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Technical grade of Sodium Metabisulfite: Purity: 97.0% min Sulfur Dioxide: 65.0% min Water Insolubles: 0.1% max PH Value: 4.0-4.6 Iron (as Fe): 30ppm max Appearance: White or yellowish Crystal Powder Food grade: Purity: 98. 0% min Sulfur Dioxide: 66. 0% min Water Insolubles: 0. 05% max PH Value: 4. 0-4. 6 Iron (as Fe) : 10ppm max Arsenic (as As) : 2ppm max Heavy Metals (as Pb) : 10ppm max Appearance: White Crystal Powder
Technical grade of Sodium Metabisulfite: Purity: 97.0% min Sulfur Dioxide: 65.0% min Water Insolubles: 0.1% max PH Value: 4.0-4.6 Iron (as Fe): 30ppm max Appearance: White or yellowish Crystal Powder Food grade: Purity: 98. 0% min Sulfur Dioxide: 66. 0% min Water Insolubles: 0. 05% max PH Value: 4. 0-4. 6 Iron (as Fe) : 10ppm max Arsenic (as As) : 2ppm max Heavy Metals (as Pb) : 10ppm max Appearance: White Crystal Powder
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