Eggyolk lecithin isyewllowwax-like solid and the PC contents is more than 98%, which can be used as liposome/emulsifier and the raw material or excipient of lipid emulsion for injection. Character Appearanceyellow waxy solidIndentificationConformWater0.8%Acid Value2.1mgKOH/gIodineValue102gI/100gColour≤0.8 (350nm)Emulsifying Stabilityno delamination Inspection Nitrogen1.8 %Toluene Insoluble0.1%Acetone Insoluble99.6%Proxide Value3.4mEq/kgEthanol admittance99.8%Heavy Metal≤10PPmPesticide Residues≤2PPmPhosphorus Content(P)5.2%Phosphatidylcholine(PC)≥98%