SODIUM HYDROSULFITE Properties  : White crystal powder Packing :    Sealed iron drums with two-layers plastic bags lined，the net weight is 50kg. Formula:      Na2S2O4 MSDS     Items Grade High-class Exportation grade Content of Na2S2O4%： ≥90 88 Water insolubles %： ≤0.1 0.1

Dangerous articles classification:  4.2

Serial number of international dangerous articles rules:   1384

Quantity in conformity with HG2074-91 standard promulgated by Chemical Industry Ministry of P.R. of China and Japan JISK1476-1992 standard

Notes:  When storage and shipment, be protected from damp, moisture, fire and handle it with care.