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

Catalog No. p-7045256
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Quantity:
100 mL
2500 mL
500 mL
Catalog No. Quantity
AAL09991AE 100 mL
AAL09991AP 500 mL
AAL099910F 2500 mL
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Catalog No. AAL09991AE

Supplier: Thermo Scientific Chemicals L09991AE

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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.

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

Specifications

Density 1.014
Boiling Point ∼102°C
Refractive Index 1.384
Linear Formula (CH3)4NOH
Quantity 100 mL
UN Number UN1835
Beilstein 3558708
Sensitivity Air Sensitive
Merck Index 14,9224
Solubility Information Miscible with water.
SMILES C[N+](C)(C)C.[OH-]
IUPAC Name tetramethylazanium;hydroxide
Molecular Weight (g/mol) 91.154
Formula Weight 91.15
Concentration or Composition (by Analyte or Components) 25% w/w aq. soln.
Chemical Name or Material Tetramethylammonium hydroxide
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Safety and Handling

Hazard Category H301-H310-H314-H370-H372
Hazard Statement GHS H Statement
H300-H310-H370-H372-H314
Fatal if swallowed.
Fatal in contact with skin.
Causes damage to organs.
Causes damage to organs through prolonged or repeated exposure.
Causes severe skin burns and eye damage.
Precautionary Statement P260-P264b-P270-P280-P303+P361+P353-P304+P340-P305+P351+P338-P310-P330-P331-P363-P501c
DOTInformation Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: TETRAMETHYLAMMONIUM HYDROXIDE SOLUTION
EINECSNumber 200-882-9
RTECSNumber PA0875000
TSCA Yes
Recommended Storage Ambient temperatures; Store under Nitrogen

RUO – Research Use Only