超微细·滑石粉
Mesars: MEI LI MEI CHEMICAL MINING CO；LTD.
The following merchandise was submitted and identifien
by the client as：
Type of product： TALC MISTRON VAPOR POWDER
Manufacturer / Vendor： TAIWAN DAH HER MINING CHEMISTRY CO.，LTD.
Country of origin：CHINA
Test Required: 1） Chemical analysis and Physical Properties.
2） He***y metal contents of submitted sericite powder.
3） Bacteriological test.
Test Method: 1） The powder was digested in concent cated nitric acid.
Analysis by atomic absorption techniques.
2） Total Plate Count － US FDA Bacteriological Analytical
manual 6TH Edition. 1984. Chapter 1 and chapter 4.
Test Results：
1) Chemical analysis and Physical Properties
Whitenss (白度) 95 %GE
Bulk Density (***重) 0.45 g/cm3
Specific Gr***ity (原矿比重) 2.7 g/cm3
Loss on Ignition (烧热减量) 4.51
Particle Size (粒径细度) 6 μm
Silicon Dioxide (二氧化硅) 58.52 %
Aluminum oxide (三氧化铝) 1.62 %
Potassium oxide (氧化钾) 4.22 %
Magnesium oxide (氧化镁) 33.5 %
Ferric oxide (三氧化二铁) 0.01 %
Test Results：
2) He***y metal (***)
Lead (铅)┈┈┈┈┈┈┈┈┈┈┄┄ Less than 3 ppm
Antimony (锑)┈┈┈┈┈┈┈┈┈┈┄┄ Less than 1 ppm
Arsenic (***)┈┈┈┈┈┈┈┈┈┈┄┄ Less than 3 ppm
Barium (钡)┈┈┈┈┈┈┈┈ Did Not impart Green color
Cadmium (镉)┈┈┈┈┈┈┈┈┈┈┄┄ Less than 1 ppm
Chromium (铬)┈┈┈┈┈┈┈┈┈┈┄┄ Less than 1 ppm
Mercury (***)┈┈┈┈┈┈┈┈┈┈┄┄ Less than 1 ppm
Iron (铁)┈┈┈┈┈┈┈┈┈┈┄┄┈┈ 0.1 %
PPm = Parts Per million ( mg / kg )
3) Bacteriological test Total Plate Count ------------------- 40/gm