r r r r r r 外观r r r r r 自由流动颗粒,无结块r r r r r r r 气味r r r r r 无异味r r r r r r r 视比重r r r r r 750- -1050g/mlr r r r r r r 崩解时间r r r r r ≤300sr r r r r r r 粒径 ≥25mm, %r r r r r ≤5.0r r r r r r r 粒径 ≥0.45-1.25mm, %r r r r r ≥80r r r r r r r 粒径 ≤0.180mm, %r r r r r ≤5.0r r r r r r r PH值(1%水溶液, 25℃)r r r r r 7.0-10.0r r r r r r r 纯碱含量, %r r r r r 0r r r r r r r 干燥失重, %r r r r r ≤8.0r r r r r r
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