pyridine

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Origin: China

Cas No: 110-86-1

Specification: 99%min

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

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

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

Synthesis Route

Ammonia+acetaldehyde→pyridine+2-methyl-4-phenylpyridine
4-methylpyridine→pyridine+4-Ethylpyridine
Acrolein→pyridine+3-Ethylpyridine

Toxicity

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