CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Tributylamine appears as a pale yellow liquid with an ammonia-like odor. Less dense than water. Very irritating to skin, mucous membranes, and eyes. May be toxic by skin absorption. Low toxicity. Used as an inhibitor in hydraulic fluids. |
|---|---|
| Color/Form | Pale yellow liquid |
| Odor | Odor of ammonia |
| Boiling Point | 415 °F at 760 mmHg (NTP, 1992) |
| Melting Point | -94 °F (NTP, 1992) |
| Flash Point | 185 °F (NTP, 1992) |
| Solubility | Slightly soluble (NTP, 1992) |
| Density | 0.7771 at 68 °F (NTP, 1992) - Less dense than water; will float |
| Vapor Density | 6.38 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 20 mmHg at 212 °F (NTP, 1992) |
| LogP | log Kow = 4.46 |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Autoignition Temperature | 210 °C |
| Decomposition | When heated to decomp, emits toxic fumes of /nitrogen oxides/. |
| Viscosity | 1.35 cP at 25 °C; 0.73 cP at 60 °C |
| Heat of Vaporization | 12,390.6 gcal/gmole |
| Surface Tension | 24.9 dynes/cm at 20 °C |
| Ionization Efficiency | Positive |
| Odor Threshold | 8 female and 8 male volunteers were exposed to the test substance (> 99.5% pure) in varying concentrations. An odor threshold of 0.07 +/- 0.03 ppm (approx. 0.54 mg/cu m) was identified in this study (lowest value: 0.01 ppm) |
| Refractive Index | Index of refraction: 1.4299 at 20 °C/D |
| Dissociation Constants | pKa = 10.89 |
| Kovats Retention Index | 1192 1226 1228 1228 1189 |
| Other Experimental Properties | Conversion factors: 1 mg/L is equiv to 132 ppm; 1 ppm is equiv to 7.58 mg/cu m |
| Chemical Classes | Nitrogen Compounds -> Amines, Aliphatic |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H372:Specific target organ toxicity, repeated exposure |
| Precautionary Statement Codes |
P262:Do not get in eyes, on skin, or on clothing. P280:Wear protective gloves/protective clothing/eye protection/face protection. P314:Get medical advice/attention if you feel unwell. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
COMPUTED DESCRIPTORS
| Molecular Weight | 185.35 g/mol |
|---|---|
| XLogP3 | 4 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 9 |
| Exact Mass | 185.214349865 g/mol |
| Monoisotopic Mass | 185.214349865 g/mol |
| Topological Polar Surface Area | 3.2 Ų |
| Heavy Atom Count | 13 |
| Formal Charge | 0 |
| Complexity | 72.1 |
| 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
Tributylamine appears as a pale yellow liquid with an ammonia-like odor. Less dense than water. Very irritating to skin, mucous membranes, and eyes. May be toxic by skin absorption. Low toxicity. Used as an inhibitor in hydraulic fluids.