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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.
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
Specifications
| Density | 1.014 |
| 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 |
| Solubility Information | Miscible with water. |
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Safety and Handling
- Tetramethylammonium hydroxide, 25% w/w aqueous solution
- Danger
- Acute toxicity Category 2
- Acute toxicity Category 3
- LONG-TERM AQUATIC HAZARD Chronic 2
- Serious eye damage/eye irritation Category 1
- Skin corrosion/irritation Category 1 B
- Specific target organ toxicity after repeated exposure Category 2
- Specific target organ toxicity Category 3
- H301-Toxic if swallowed.
- H310-Fatal in contact with skin.
- H314-Causes severe skin burns and eye damage.
- H318-Causes serious eye damage.
- H370-Causes damage to organs.
- H372-Causes damage to organs.
- H411-Toxic to aquatic life with long lasting effects.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P301+P330+P331-IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
- 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.
- P308+P313-IF exposed or concerned: Get medical advice/attention.
- P310-Immediately call a POISON CENTER/doctor/.
- P330-Rinse mouth.
- MIXTURE LIST-Contains : Tetramethylammoniumhydroxide
RUO – Research Use Only
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