Tetrapropylammonium hydroxide

Synonym(s):TPAOH solution

CAS NO.：4499-86-9
Empirical Formula: C12H29NO
Molecular Weight: 203.37
MDL number: MFCD00009360
EINECS: 224-800-6
SAFETY DATA SHEET (SDS)
Update Date: 2025-08-08 17:45:00

Tetrapropylammonium hydroxide Structural

What is Tetrapropylammonium hydroxide?

Chemical properties

clear colorless solution

The Uses of Tetrapropylammonium hydroxide

Tetra-n-propylammonium hydroxide is used as an intermediate, ion exchange agent, surface-active agent and solvent. Further, it is used as an antistatic agent, detergent sanitizers, softener for textiles and paper products, emulsifying agents and pigment dispersers. It finds application as curing accelerators. In addition to this, it acts as a phase transfer catalyst in organic synthesis to enhance the reaction rate.

General Description

Tetrapropylammonium hydroxide, a quaternary ammonium compound, is mainly used as a structure directing agent for the preparation of molecular sieves and zeolites.

Properties of Tetrapropylammonium hydroxide

Boiling point:	100-102 °C
Density	1.00 g/mL at 20 °C
refractive index	n20/D 1.370
Flash point:	102°C
storage temp.	Store below +30°C.
solubility	Miscible with strong electrolytes.
form	Liquid
color	Clear colorless
Specific Gravity	1.012
PH Range	14
PH	>7 (H2O, 20°C) (undiluted)
Water Solubility	Miscible in water
Sensitive	Air Sensitive
BRN	4207983
CAS DataBase Reference	4499-86-9(CAS DataBase Reference)
EPA Substance Registry System	1-Propanaminium, N,N,N-tripropyl-, hydroxide (4499-86-9)

Safety information for Tetrapropylammonium hydroxide

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05
GHS Hazard Statements	H314:Skin corrosion/irritation
Precautionary Statement Codes	P280:Wear protective gloves/protective clothing/eye protection/face protection. P310:Immediately call a POISON CENTER or doctor/physician. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.