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Appearance (25ºC): Light buff transparent liquid.I,II
Odor: slight chrysanthemum aroma.
Pyrethrins I 146-150(5×10-4mm Hg).
Pyrethrins II 192-193(7×10-3mm Hg).
Relative density(25ºC)(water=1): 0.85-1.00
PH:4-7
Flash point:≥63ºC
Color(G-H):D-N20 1.45-1.50
Solubility(25ºC): soluble in ethanol and other organic solvent, insoluble in water