Tetramethylammonium Hydroxide, Pentahydrate | Spectrum Chemical®​​

Tetramethylammonium Hydroxide, Pentahydrate, also known as TMAH, is a quaternary ammonium salt that is used for the anisotropic etching of silicon and as a quaternary amine catalyst in organic synthesis. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.

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