Wesol Caustic Soda Flakes, 800g, Multi-Purpose Declogger and Degreaser for Drains, Chimneys, Stoves, Pipes and Soap Making
Solid caustic soda beads sink in water (density ~2.13 g/cm³ vs water 1.0). Unlike liquid acids that mix instantly, solid NaOH settles into the trap’s water seal. As it dissolves, it creates a . This allows concentrated OH⁻ to attack the blockage from below, lifting it via gas production (if any acid residue present) or simply dissolving it upward. caustic soda for unblocking toilet
High-concentration NaOH (pH >13.5) slowly attacks the silica-based glaze: SiO₂ (glaze) + 2 NaOH → Na₂SiO₃ (sodium silicate, soluble) + H₂O Prolonged or repeated use etches the glaze, making the surface rougher and more prone to future bacterial adhesion and staining. Wesol Caustic Soda Flakes, 800g, Multi-Purpose Declogger and
To understand why caustic soda is effective, one must understand its chemical mechanism. Sodium hydroxide is a highly alkaline compound. When introduced to water, it creates an exothermic reaction, generating significant heat. More importantly, it initiates a process called saponification when it comes into contact with organic matter. In simple terms, caustic soda turns fats, oils, grease, and hair—common culprits of toilet clogs—into a soapy, soluble substance. It essentially liquefies the blockage, allowing it to be flushed away. Unlike acidic drain cleaners which essentially burn a hole through a clog, caustic soda breaks down the molecular structure of the waste, offering a more thorough clearance. This allows concentrated OH⁻ to attack the blockage