Sodium Thiosulfate Pentahydrate - Volumetric Applications

0.1N standardized Na2S2O3·5H2O quantifies vitamin C, residual chlorine, and available iodine across pharmacopeial compliance testing.

Quality control laboratories titrate commercial bleach confirming 5-6% NaOCl preventing hospital disinfection failures.

Quality control certificates 99.5%+ assay, hydration stoichiometry, and 5-year stability. Primary standard prevents bias propagation.