This standard specifies the nano synthetic hydrotalcite of Mg and Al molar ratio (MgO and Al < subscript 2> O < subscript 3 > molar ratio), Zn and Al molar ratio (ZnO and Al < subscript 2> O < next standard 3> molar ratio), magnesia, alumina, zinc oxide, heavy metals (as Pb), iron (Fe), pH value, whiteness, Loss on drying (105 ℃), laser particle size (D < subscript 90>), the average particle diameter of electron microscopy, aggregate index, the specific surface area and a bulk density analysis. This standard applies to nano- synthetic hydrotalcite in the determination of the physical and chemical data.
