碳酸钾Potassium Carbonate碳酸钾Purity 98.5%min 99%min 96.0%min硫化合物Sulphate 0.1%max 0.04%max 0.15max氯化物 0.1%max 0.03%max 0.20max水不溶物Insoluble matter 0.05%max 0.04%max 0.10max灼烧失量Burnt loss 1.0%max 0.7%max 1.00max铁含量Iron 0.003%max 0.001%max 0.01max