Tetramethylammonium hydroxide pentahydrate
SIGMA/T7505 - ≥97%
Synonym: TMAH
CAS Number: 10424-65-4
Empirical Formula (Hill Notation): C4H13NO · 5H2O
Molecular Weight: 181.23
EC Number: 200-882-9
MDL Number: MFCD00149566
Linear Formula: (CH3)4N(OH) · 5H2O
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: T7505-1KG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: T7505-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: T7505-5G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: T7505-25G
| assay | ≥97% |
| autoignition temp. | 878 °F |
| description | non-ionic |
| expl. lim. | 36 % |
| InChI | 1S/C4H12N.6H2O/c1-5(2,3)4 |
| InChI key | MYXKPFMQWULLOH-UHFFFAOYSA |
| mol wt | 181.23 g/mol |
| mp | 67-70 °C (lit.) |
| Quality Level | 200  |
| SMILES string | O.O.O.O.O.[OH-].C[N+](C)( |
| vapor density | 1.1 (vs air) |
| Application: | Tetramethylammonium hydroxide pentahydrate has been used in a study to assess strains of Pseudomnas species by a single-step gas chromatographic characterization procedure. It has also been used in a study to investigate solid-state metal hydride batteries nickel oxyhydroxide-metal hydride and manganese dioxide-metal hydride. |
| Application: | Tetramethylammonium hydroxide pentahydrate has been used in the synthesis of silicalite-1 seed crystals. |
| General description: | Tetramethylammonium hydroxide (TMAOH) is an ion-pairing agent that is usually used in analytical chemistry. It is used in the analysis of marine compounds by thin-layer chromatography-pyrolysis- |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 5, 25, 100 g in glass bottle |
| Symbol |     GHS05,GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H300 + H310 - H314 - H370 - H372 - H411 |
| Precautionary statements | P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | T |
| Risk Statements | 24/25-34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3423 8 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥97% |
| mp | 67-70 °C (lit.) |
| UNSPSC | 12161900 |