108-89-4
Product Name:
4-Methylpyridine
Formula:
C6H7N
Synonyms:
4-Methylpyridine;4-Picoline
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 4-methyl pyridine is a colorless moderately volatile liquid. (NTP, 1992) |
|---|---|
| Color/Form | Colorless liquid |
| Odor | Obnoxious, sweetish odor |
| Boiling Point | 292.8 °F at 760 mmHg (NTP, 1992) |
| Melting Point | 38.5 °F (NTP, 1992) |
| Flash Point | 134 °F (NTP, 1992) |
| Solubility | Miscible with water at 20 °C |
| Density | 0.9548 at 68 °F (NTP, 1992) - Less dense than water; will float |
| Vapor Density | 3.2 (Air = 1) |
| Vapor Pressure | 5.77 [mmHg] |
| LogP | log Kow = 1.22 |
| Henry's Law Constant | Henry's Law constant = 6.00X10-6 atm-cu m/mol @ 25 °C |
| Stability/Shelf Life | Moderately volatile liquid. |
| Decomposition | When heated to decomposition it emits toxic fumes of /nitrogen oxides/. |
| Heat of Vaporization | 37.51 kJ/mol at 145.36 °C; 44.56 kJ/mol at 25 °C |
| Refractive Index | Index of refraction: 1.5037at 20 °C/D |
| Dissociation Constants | Kb at 25 °C = 1.1X10-8 |
| Kovats Retention Index | 832.7 850 850 852 864 852 877 845 852 863 843 843 844 846 846 860 850 852 853 876 838.5 848 848 841 832 |
| Other Experimental Properties | Turns brown if not very pure |
| Chemical Classes | Nitrogen Compounds -> Pyridines |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H226:Flammable liquids H311:Acute toxicity,dermal H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 93.13 g/mol |
|---|---|
| XLogP3 | 1.2 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 93.057849228 g/mol |
| Monoisotopic Mass | 93.057849228 g/mol |
| Topological Polar Surface Area | 12.9 Ų |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Complexity | 46.1 |
| 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
4-methyl pyridine is a colorless moderately volatile liquid. (NTP, 1992)