Cas No. 50-32-8 Molecular formula C20H12 Molecular weight 252.31 Alias ​​Benzo (a) pyrene standard solution Benzo (a) pyrene in methanol Colorless to pale yellow needle crystal, insoluble in water, slightly soluble in ethanol, methanol, soluble in benzene , Toluene, xylene, chloroform, ether, acetone, etc. Boiling point: 495 ℃ Melting point: 177-180 ℃ Density: 1.35 Precautions for use: Balance before use to 20 ± 5 ℃, shake the ampoule to ensure uniformity. When diluting, please accurately calculate the dilution factor. The validity period is 12 months. Store at room temperature (<10 ℃) and protected from light. Product use This product has no production and use value in industry, and is generally only used as a by-product formed during the production process and is discharged with exhaust gas. Calibration instruments and devices; evaluation methods; working standards; quality assurance / quality control; others.
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