Package: plastic knitting sack lined with double layers of plastic film.net 25kgs per sack.it should be storeed in cool,dry and ventilated place and protected against moisture.

Molecular Structure:

Product description: property:white crystalline powder.it can disslove in water and slightly in ethanol.the water solution is acid.expoesd in air will humidify it. Quality specification Item Index Content, % ≥ 98.0 Acidity，% ≥ 38 Fe，% ≤ 0.08 Insoluble substance in water, % ≤ 0.10 Water，% ≤ 0.4 application:this product can be used as auxiliary agent for dyeing;solvent for melting mineral;disinfctant and detergent for in faily chemical industry;raw material for sulfate salts and sodium alum;and also used as petroleum artesian well and ameliorant.