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    SZSE:002741
    Chemical Reagents
    Pyridine COA Report
    • CAS No.:110-86-1
    • Molecular weight:79.10
    • Molecular formula:C5H5N
    • UN Code:1282
    • EC No.:203-809-9
    • HS-No:29333100
    Information
    Specification category:
    Product No. Product name specifications
    1.21102.023 Pyridine AR500mL
    1.21102.033 Pyridine AR2.5L
    Characteristic: Appearance and properties: colorless or slightly yellow liquid with odor.
    Relative density: 0.98
    Relative vapor density: 2.73
    Melting point(℃): -42
    Boiling point(℃): 115.3
    Concentration: Pure
    Saturated vapor pressure: 1.33/13.2 ℃
    Solubility: soluble in water, alcohol, ether, etc. Most organic solvents.
    Technical indicators:
    Item AR CP
    Assay (C5H4N) ≥99.5% ≥99.0%
    Solubility in water Pass Pass
    Evaporation residue ≤0.002% ≤0.004%
    Water(H2O) ≤0.1% ≤0.2%
    Chloride(Cl) ≤0.0005% ≤0.001%
    Sulfate(SO4) ≤0.001% ≤0.002%
    Ammonia(NH3) ≤0.002% ≤0.004%
    Copper(Cu) Pass Pass
    Substances reducing potassium permanganate Pass Pass
    Hazard characteristics:

    IATA-DGR UN 1282 PYRIDINE,3,II

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