2-Ethylhexanoic acid

Empirical Formula (Hill Notation): C8H16O2
CAS Number: 149-57-5
Molecular Weight: 144.21
Analysis Note:
Assay (GC, area%): ≥99.0% (a/a)
Density (d 20 °C/4 °C): 0.905–0.907
Identity (IR): Passes test
Vapor Pressure: 0.04 hPa (20 °C)
Quality Segment: 200
Assay: ≥99.0% (GC)
Form: Liquid
Autoignition Temperature: 310 °C
Potency: 3640 mg/kg LD50, oral (Rat), >2000 mg/kg LD50, skin (Rabbit)
Explosion Limits: 0.9–6.7% (v/v)
pH: 3 (20 °C, 1.4 g/L in H2O)
Boiling Point: 226–229 °C/1013 hPa
Melting Point: -59 °C
Transition Temperature: Flash point 114 °C
Solubility: 1.4 g/L
Density: 0.91 g/cm³ at 20 °C
Storage Temperature: 2–30 °C

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