| Compound | Description |
|---|
| hydronium ion | |
| Water | A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
| dithionite | Dithionite. The dithionous acid ion and its salts. |
| sulfites | Inorganic salts of sulfurous acid. |
| octoxynol | Nonionic surfactant mixtures varying in the number of repeating ethoxy (oxy-1,2-ethanediyl) groups. They are used as detergents, emulsifiers, wetting agents, defoaming agents, etc. Octoxynol-9, the compound with 9 repeating ethoxy groups, is a spermatocide. |
| metabisulfite | see also related Na metabisulfite & K metabisulfite |