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GRADE CODE

PARTICLES SIZE

CHEMICAL COMPOSITION

 

MSH1+

MSHA1+

D­50 1 ± 0.1 µm

D97 6 ± 1 µm

(2500mesh)

 

CaCO3

98%

 

FeO3

0.02% max

 

MSH1

MSHA1

D­50 1.5 ± 0.3 µm

D97  8 ± 3 µm

(1750mesh)

MgO

0.02% max

 

SiO2.

0.03 % max

 

Al2O3

0.01 % max

 

MSH2

MSHA2S

D­50 2 ± 0.3 µm

D97 12 ± 3 µm

(1200mesh)

PHYSICAL PROPERTIES

 

Whiteness

98%

 

MSH3

MSHA2PL

D­50 2.7 ± 0.3 µm

D97  15 ± 3 µm (1000mesh)

Brightness

96%

 

Moisture

0.2% max

 

Oil Absorption

23.00g/100g CaCO3

 

MSH4

MSHA3

D­50 3.7 ± 0.3 µm

D97 21 ± 3 µm

(625mesh)

Density

2.7g/cm3

 

Hardness

2.7-3 Moh

 

PH Value

8 ÷ 9

 

MSH5

D­50 4.5 ± 0.3 µm

D97  26 ± 3µm

(600mesh)

Specific Gravity

2.65 ÷ 2.7g/cm3

 

Loss at 900oC

42-44 %

 

Loss at 105oC

0.2 % - 0.4 %

 

*MSH: Un-coated powder

*MSHA: Coated powder

Effective from 2015

Acid Insoluble

0.3% max

 

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