pyridine
CAS No.: 110-86-1 Formula: C5H5N Molecular Weight: 79.09990
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pyridine

CAS No.: 110-86-1 Formula: C5H5N Molecular Weight: 79.09990
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Basic Info

Chemical Name pyridine
Synonyms

Pyridine; Pyridine,nonaqueous titration grade; Pyridine,AcroSeal,Extra Dry;

CAS No. 110-86-1
Molecular Formula C5H5N
Molecular Weight 79.09990
PSA 12.89000
LogP 1.08160

Numbering system

BRN number 103233
MDL number MFCD00011732
EINECS number 203-809-9
PubChem number 24856420
RTECS number UR8400000

Properties

Appearance & Physical State Clear clean liquid with characteristic odour
Density 0.978
Boiling Point 115-116ºC
Melting Point -42ºC
Freezing Point -42℃
Flash Point 17ºC
Refractive Index 1.5085-1.5105
Water Solubility Miscible
Stability Stable. Flammable. Incompatible with strong oxidizing agents, strong acids.
Storage Condition Store at RT.
Vapor Density 2.72 (vs air)
Vapor Pressure 23.8 mm Hg ( 25 °C)

Safety Info

RTECS UR8400000
Hazard Class 3
Safety Statements S26-S28
HS Code 2933990090
Packing Group II
WGK Germany 2
RIDADR UN 1282
Risk Statements R11; R20/21/22
Hazard Codes F; Xn
Symbol GHS02, GHS07
Caution Statement P210; P261; P280; P305 + P351 + P338; P370 + P378; P403 + P235
Signal Word Danger
Hazard Declaration H225; H302 + H312 + H332; H315; H319
1H NMR : 90 MHz in CDCl3Expand

NMR Spectrum 1H NMR : 90 MHz in CDCl3

Collapse

C5 H5 N 4.0 mol% in CDCl3
pyridine

Assign. Shift(ppm)
A 7.277
B 7.655
C 8.613

IR : liquid filmExpand
Mass spectrum (electron ionization)Expand
Raman : 4880 A,100M,liquidExpand
ESR : MN(II) COMPLEX IN TOLUENEExpand
UV/Visible spectrumExpand
Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
Administration onto the skin Standard Draize test Rodent - rabbit 500 mg/24H -
Oral LD50 - Lethal dose, 50 percent kill Rodent - rat 891 mg/kg 1.Sense Organs and Special Senses (Eye)-ptosis
2.Behavioral-somnolence (general depressed activity)
3.Behavioral-coma
Inhalation LC50 - Lethal concentration, 50 percent kill Rodent - rat 28500 mg/m3/1H 1.Sense Organs and Special Senses (Eye)-lacrimation
2.Behavioral-somnolence (general depressed activity)
3.Lungs, Thorax, or Respiration-dyspnea
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