SODIUM METABISULPHITE Specification: ¢ÅSulphur Dioxide Content:65.2% ¢ÆIron Content:0.005% ¢ÇInsoluble Matter In Water:0.048% ¢ÈPH Value :4.5 ¢ÉPB:0.001% ¢ÊAS:0.0002% Packing: 25kg/plastic woven bag ; 25mt(1000bags)20¡¯ (the above is the specification and packing of the goods for customer¡¯s reference.we can supply goods as customer¡¯s demands)