外观

白色粉末

合格

钙含量%

6.9±0.4

6.8

游离酸（以硬脂酸计）%

≤1.0

0.3

                                                                                                                                                                                                                                                                                                                                                                                                                               加减热含量

≤3%

2.1

熔点℃

≥130

145

细度（0.075mm筛通过）

≥99.0

99.5