CAS 35103-79-8 — the strongest alkali you've probably never tried

Sodium gets the foodie fame, lithium owns the battery hype, and potassium rules the fruit bowl—meanwhile, in the shadowed corner of our glove-box, sealed under argon and guarded by desiccant, waits the heavyweight that could deprotonate them all: caesium hydroxide monohydrate, CsOH·H₂O. 

And when the stakes rise, this silent powerhouse steps into the spotlight.
• In advanced ceramics it knocks 60–80 °C off the sintering curve, letting PZT or zirconia parts densify faster while cutting kiln energy by double-digit percentages.
• For MEMS foundries a 40 % w/w solution etched <100> silicon at 2 µm min⁻¹, twice the rate of KOH and with mirror-bright sidewalls that need no post-polish.
• Battery scientists add 0.5 M CsOH to high-nickel cathode slurries to neutralize residual lithium carbonate; viscosity stays low, first-cycle Coulombic efficiency jumps four points and gelling is history.
• OLED fabs strip cross-linked photoresist in five minutes at 50 °C, avoiding plasma damage to fragile polyimide substrates.
• Organic chemists love the cesium enolate it forms at –78 °C: weak ion-pairing gives cleaner SN2 pathways and higher ee values than sodium or potassium counterparts.

Whether you need 5 kg for pilot etch trials or 50 t/y for ceramic production, we've got stock. Let's turn up the base — without turning up your energy bill.