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  7. Tetramethylammonium hydroxide, 25% w/w aq. soln., Electronic Grade, 99.9999% (metals basis), Thermo Scientific Chemicals

Tetramethylammonium hydroxide, 25% w/w aq. soln., Electronic Grade, 99.9999% (metals basis), Thermo Scientific Chemicals

Product Code. 11357987
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Quantity:
250 mL
1 L

Description

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.

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.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 75-59-2
Molecular Formula C4H13NO
Molecular Weight (g/mol) 91.154
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
IUPAC Name tetramethylazanium;hydroxide
SMILES C[N+](C)(C)C.[OH-]

Specifications

Color Colorless to Yellow
Density 1.016 g/mL
Boiling Point ∼102°C
Linear Formula (CH3)4NOH
Refractive Index 1.384
Quantity 1 L
UN Number 1835
Beilstein 3558708
Sensitivity Air Sensitive
Merck Index 14,9224
Solubility Information Miscible with water.
Formula Weight 91.15
Percent Purity 99.9999%
Grade Electronic
Concentration or Composition (by Analyte or Components) 25% w/w aq. soln.
Physical Form Liquid
Assay (metals basis)
Chemical Name or Material Tetramethylammonium Hydroxide
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Safety and Handling

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Product Identifier
  • Tetramethylammonium hydroxide, 25% w/w aqueous soluion, Electronic Grade
 Signal Word
  • Danger
 Hazard Category
  • Acute toxicity Category 2
  • Specific target organ toxicity after single exposure Category 1
  • Specific target organ toxicity Category 1
  • Skin corrosion/irritation Category 1 B
  • Serious eye damage/eye irritation Category 1
  • LONG-TERM AQUATIC HAZARD Chronic 2
 Hazard Statement
  • H300 + H310-Fatal if swallowed or in contact with skin.
  • H314-Causes severe skin burns and eye damage.
  • H370-Causes damage to organs.
  • H411-Toxic to aquatic life with long lasting effects.
 Precautionary Statement
  • P260-Do not breathe dust/fume/gas/mist/vapours/spray.
  • P301+P310-IF SWALLOWED: Immediately call a POISON CENTER/doctor /
  • P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
  • P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P405-Store locked up.
  • P501-Dispose of contents/container to in accordance with local/regional/national/international regulations..

RUO – Research Use Only

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