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Tetramethylammonium hydroxide CAS#：75-59-2
CAS Number: 75-59-2
Chemical Formula: C4H13NO
Appearance: Colorless Liquid
Synonyms:
N,N,N-TRIMETHYLMETHANAMINIUM HYDROXIDE
TETRAMETHYLAMMONIUM HYDROXIDE
TMAH
HS Code: 29239000
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Product Details
Products Description of Tetramethylammonium hydroxide CAS#：75-59-2
Tetramethylammonium hydroxide is a solid in the hydrated form or a colorless liquid with a strong ammonia-like odor. It is soluble in water, and corrosive to metals and tissue.
| Tetramethylammonium hydroxide Chemical Properties |
| Melting point | °C |
| Boiling point | 110 °C |
| density | 0.866 g/mL at 25 °C |
| vapor pressure | 17.5 mm Hg ( 20 °C) |
| refractive index | n |
| Fp | 80 °F |
| storage temp. | Store below +30°C. |
| solubility | Methanol (Sparingly), Water (Slightly) |
| form | Solution |
| color | APHA: ≤10 |
| Odor | strong ammonia-like odor |
| PH | >13 (H2O, 20°C) |
| Water Solubility | Soluble in water. |
| Sensitive | Air Sensitive |
| Merck | 14,9224 |
| BRN | 3558708 |
| Stability: | Stable. Flammable. Incompatible with strong oxidizing agents, strong acids. |
| InChIKey | WGTYBPLFGIVFAS-UHFFFAOYSA-M |
| CAS DataBase Reference | 75-59-2(CAS DataBase Reference) |
| EPA Substance Registry System | Tetramethylammonium hydroxide (75-59-2) |
| Safety Information |
| Hazard Codes | C,T,F,T+,Xn |
| Risk Statements | 24/25-34-20/21/22-39/23/24/25-23/24/25-10-21/22-25-21-11-67-36-52-48/24-27/28-23-35-36/38 |
| Safety Statements | 45-36/37/39-26-16-36/37-28 |
| RIDADR | UN 3286 3/PG 2 |
| WGK Germany | 1 |
| RTECS | PA0875000 |
| F | 4.4-10-34 |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29239000 |
| Hazardous Substances Data | 75-59-2(Hazardous Substances Data) |
Product Application of Tetramethylammonium hydroxide CAS#：75-59-2
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.Tetramethylammonium hydroxide solution (25 wt.% solution in water) may be used as a base for pH adjustment to obtain hexagonal mesoporous aluminophosphate (TAP).
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