2-Ethylhexanoic acid CAS#149-57-5

2-Ethylhexanoic acid CAS#149-57-5

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Wide Industrial Versatility: 2-Ethylhexanoic acid is a key fine chemical raw material with broad applications in coatings, plastics, pharmaceuticals, pesticides, inks, and synthetic resins.

Superior Coating Performance: Its metal salts (cobalt, manganese, lead, and zinc) act as highly effective drying agents, reducing coating viscosity and producing colorless, transparent, and non-yellowing finishes—ideal for light-colored paints and varnishes.

Important Pharmaceutical Intermediate: Sodium 2-ethylhexanoate is an essential raw material for the synthesis of antibiotics such as ampicillin, while its aluminum salt is used as a surgical refrigerant and antibiotic processing aid.

Functional Additive Capabilities: It serves as a plasticizer in plastics and synthetic resins, a solvent and ester precursor in pesticides, and a thickening agent in the ink industry, enhancing processing and product performance.
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Product Description

Melting point-59 °C
Boiling point228 °C(lit.)
Density0.906
Vapor density4.98 (vs air)
Vapor pressure<0.01 mm Hg ( 20 °C)
Refractive indexn20/D 1.425(lit.)
Fp230 °F
Storage temp.Store below +30°C.
Solubility1.4g/l
FormLiquid
PkapK1:4.895 (25°C)
ColorClear
PH3 (1.4g/l, H2O, 20℃)
OdorMild odour
PH Range3 at 1.4 g/l at 20 °C
Explosive limit1.04%, 135°F
Water Solubility2 g/L (20 ºC)
BRN1750468
Exposure limitsACGIH: TWA 5 mg/m3
StabilityStable. Combustible. Incompatible with strong oxidizing agents, reducing agents, bases.
InChIKeyOBETXYAYXDNJHR-UHFFFAOYSA-N
LogP2.7 at 25℃
CAS DataBase Reference149-57-5(CAS DataBase Reference)
NIST Chemistry ReferenceHexanoic acid, 2-ethyl-(149-57-5)
EPA Substance Registry System2-Ethylhexanoic acid (149-57-5)

Safety Information

Hazard CodesXn
Risk Statements63-41-37/38-20/21/22
Safety Statements36/37-36/37/39-26-2
RIDADRUN 3265 8/PG 2
WGK Germany1
RTECSMO7700000
F13
Autoignition Temperature699 °F
TSCAYes
HazardClass8
PackingGroupIII
HS Code29159080
Hazardous Substances Data149-57-5(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 3640 mg/kg LD50 dermal Rabbit > 2000 mg/kg


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