Tetramethylammonium hydroxide, 25% w/w aq. soln., Thermo Scientific Chemicals

Description

Tetramethylammonium hydroxide is used to produce tetramethyl-ammonium azide. It is used as an anisotropic etchant of silicon, as a basic solvent in the development of acidic photoresist in photolithography process, as a 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 brighteners and as a cleaning agent. It is also involved in the purification of some metallic elements.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Tetramethylammonium hydroxide is used to produce tetramethyl-ammonium azide. It is used as an anisotropic etchant of silicon, as a basic solvent in the development of acidic photoresist in photolithography process, as a 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 brighteners and as a cleaning agent. It is also involved in the purification of some metallic elements.

Solubility
Miscible with water.

Notes
Air sensitive. Incompatible with strong oxidizing agents, strong acids, aluminum, alkali metals, strong oxidizing agents, acids, acid chlorides, acid anhydrides and halogens.

Specifications

Chemical Identifiers

• CAS: 75-59-2
• Molecular Formula: C4H13NO
• MDL Number: MFCD00008280
• InChI Key: WGTYBPLFGIVFAS-UHFFFAOYSA-M
• Synonym: tetramethylammonium hydroxide, tmah, hydroxyde de tetramethylammonium, nmw-w, nmd 3, tetramethyl ammonium hydroxide, unii-5gkp7317q2, ammonium, tetramethyl-, hydroxide, methanaminium, n,n,n-trimethyl-, hydroxide, tetramethylammoniumhydroxide
• PubChem CID: 60966

• Density: 1.014
• Boiling Point: ∼102°C
• Linear Formula: (CH₃)₄NOH
• Refractive Index: 1.384
• Quantity: 25 mL
• UN Number: UN1835
• Beilstein: 3558708
• Sensitivity: Air Sensitive
• Merck Index: 14,9224
• Solubility Information: Miscible with water.
• SMILES: [OH-].C[N+](C)(C)C
• IUPAC Name: tetramethylazanium hydroxide
• Molecular Weight (g/mol): 91.15
• Formula Weight: 91.15
• Concentration or Composition (by Analyte or Components): 25% w/w aq. soln.
• Chemical Name or Material: Tetramethylammonium hydroxide

RUO – Research Use Only