无水亚硫酸钠

检测项目 食品级 高纯级 工业级
亚硫酸钠 (Na2SO3) % ≥ 97 98 97
铁 (Fe) % ≤ 0.001 0.001 0.003
游离碱 (Na2CO3) % ≤ 0.4 0.05 0.1
重金属 (Pb) % ≤ 0.0005 0.0001 --
砷 (As content) % ≤ 0.0002 0.0001 --
澄清度 通过实验 通过实验 --
水不溶物 % ≤ -- -- 0.02
硫酸盐 (Na2SO4 ) % ≤ -- -- 2.5
氯化物 (NaCl) % ≤ -- -- 0.1
包装:25kg、50kg、1000kg袋。
 



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