1. production capacity 250,000 tons per year 2. Listed company in Hongkong 3. bigbag packing available Product Name ... Substances,%0.7MaxHeavy Metal(Pb), μg/g10MaxSulfate, μg/g0.05 MaxChloride, μg/g0.07 MaxLead, μg/g2MaxArsenic, μg/g2 MaxPH6.2-7.8Uses : 1, used ... as water quality stabilizer or inhibitor . 2, cleaning agent ...