Food Grade Precipitated Calcium Carbonate (PCC)
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Test Item |
Specification
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1.
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Characteristic
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Clean odorless, fine white powder
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2.A
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Identification
(Carbonate, CO32-)
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Effervesce with acids, evolving a colorless gas that when passed into Ca(OH)2, produces a white precipitate.
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2.B
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Identification
(Calcium salt, Ca2+)
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Moistened with HCL, impact a transient yellowish red color to a nonluminous flame
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3.
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Acid insoluble % ≤
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0.2
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4.
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Loss on drying % ≤
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0.5
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5.
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Barium salt
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No green flame
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6.
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Magnesium and alkali metals % ≤
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1.0
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7.
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Iron % ≤
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0.04
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8.
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Heavy metals % ≤
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0.002
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9.
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Arsenic salt % ≤
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0.0003
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10.
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Fluoride % ≤
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0.005
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11.
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Lead % ≤
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0.0003
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12.
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Mercury % ≤
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0.00005
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13.
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CaCO3 Content (Dry basis) %
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98.0-100.5
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