The inhibition of pyrocatechol on sulfite oxidation was investigated by oxygen removal and air oxidation tests. 通过除氧试验和空气氧化试验，研究了焦儿茶酚对亚硫酸盐自动氧化的阻滞作用。
The bath, containing both thiosulfate and sulfite as complexion agents, is non-toxic, suitable for storage and operation. 另外，此溶液包含硫代硫酸盐与亚硫酸盐，属于一种非毒性物质，故可以很容易的贮存和操作。
