| Titanium Dioxide | A white powder used as a pigment for its high covering power and durability. |
| Fertilizer | Any of a large number of natural and synthetic materials, including manure and nitrogen, phosphorus, and potassium compounds, spread on or worked into soil to increase its capacity to support plant growth. |
| Sulphate | A chemical compound containing the bivalent group SO4. |
| Bromide | A binary compound of bromine with another element, such as silver. |
| Rubber Stopper | A rubber bung used to seal a flask. |