Caustic Soda Flakes consist essentially of sodium hydroxide in its solid crystalline form. Sodium hydroxide is a strong base with an empirical formula of NaOH and a CAS number of 1310-73-2. The flakes have a characteristic high alkalinity due to the presence of hydroxide ions, which are highly reactive with acids and organic compounds. On dissolution in water, they produce a strongly alkaline solution typically yielding pH levels above 13, depending on concentration.
The flakes are produced through the electrolytic chlor-alkali process, where brine (saltwater) undergoes electrolysis to form chlorine, hydrogen, and sodium hydroxide. The sodium hydroxide solution is then further processed and crystallized to yield solid flakes. This form offers advantages in transport, storage, and controlled dosing, compared to liquid caustic soda.
Key performance parameters for Caustic Soda Flakes include high purity (usually near 99%) and low levels of impurities such as sodium chloride or sodium carbonate. Purity impacts not only reactivity but also residue formation in delicate industrial processes. Buyers should confirm exact purity and grade with suppliers to match their specific application requirements.
The flakes are highly soluble, enabling quick dissolution in water to form strong alkaline solutions necessary for neutralization reactions, saponification in soap production, or breaking down cellulose and other organic fibers in textiles and paper manufacturing. Their corrosive nature necessitates cautious handling but underlines their potency in chemical processing.
Zenco Systems Ltd supplies these flakes in strict conformance with industrial regulatory standards relevant to Kenya, Uganda, and Tanzania. This ensures their suitability across the spectrum of water treatment chemicals as well as manufacturing and refining sectors operating in East Africa.