Sodium Hydroxide 47% Solution has a variety of uses but is typically used in industrial applications, to increase pH and as a powerful cleaner and drain unblocker.

Sodium hydroxide 47% will crystallise at ~12Deg C so needs to be stored above this. If crystalisation occurs then it will need thawing out fully before use.

Available with certificates of analysis and specifications for all your quality assurance needs.

If you dont see the packaging size you require please get in touch, we are able to supply all our products in any package size.

CAS Number


Einecs Number


% Active


Chemical Formula


Molecular Weight



Caustic Soda


Sodium Hydrate


White Caustic

H314 – Causes severe skin burns and eye damage.
H290 – May be corrosive to metals.

P280 – Wear protective gloves/ protective clothing/ eye protection.
P305+P351+P338 – IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P303+P361+P353 – IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
P304+P340+P310 – IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/ doctor.