Sodium Metabisulfite

We are offering our customers a wide range of Sodium Metabisulfite, which are available following Specifications :- Chemical formula: (NaPO3)6 CAS No.: 10124-56-8 Properties: 1. Appearance: White powder; 2. Relative density: 2.484 (20 degree centigrade); 3. Solubility: Easily soluble in water, but not in organic solution; 4. Absorbent to dampness, and turn sticky when absorbed dampness in air 5. Can form soluble chelate with metallic ions such as Ca, Ba, Mg, Cu and Fe Application: 1. Technical grade: Used in such industries as oil field, paper-making, textile, dyeing, petrochemical industry, tanning industry, metallurgical industry and building material industry, and used as a water softening agent in solution for printing, dyeing, and boiler, as diffusant in papermaking; Retarding agent, floating agent, dispersing medium, high temperature agglomerant, detergent and soil analytical chemical reagent; 2. Food grade: Mainly used as additive agent, pH adjusting agent, fermenting agent, and nourishment, etc. Packing: 25kg or 50Kg/woven bag lined with PE liner, or 1000 Kg/Container bag; 20-25mt/20 feet container No. Specifications Industrial Grade Food Grade 1 Total phosphate, as P2O5%a Y 68.0 68.0 2 Inactive phosphate, as P2O5%a 7.5 7.5 3 Iron, as Fe %a 0.05 0.05 4 Ph value (1% solution) %a 5.8-7.3 5.8-6.5 5 Solubility Qualified Qualified 6 Heavy metals, as Pb %a 0.001 7 Arsenic, as As%a 0.0003 8 Fluoride as F%a 0.003