SODIUM THIOSULFATE PENTAHYDRATE (C005B-003889)

Analysis Note

Purity (metallic): ≥ 99.999 %
Assay (iodometric, calculated as pentahydrate): ≥ 99.0 %
Phosphate (PO₄): ≤ 5 ppm
Al (Aluminium): ≤ 0.05 ppm
Ba (Barium): ≤ 2.0 ppm
Bi (Bismuth): ≤ 0.01 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.010 ppm
Co (Cobalt): ≤ 0.010 ppm
Ce (Cerium): ≤ 0.010 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.010 ppm
Eu (Europium): ≤ 0.010 ppm
Fe (Iron): ≤ 0.05 ppm
K (Potassium): ≤ 5.0 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 1.0 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.050 ppm
Ni (Nickel): ≤ 0.05 ppm
Pb (Lead): ≤ 0.05 ppm
Rb (Rubidium): ≤ 1.0 ppm
Sc (Scandium): ≤ 0.010 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.010 ppm
Yb (Ytterbium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.050 ppm

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Molecular Weight: 248.18. Empirical Formula: Na₂O₃S₂ · 5H₂O. grade: for inorganic trace analysis. Quality Level: 100. Assay: 99.999%. form: solid. potency: >. 5000 . mg/kg LD₅₀, oral (Rat). pH: 6.0-7.5 (20 . °C, 100 . g/L in H₂O). mp: 48 . °C. solubility: 701 . g/L. density: 1.74 . g/cm³ . at 20 . °C. bulk density: 1000 . kg/m³. storage temp.: 2-30°C. InChI: 1S/2Na.H2O3S2.5H2O/c. . 1-5(2,3)4. . . . . /h. . (H2,1,2,3,4). 5*1H2/q2*+1. . . . . . /p-2. InChI key: PODWXQQNRWNDGD-UHFFFAOYSA-L. Storage Class Code: 11 - Combustible Solids. WGK: WGK 1. Flash Point(F): Not applicable. Flash Point(C): Not applicable.