First, you use heat to drive off ammonium chloride as white fumes...no? Then you mix sand and salt in water, salt dissolves, you filter sand out, then boil water to get salt. But ha, in my days at school in Rajkot, we never had that Chinese-made funnel paper. We used clean cotton gamcha cloth to filter. Worked the same, bhau.
#athletics#track-and-field
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