Barium Carbonate

Items

Index

Blue Chip

First Quality

Acceptable Product

Main content（BaCO3） ％ ≥

99.2

99.0

98.5

Water content ％ ≤

0.30

0.30

0.30

Ignition residue of the insolublesubstance of chlorhydric acid ％ ≤

0.15

0.25

0.50

Sulfur（SO4） ％ ≤

0.25

0.35

0.45

Chloridate（Cl） ％ ≤

0.01

----

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Iron (Fe) content ％ ≤

0.004

0.004

0.008

degree offineness

125μm powdery screenings ％ ≤

0.20

0.30

0.50

850μm powdery screenings ％ ≤

1

1

1

125μm powdery screenings ％ ≤

85

85

85

Among them: (1) The 45μm powderytesting screenings used by the ceramic capacitor are no more 1%.(2)The index parameter of the ignition residue of the insolublesubstance of chlorhydric acid shall be determined by supplying andrequisitioning parties.

Packaging: 　
　(1) The powdery barium carbonate is packed in plasticwoven bags, with plastic lining bags.
　(2)The granular barium carbonate ispacked in the woven compound bag.

　(3)Theinside and outside bags shall be tied manually.

　　　(4)Thespecification of the packaging is 11000Kg±2Kg or 25Kg±0.5Kg. Ifspecial packaging is required, the specification shall bedetermined by supplying and requisitioning parties.
　(5) The package bag shall have orenclose: the name of the factory, the site of the factory, the nameof product, trade mark, net weight, lot number, certificate provingthat the products meet the standard, and the sign of “harmfulproduct”.