86880

Tetrabutylammonium hydroxide solution

technical, ~40% in H₂O (~1.5 M)

• Synonym(s): N,N,N-Tributyl-1-butanaminium hydroxide, TBAH 40, Tetra-n-butylammonium hydroxide
• Linear Formula: (CH₃CH₂CH₂CH₂)₄N(OH)
• CAS Number: 2052-49-5
• Molecular Weight: 259.47
• Beilstein/REAXYS Number: 3571228
• MDL number: MFCD00009425
• UNSPSC Code: 12352100
• PubChem Substance ID: 329769336
• NACRES: NA.21

Properties

• grade: technical
• Quality Level: 200
• form: liquid
• concentration: ~40% in H₂O (~1.5 M)
• impurities: ≤3% halides (as bromide)
• density: 0.995 g/cm³
• anion traces: sulfate (SO₄^2-): ≤3000 mg/kg
• SMILES string: [OH-].CCCC[N+](CCCC)(CCCC)CCCC
• InChI: 1S/C16H36N.H2O/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;/h5-16H2,1-4H3;1H2/q+1;/p-1
• InChI key: VDZOOKBUILJEDG-UHFFFAOYSA-M

Description

General description

The product is ~40% 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.

Application

Tetrabutylammonium hydroxide solution (TBAOH) may be used in the following studies:

• For the dissolution of 10wt% cellulose under room temperature conditions.
• As a catalyst during the synthesis of 1,2,4-oxadiazoles.
• Preparation of TBAOH salts of fatty acids.

Caution

may crystallize; can be redissolved on heating to 40°C

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H314
• pcodes: P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363 - P405
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1
• Storage Class: 8A - Combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter