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Tetramethylammonium hydroxide, 25% w/w aq. soln., Electronic Grade, 99.9999% (metals basis), Thermo Scientific Chemicals
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.
Specifications
Specifications
| Color | Colorless to Yellow |
| Density | 1.016 g/mL |
| Boiling Point | ∼102°C |
| Linear Formula | (CH3)4NOH |
| Refractive Index | 1.384 |
| Quantity | 250 mL |
| UN Number | UN1835 |
| Beilstein | 3558708 |
| Sensitivity | Air Sensitive |
| Merck Index | 14,9224 |
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Safety and Handling
- Tetramethylammonium hydroxide, 25% w/w aqueous soluion, Electronic Grade
- Danger
- 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
- 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.
- 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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