Food Grade Magnesium Sulfate Heptahydrate
China [CN] 
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National
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Meishen
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Item
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FCCV
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Standard
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Company
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China
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Standard
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fine, white or
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fine, white or
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fine, white or almost
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Aprearance
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almost white
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almost white
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white powder
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powder
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powder
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Identification
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Standard
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Standard
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Standard
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PH Value
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N/A
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5.5-7.5
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5.5-7.5
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Purity (as MgO) NLT
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99.50%
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99.00%
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99.60%
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Chloride NMT
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N/A
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0.030%
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0.010%
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Loss on ignition （800±
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40%-52%
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48%-52%
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48%-52%
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50°C） NMT
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Maganese NMT
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N/A
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1ppm
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1ppm
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Selenium (Se) NMT
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30ppm
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30ppm
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30ppm
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Lead （Pb）NMT
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4ppm
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2ppm
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2ppm
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Arsenic （As) NMT
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3ppm
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3ppm
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1.5ppm
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Total Plate Count: NMT 300cfu/g
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Microbiological Data
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Molds and Microzyme: NMT 30cfu/g
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E.Coli: Negative
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