USP/NFreag. Ph. Eur.
100
puriss. p.a.
98-100.0% (iodometric)
solid
≤0.001% heavy metals (as Pb)≤0.02% thiosulfate (S2O3)
9.0-10.5 (25 °C, 126 g/L)
chloride (Cl-): ≤50 mg/kg
As: ≤0.2 mg/kgCa: ≤50 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgPb: ≤5 mg/kgSe: ≤10 mg/kgZn: ≤10 mg/kg
[Na+].[Na+].[O-]S([O-])=O
1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
GEHJYWRUCIMESM-UHFFFAOYSA-L
13 - Non Combustible Solids
WGK 1