Item

Index

appearance

White crystalline powder

Total alkalinity（NaHCO3）/w/%

99.0～100.5

loss on drying /w/% ≤

0.20

pH（10g/L aqueous solution）/ ≤

8.5

ammonium salt

through experiments

clarity

through experiments

Cl /w/% ≤

0.40

whiteness/≥

85.0

As /（mg/kg） ≤

1.0

heavy metal /（mg/kg） ≤

5.0