Sodium metabisulfite industrial/ food grade
Product Name: Sodium metabisulfite
Category: Inorganic chemical/inorganic salt
CAS NO: 7681-57-4
EC NO: 231-673-0
Molecular Formula: Na2S2O5
H.S code: 283210 0000
Specifications:
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Item
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Quality
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Food grade
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Tech grade
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Purity (Na2S2O5)
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≥98.0%
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≥970%
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Sulfur dioxide (SO2)
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≥65.0%
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65.0%
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Arsenic (As )
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≤0.0002%
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-
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Heavy metal (Pb)
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≤0.0005%
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-
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Selenium (Se )
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≤0.0005%
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-
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Iron (Fe)
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≤0.001%
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≤0.002%
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Insol. in water
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≤0.02%
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≤0.05%
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PH-value
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4.0-4.8
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4.0-4.8
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Remarks
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Meet FCC V and E 223 standard
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Use: As mordant for printing & dyeing; as dechlorinating agent for textile bleaching; as reducing agent and sulfonating agent for chemical and medical industries etc. Food grade for food activities, antistaling agent etc
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