Aluminum sulfate 15.8%:
Al2O3: minimum 15.8%
· Iron (Fe) content: maximum 0.50%
· Water insoluble matter: maximum 0.15%
· PH value 1% aqueous solution: minimum 3.0%
· Heavy metals as Pb: maximum 0.002%
· AS: maximum 0.0005%
· Aluminum sulfate 17%:
o Al2O3: minimum 17%
o Iron (Fe) content: maximum 0.005%
o Water insoluble matter: maximum 0.15%
o PH value 1% aqueous solution: minimum 3.0%
o Heavy metals as Pb: maximum 0.002%
o AS: maximum 0.0005%
· Granularity: 15mm
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