Tetramethylammonium Hydroxide, 25 Percent Solution in Water | Spectrum Chemical®​​

Tetramethylammonium Hydroxide, 25 Percent Solution in Water, also known as TMAH, is a quaternary ammonium salt that is used for the anisotropic etching of silicon. 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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