重碱

指标项目

Items

指标值

Standard Values

实测值

Actual Values

外观

Outward

白色细小颗粒

White fine particle

白色细小颗粒

White fine particle

总碱量（以干基的Na₂CO₃的质量分数计）%

Total alkalinity (measured by the mass fraction of dry base Na₂CO₃)

≥99.2

99.5

总碱量（以湿基的Na₂CO₃计的质量分数计）%

Total alkalinity (measured by mass fraction of wet base Na₂CO₃) %

≥97.9

99.2

氯化钠（以干基的NaCl的质量分数计）%

Sodium chloride (measured by the mass fraction of dry base NaCl) %

≤0.70

0.27

铁（Fe）的质量分数（干基计）/%

measured by the mass fraction of dry base Fe) /%

≤0.0035

0.0020

硫酸盐（以干基的SO₄的质量分数计）/%

Sulphates (measured by the mass fraction of dry base SO4 s) /%

≤0.03

0.01

水不溶物的质量分数/%

The mass fraction of water insoluble matter /%

≤0.03

0.01

堆积密度g/ml

bulk density g/ml

≥0.90

1.10

粒度，筛余物/%180um

Particle size,Screenings/%180um

≥70.0

88.1