| 1.used as the most common paint stripper on wooden objects. |
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| 2.used in conjunction with zinc for creation of the famous "Gold pennies" experiment. |
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3.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.
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4.used in soap making (cold process soap, saponification).
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| 5.Food uses of sodium hydroxide include washing or chemical peeling of fruits and vegetables |
| 6.used in the home as a drain cleaning agent for clearing clogged drains. |
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| 7.used as a cleaner in breweries, where it is simply called "caustic". |
