Tetramethylammonium Hydroxide
Title: Tetramethylammonium Hydroxide
CAS Registry Number: 75-59-2
CAS Name: N,N,N-Trimethylmethanaminium hydroxide
Molecular Formula: C4H13NO
Molecular Weight: 91.15
Percent Composition: C 52.71%, H 14.38%, N 15.37%, O 17.55%
Line Formula: (CH3)4NOH
Properties: Usually marketed in 10% aq soln. Strong ammonia-like odor. d425 ~1.00. The free base is known only in soln or as a solid pentahydrate, forming colorless, deliquesc needles, mp 63°. On distillation, it dec to trimethylamine and CH3OH. It is a very strong base, readily absorbing CO2 from the air. Keep well closed.
Melting point: mp 63°
Density: d425 ~1.00

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