USD $20.00-25.00 / Kilogram
product name: sodium metabisulfite / sodium metabisulphite
molecular weight: 190.10
specification: 25kg woven bag
quality guarantee period: 6 months
appearance: white crystalline powder
molecular formula: na2sio3·5h2o
technical requirements:
|
top quality |
first quality |
sodium oxide(na2o) % |
28.0-30.0 |
27.0-30.5 |
silicon dioxide(sio2) % |
27.0-29.2 |
26.0-29.0 |
iron(fe) ppm |
≤0.01 |
≤0.03 |
characteristics: easily soluble in water. aqueous solution appears basic. melting point:72°c.
uses: easily soluble in water. aqueous solution appears basic.