| used as the most common paint stripper on wooden objects. |
| used in conjunction with zinc for creation of the famous "Gold pennies" experiment. |
| is used in the refining of alumina containing ore (bauxite) to produce alumina (aluminium oxide) which is the raw material used to produce aluminium metal via the smelting process. |
| used in soap making (cold process soap, saponification). |
| Food uses of sodium hydroxide include washing or chemical peeling of fruits and vegetables |
| used in the home as a drain cleaning agent for clearing clogged drains. |
| used as a cleaner in breweries, where it is simply called "caustic". |
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