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Tetramethylammonium hydroxide is used to produce tetramethyl-ammonium azide. It is used as an anisotropic etchant of silicon, basic solvent in the development of acidic photoresist in photolithography process, as surfactant in the synthesis of ferrofluid and as a polarographic reagent. It finds application in the production of organic silicon, where it is used for computer silicon wafer surface brightener and cleaning agent. It is also involved in the purification of some metallic elements.
Whang, L. M.; Hu, T. H.; Liu, P. W. G.; Hung, Y. C.; Fukushima, T.; Wu, Y. J.; Chang, S. H. Molecular analysis of methanogens involved in methanogenic degradation of tetramethylammonium hydroxide in full-scale bioreactors. Appl. Microbiol. Biotechnol. 2015, 99 (3), 1485-1497.
Yin, X.; Li, Z.; Wang, S.; Chu, N.; Yang, J.; Wang, J. Hydrothermal synthesis of hierarchical zeolite T aggregates using tetramethylammonium hydroxide as single template. Microporous Mesoporous Mater. 2015, 201, 247-257.
Hazard Statements: H301-H310-H314-H370-H372
Toxic if swallowed. Fatal in contact with skin. Causes severe skin burns and eye damage. Causes damage to organs. Causes damage to organs through prolonged or repeated exposure.
Precautionary Statements: P260-P264b-P270-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P501c
Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Rinse mouth. Do NOT induce vomiting. Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant