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Pyridine 99.5% AR
Suitable for Karl Fischer reagent. Azabenzene; Azine.

Product Code.
02223
Grade
AR
Purity
99.5%
CAS No.
110-86-1
Molecular Formula
C5H5N
Molecular Weight
79.10
H.S.Code
2933.31000
Shelf Life
60 Months

Physical Properties

Physical state at 20 °C
Liquid
Colour
colorless to light yellow
Odour
Fishy Stench odour
pH value
8.5 at 15.82 g/l at 25 °C
Melting point/ Freezing point [°C]
-42 °C
Auto-ignition temperature [°C]
482 °C
Flammability (solid, gas)
Flammable
Flash point [°C]
17 °C
Boiling point [°C]
115 °C
Vapour pressure [20°C]
18 mm Hg @ at 20°C
Vapour pressure mm/Hg
18 mm Hg @ at 20°C
Vapour density
2.73
Density [g/cm3]
0.978
Solubility in water [% weight]
Soluble in water
Partition coefficient Log Pow octanol / water at 20°C
0.65
Viscosity at 40°C [mm2/s]
0.95 mPas at 20°C
Explosion limits - upper [%]
12.40%
Explosion limits -lower [%]
1.80%

Packaging

Specification

Appearance
A clear colorless liquid with characteristic odor
Assay
Min 99.5%
Weight/ mL at 20°C
0.982 - 0.983 g/ml
Refractive index (20°C; 589 nm)
1.509 - 1.510
Insoluble matter in water
Passes test
Water (H2O)
Max 0.1%
Non volatile matter
Max 0.002%
Chloride (Cl)
Max 0.0005%
Ammonia (NH3)
Max 0.002%
Copper (Cu)
Max 0.0002%
Iron (Fe)
Max 0.0002%
Lead (Pb)
Max 0.0001%
Substance reducing KMnO4 (as O)
Max 0.0008%

Safety Information and Hazard Symbols

Symbol: GHS02, GHS07
Signal Word: Danger
UN No.: 1282
IMCO Class No.: 3
Packing Group: II
Hazardous Statement: H225-H302-H312-H332
Precaution Statement: P210-P280