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| Products--High purity photoelectric grade calcium carbonate |
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| Properties: White powder, insoluble in water | | Technical Standard : | | CaCO3％ ≥99.00 | | SrCO3％ ≤0.03 | | Fe2O3％ ≤0.001 | | BaO％ ≤0.005 | | Na+％ ≤ 0.002 | | SO42-％ ≤0.015 | | Mg2+％ ≤0.005 | | Cl¯％ ≤0.005 | | Al2O3 ≤0.002 | | SSA（m2 /g） 2.5-3.5 | | Particle Morphology Spherical or Nearly Spherical |
|  | High purity photoelectric grade calcium carbonate scanning electron photo 
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