sulfur + thiosulfate + sulfate + H(+) => tetrathionate + H2O
sulfur + thiosulfate + sulfate + h(+) => tetrathionate + h2o
sulfur + thiosulfate + sulfate + H(+) => tetrathionate + H2O
sulfur + thiosulfate + sulfate + h(+) => tetrathionate + h2o