A7636212
Tetramethylammonium hydroxide solution , AR, 25%methanol solution , 75-59-2
Synonym(s):
TMAH solution
CAS NO.：75-59-2
Empirical Formula: C4H13NO
Molecular Weight: 91.15
MDL number: MFCD00008280
EINECS: 200-882-9
Update time: 2022-07-08
PRODUCT 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 |
| Flash point: | 80 °F |
| storage temp. | Store below +30°C. |
| solubility | Methanol (Sparingly), Water (Slightly) |
| form | Solution |
| color | APHA: ≤10 |
| PH | >13 (H2O, 20°C) |
| Odor | strong ammonia-like odor |
| 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 |
Description and Uses
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 solution (25 wt.% solution in water) may be used as a base for pH adjustment to obtain hexagonal mesoporous aluminophosphate (TAP).
Safety
| Symbol(GHS) |     GHS02,GHS05,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H226-H300+H310-H314-H331-H370-H372-H412 |
| Precautionary statements | P210-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| 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 |
