How dangerous is TMAH?

TMAH is extremely corrosive to skin, eyes, and mucous membranes and will cause serious burns to eyes, and skin on contact. In addition to causing chemical burns, TMAH can cause systemic neurotoxicity leading to respiratory failure by ganglion block that occurs through skin absorption.

Is TMAH an acid or base?

It is a very strong base with a pH >13. Concentrations between 10 and 25% TMAH will cause 2nd and 3rd degree burns if exposed to skin.

How do you get rid of TMAH?

The optimum conditions for TMAH removal was 25 °C and pH 10. Within 90 min of the nano-ozone/H2O2 process, TOC removal was 65 % while 80 % of nitrogen was converted into nitrate (NO3−) with 95 % of TMAM removal.

Is TMAH flammable?

TMAH is incompatibilities with strong acids and oxidizing agents. It will attack many plastics and rubber. It may react with metallic aluminum and generate hydrogen gas, which is flammable.

When do you need a hazard control plan for TMAH?

Systemic toxicity is likely to occur with dermal exposure. When heated to decomposition, TMAH emits toxic fumes of NOx and ammonia. A Hazard Control Plan is recommended for procedures involving TMAH over 5%, and one may be required by EHRS under certain circumstances. Contact EHRS for assistance with your hazard assessment.

What do you need to know about TMAH?

Students and employees who handle TMAH must have read the Safety Data Sheet (SDS) and receive training on the hazards of TMAH from their respective department. They must know what to do in the event of a spill or an exposure incident.

What are the health hazards of TMAH pentahydrate?

The health hazards of TMAH pentahydrate (solid) are very similar to those of the solution, however the solid is a GHS hazard category 3 for dermal acute toxicity, whereas the solution is a GHS hazard category 2 (higher hazard) for dermal acute toxicity.

How does tetramethylammonium hydroxide affect the body?

Fact Sheet: TMAH (Tetramethylammonium Hydroxide) TMAH is extremely corrosive to skin, eyes, and mucous membranes and will cause serious burns to eyes, and skin on contact. In addition to causing chemical burns, TMAH can cause systemic neurotoxicity leading to respiratory failure by ganglion block that occurs through skin absorption.