Tetrabutylammonium hydroxide
- CAS NO.：2052-49-5
- Empirical Formula: C16H37NO
- Molecular Weight: 259.47
- MDL number: MFCD00009425
- EINECS: 218-147-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-01-05 16:34:11
What is Tetrabutylammonium hydroxide?
Chemical properties
Aqueous solution.
The Uses of Tetrabutylammonium hydroxide
TBAOH may be used as an ion-pairing reagent in mobile phase preparation for reverse phase ion-pair high performance liquid chromatography during chromium (III) and chromium (VI) determination.
Preparation
Tetrabutylammonium hydroxide was prepared by the ion exchange between gel type strong basic anion exchange resin(OH-) and aqueous solution of tetrabutylammonium bromide.
General Description
The product is 54.0-56.0% solution of tetrabutylammonium hydroxide in H2O. Tetrabutylammonium hydroxide has been synthesized from tetrabutylammonium iodide. TBAOH dissolved in anhydrous isopropyl alcohol is widely employed as titrant for weak acids.
Flammability and Explosibility
Flammable
Properties of Tetrabutylammonium hydroxide
| Melting point: | 27-30 °C(lit.) |
| Boiling point: | 100 °C |
| Density | 0.995 |
| vapor density | 1 (vs air) |
| vapor pressure | 2.3 kPa (@ 20°C) |
| refractive index | 1.4 |
| Flash point: | 7°C |
| storage temp. | Store below +30°C. |
| solubility | Miscible with organic solvents. |
| form | Solution |
| Specific Gravity | 0.8586 |
| color | APHA: ≤30 |
| PH Range | 14 |
| Odor | Odorless |
| Water Solubility | Soluble in water, methanol. |
| Sensitive | Air Sensitive/Hygroscopic |
| BRN | 3571228 |
| Exposure limits | ACGIH: TWA 200 ppm; STEL 250 ppm (Skin) OSHA: TWA 200 ppm(260 mg/m3) NIOSH: IDLH 6000 ppm; TWA 200 ppm(260 mg/m3); STEL 250 ppm(325 mg/m3) |
| Stability: | Volatile |
| CAS DataBase Reference | 2052-49-5(CAS DataBase Reference) |
| EPA Substance Registry System | 1-Butanaminium, N,N,N-tributyl-, hydroxide (2052-49-5) |
Safety information for Tetrabutylammonium hydroxide
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H317:Sensitisation, Skin |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/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. Continuerinsing. |
Computed Descriptors for Tetrabutylammonium hydroxide
| InChIKey | VDZOOKBUILJEDG-UHFFFAOYSA-M |
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