Index name

Index

Density (20℃), g/cm³ ≥

1.06 ～1.40

——

pH value (10g/L aqueous solution)

3.5～5.0

Mass fraction of alumina (with Al₂O₃),% ≥

≥10.0

29.0

Mass fraction of iron (Fe₂O₃), % ≥

0.5

1.5

Basicity,%

40.0 ～90 .0

Mass fraction of insoluble matter, % ≤

0.2

0.6

Arsenic (calculated as As) content, % ≤

0.0002

Mass fraction of lead (Pb), % ≤

0.001

Mass fraction of cadmium (Cd), % ≤

0.0002

Mass fraction of mercury (Hg),% ≤

0.00001

Mass fraction of hexavalent chromium ( Cr⁺⁶ ), % ≤

0.0005

Note: the liquid product listed in the table of As , Pb , of Cd , Hg , of Cr⁺⁶ are by of Al₂O₃ 10% calculation , of Al₂O₃ content ≠ 10% when , solids content of the product should be translated into actual of Al₂O₃ For 10% products , calculate the index of various impurities.