Is Thiourea Dioxide Stronger than Sodium Hydrosulfite?

Under suitable alkaline and thermal activation conditions, Thiourea Dioxide can provide a very strong reducing environment.

Maximum reduction potentials of approximately −1230 mV for thiourea dioxide versus −1080 mV for sodium hydrosulfite, although the exact value depends strongly on measurement conditions, pH, temperature and test methodology.

Therefore, these numbers should be used as comparative technical reference values rather than universal process specifications.

For customers, the more meaningful test is: can Thiourea Dioxide achieve the same or better fabric cleanliness at equal or lower total chemical cost?