How: To Unblock Drains With Caustic Soda

It does dissolve mineral scale (limescale), rust, or hard plastic objects. 2. When to Use It (And When Not To) | Suitable for | Unsuitable for | |--------------|----------------| | Kitchen sink (grease, oil, food scraps) | Toilets (can crack porcelain) | | Bathroom sink (hair, soap scum) | Aluminum or galvanized pipes (caustic corrodes them rapidly) | | Shower drains (hair, body oils) | Old cast iron pipes (can worsen rust if used repeatedly) | | Plastic PVC pipes (safe if used correctly) | Complete blockages (liquid cannot reach the clog) | | | Standing water (caustic reacts violently, causing splashing) |

If you do use caustic soda, treat it with the same respect as handling concentrated battery acid—because chemically, it is just as dangerous. how to unblock drains with caustic soda

Fat + NaOH → Glycerol + Soap (water-soluble) Hair (protein) + NaOH → Water-soluble amino acid salts It does dissolve mineral scale (limescale), rust, or

1. What is Caustic Soda? Caustic soda (NaOH) is a strong alkaline chemical. In drain cleaners, it appears as dry white flakes, pellets, or a liquid gel. It works not by dissolving organic matter physically, but by creating a highly exothermic (heat-producing) chemical reaction that hydrolyzes fats, grease, and hair. Fat + NaOH → Glycerol + Soap (water-soluble)