比重(g/cm³)

SpecificGravity

4.35~4.40

4.35~4.40

4.40

4.40

4.40

粒径(微米)

ParticleSize(μm（�/span>

D504.0±0.5

D9712.0±2.0

D502.0±0.2

D977.0±0.5

D501.6±0.2

D975.0±0.5

D501.4±0.2

D974.0±0.5

D501.3±0.2

D973.5±0.3

白度(%)

Whiteness＇�/span>R457)

85~92

85~92

85~92

85~92

85~92

吸油�?nbsp;(%)

OilAbsorption

9~11

10~12

11~13

11~13

11~13

pH倻�/span>

pHValue

7~9

7~9

7~9

7~9

7~9

硫酸钠�/span>(%)

Ba(+Sr)SO4

�?7

�?/span>97

�?/span>98

�?/span>99

�?/span>99

氧化钘�/span>(%)

CaO

≣�/span>0.5

≣�/span>0.5

≣�/span>0.3

≣�/span>0.3

≣�/span>0.2

灼烧夰�/span>野�/span>(%)

Loss on Ignition

≣�/span>0.5

≣�/span>0.5

≣�/span>0.2

≣�/span>0.5

≣�/span>0.5

水分(%)

Moisture

≣�/span>0.2

≣�/span>0.2

≣�/span>0.2

≣�/span>0.2

≣�/span>0.2

325�?/span>筛余�?/span>(%)

ResidueGreater than45μm

0

0

0

0

0