FEMA :3101 | VALERIC ACID
Flash point :192 °F
storage temp. :Store below +30°C.
solubility :40g/l
form :Liquid
pka :4.84(at 25℃)
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)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:	P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.