Sodium metabisulfite LR 500g ; CAS# 7681-57-4
48108-500g

SPECIFICATION:

Assay 98.0% min

Cl 0.005% max

H.M (as Pb) 0.001 %max

As 0.00005 %max

Fe 0.0005 %max

Cu 0.001%max

Conforms to ACS

Formula: Na2S2O5

MWT= 190.11

CAS 7681-57-4

Non-hazardous for transport