Sodium thiosulfate pentahydrate AGR, 1 kg

App. Colourless cryst.

Assay 99.5 - 100.5%

Insol. matter < 0.005%,Reaction (pH) 6.0 - 7.5,N Comp. (N) < 0.002%,Cl^- < 0.01%,SO₄ < 0.05%,S < 0.0001%,Pb < 0.0005%,Ca < 0.002%,Fe < 0.0005%,K < 0.005%,Mg < 0.001%