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Hexanoic acid Structure

Hexanoic acid

Chemical Properties

Melting point -4 °C (lit.)
Boiling point 202-203 °C (lit.)
Density  0.927 g/mL at 25 °C (lit.)
vapor density  4 (vs air)
vapor pressure  0.18 mm Hg ( 20 °C)
FEMA  2559 | HEXANOIC ACID
refractive index  n20/D 1.4161(lit.)
Flash point 220 °F
storage temp.  Store below +30°C.
solubility  water: slightly soluble1.082g/100g(lit.)
form  Liquid
pka 4.85(at 25℃)
Specific Gravity 0.929 (20/4℃)
color  Clear colorless to light yellow
PH 3.95(1 mM solution);3.43(10 mM solution);2.93(100 mM solution);
Odor at 10.00 % in propylene glycol. sour fatty sweat cheese
Odor Type fatty
Odor Threshold 0.0006ppm
Water Solubility  1.1 g/100 mL (20 ºC)
Merck  14,1759
JECFA Number 93
BRN  773837
Dielectric constant 2.6(71℃)
Stability Stable. Incompatible with bases, reducing agents and oxidizing agents. Flammable.
InChIKey FUZZWVXGSFPDMH-UHFFFAOYSA-N
LogP 1.92 at 25℃
Substances Added to Food (formerly EAFUS) HEXANOIC ACID
FDA 21 CFR 172.515
CAS DataBase Reference 142-62-1(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 1F8SN134MX
NIST Chemistry Reference Hexanoic acid(142-62-1)
EPA Substance Registry System Hexanoic acid (142-62-1)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H302-H311-H314
Precautionary statements P270-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  C,Xi
Risk Statements  34-21-20/21/22
Safety Statements  26-36/37/39-45-25
RIDADR  UN 2829 8/PG 3
WGK Germany  1
RTECS  MO5250000
13
Autoignition Temperature 380 °C
Hazard Note  Irritant
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29159000
Hazardous Substances Data 142-62-1(Hazardous Substances Data)
Toxicity LD50 orally in rats: 3.0 g/kg (Smyth, Carpenter)
NFPA 704:
1
3 0

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