Pyridine Property

Melting point:

-42 °C

Boiling point:

115 °C

Density 

0.978

vapor density 

2.73 (vs air)

vapor pressure 

18 mm Hg @ at 20°C

refractive index 

1.509-1.510

Flash point:

17 °C

form 

Liquid

pka

5.23±0.10(Predicted)

color 

colorless to light yellow

Odor

Fishy Stench odour

PH Range

8.5 at 15.82 g/l at 25 °C

explosive limit

1.80-12.40%

Water Solubility 

Soluble in water

Safety

Autoignition Temperature

482 °C

PackingGroup 

II

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Pyridine Chemical Properties,Usage,Production

Definition

ChEBI: Pyridine is an azaarene comprising a benzene core in which one -CH group is replaced by a nitrogen atom. It is the parent compound of the class pyridines. It has a role as an environmental contaminant. It is a mancude organic heteromonocyclic parent, a monocyclic heteroarene, an azaarene and a member of pyridines.