毛片基地网站,好看的国产精品视频,国产女无套免费网站,久久久精品一区二区三区四季av,激情视频一二三区,国产自产区,久久国产乱子伦精品免费午夜 浪货好紧

Products

Fenpropathrin

Product name: Fenpropathrin. Danitol. Fenpropanate. Herald. Meothrin.
Physical and chemical properties:
Molecular formula:
C22H23NO3
Molecular weight: 349.43
Appearance: Pure product is white crystalline solid, technical is brown liquid.
Melting point: 49-50°C  (pure)45-50°C  (TC)
Relative density: d251.153 (pure), d251.15 (TC)
Vapour pressure: pure7.33×10-4PaTC, 1.29×10-3Pa (another literature 1.33×10-3Pa /20°C )
Volatility: Stable with light, heat and moisture. Unstable in alkali solution. In room temperature can be stable for 2 years.
Solubility: Hardly soluble in water, soluble in acetone, cyclohexane, methyl isobutyl ketone, acetonitrile, xylene, chloroform and other organic solvents.
Flashing point: 250°C
Hazard: Poisoning, damage nervous system. Flammable with fire and high temperature.