Vitamin D3 Powder Food Grade 1.Technical Process Vitamin D3 Oil Food Grade is obtained from the downstream processing of Vitamin D3 Crystal. Active ingredient:Vitamin D3(Cholecalciferol). Enwrapped with Beta-Cyclodextrin. 2.Main specifications Items Specifications Description White Powder without odor Identification （1） The chromatogram of the sample shows the same color of fluorescence spot at corresponding position,compared to the reference sample. （2） Under chromatographic analysis of the assay,the holding time of the sample should confirm to that of the reference sample sieve Size 95.0% min through #3 Loss on Drying 13.0% max As 0.0001% max Heavy Metal 0.002% max Assay(C28H44O) 90.0%-110.0% Microbiological Bacteria number 1000/g max Fungi number 100/g max pathogene number None 3.Analysis method of Assay HPLC.Mobile phase,n-hexane:n-pentanol=996:4,Velocity,2.0ml/min.Wavelenght,254nm. 4.Usage Used as additives in milk powder,rice flour,soft drink and calcium preparation. 5.Packing Aluminum bags lined with food grade PE bags,then packaged into paper cartons.The package size can be made as per customers' requirement. 6.Stability and storage Cold water dispersible.High Heat,Air,and Light Stability.The shelf life is 12 months.