Methods of test for orthoboric acid (boric acid), diboron trioxide (boric oxide), disodium tetraborates, sodium perborates and crude sodium borates for industrial use - Determination of iron soluble i

• 工业用原硼酸(硼酸)、三氧化二硼(氧化硼)、四硼酸二钠、高硼酸钠和粗硼砂的试验方法。溶于粗硼砂中碱性介质