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Purpose: mainly used in medicine industry, manufacturing paper, bleaching plant fiber,food industry, hides tanning and processing, leather printing and dyeing.Packing: Double-layered plastic knitted bag
Item | Standard | Index |
appearance | White crystals powder | |
Most Content% | ≥96% | 96.34 |
Water Insoluble Matter% | ≤0.03% | 0.02 |
Free alkali% | ≤0.40% | 0.35 |
Fe% | ≤0.004% | 0.0039 |
Anhydrous Sodium Sulfite