CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Butyric acid appears as a colorless liquid with a penetrating and unpleasant odor. Flash point 170 °F. Corrosive to metals and tissue. Density 8.0 lb /gal. |
|---|---|
| Color/Form | Oily liquid |
| Odor | Unpleasant, rancid odor |
| Taste | Butter-fat taste |
| Boiling Point | 326.3 °F at 760 mmHg (NTP, 1992) |
| Melting Point | 17.8 °F (NTP, 1992) |
| Flash Point | 170 °F (NTP, 1992) |
| Solubility | greater than or equal to 100 mg/mL at 66 °F (NTP, 1992) |
| Density | 0.958 at 68 °F (USCG, 1999) - Less dense than water; will float |
| Vapor Density | 3.04 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 0.43 mmHg at 68 °F ; 1.4 mmHg at 86 °F (NTP, 1992) |
| LogP | 0.79 |
| LogS | -0.19 |
| Stability/Shelf Life | It has good stability |
| Autoignition Temperature | 842 °F (USCG, 1999) |
| Viscosity | 1.426 mPa-s at 25 °C |
| Corrosivity | Corrosive material |
| Heat of Combustion | 521.87 kg cal/gm at 25 °C |
| Heat of Vaporization | 40.45 kJ/mol at 25 °C |
| Surface Tension | 26.05 mN/m at 25 °C |
| Odor Threshold | 0.001 mg/cu m (Odor low) 9 mg/cu m (Odor high) |
| Refractive Index | Index of refraction: 1.3991 at 20 °C/D |
| Dissociation Constants | 4.82 (at 25 °C) |
| Kovats Retention Index | 780 856 826 830 814 778 823 823 828 834 804 824 823 800 786 775.6 802 809 803 820 780 797 797 795 |
| Other Experimental Properties | Heat capacity = 178.6 J/mol-K at 25 °C. Heat capacity = 178.6 J/mol-K at 25 °C |
| Chemical Classes | Other Classes -> Organic Acids |
COMPUTED DESCRIPTORS
| Molecular Weight | 88.11 g/mol |
|---|---|
| XLogP3 | 0.8 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 2 |
| Exact Mass | 88.052429494 g/mol |
| Monoisotopic Mass | 88.052429494 g/mol |
| Topological Polar Surface Area | 37.3 Ų |
| Heavy Atom Count | 6 |
| Formal Charge | 0 |
| Complexity | 49.5 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Butyric acid appears as a colorless liquid with a penetrating and unpleasant odor. Flash point 170 °F. Corrosive to metals and tissue. Density 8.0 lb /gal.