Tetramethylammonium hydroxide
Tetramethylammonium hydroxide 25% solution, TMAH, is widely used as a developer, stripper or etchant in electronics production for e.g. semiconductors and printed circuit boards. It is also used as a laboratory reagent and is a common intermediate for other chemical products.
Details
Chemical Formula
C4H13NO
EC Number
200-882-9
CAS Number
75-59-2
Industries
- Industry chemicals
- Surface treatment & Coatings
Applications
- Electronics
- Laboratory chemical
- Processing aid
- Intermediate
Specification
- Assay: 24.5-25.5%
- Carbonate: <50 ppm
- Chloride (Cl): <0.5 ppm
- APHA Colour: <10
- Particles >0.5 μm: <30 part/mL
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