Melting point :?6-?3 °C (lit.)
Boiling point :162 °C (lit.)
Density :0.964 g/mL at 25 °C (lit.)
vapor density :3.04 (vs air)
vapor pressure :0.43 mm Hg ( 20 °C)
refractive index :n20/D 1.398(lit.)
FEMA :2221 | BUTYRIC ACID
Flash point :170 °F
storage temp. :Store below +30°C.
solubility :Chloroform (Soluble), Isopropanol (Sparingly), Methanol (Slightly);Miscible with water, Propylene glycol, Glycerin, alcohol and oils.
pka :4.83(at 25℃)
form :Liquid
color :Clear colorless
Specific Gravity :0.960 (20/4℃)
PH :3.94(1 mM solution);3.42(10 mM solution);2.92(100 mM solution);
Odor :at 1.00 % in dipropylene glycol. sharp acetic cheese butter fruit
Odor Type :cheesy
Odor Threshold :0.00019ppm
explosive limit :2-12.3%(V)
Water Solubility :MISCIBLE
Merck :14,1593
JECFA Number :87
BRN :906770
Dielectric constant :3.0（Ambient）
Stability :Flammable. Incompatible with strong oxidizing agents, aluminium and most other common metals, alkalies, reducing agents.
InChIKey :FERIUCNNQQJTOY-UHFFFAOYSA-N
LogP :1.1 at 25℃
CAS DataBase Reference :107-92-6(CAS DataBase Reference)
NIST Chemistry Reference :Butanoic acid(107-92-6)
EPA Substance Registry System :Butyric acid (107-92-6)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 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
Precautionary statements:	P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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.