Basic information
- Name:
Tetraethylammonium hydroxide
- CAS No.:
77-98-5
- Molecular Structure:
- Formula:
- C8H21NO
- Molecular Weight:
- 147.30
- Deleted CAS:
- 588683-10-7
- Synonyms:
- Ammonium,tetraethyl-, hydroxide (8CI);Ethanaminium, N,N,N-triethyl-, hydroxide (9CI);Tetraethylammonium hydroxide (6CI);Ethanaminium,N,N,N-triethyl-, hydroxide (1:1);
- EINECS:
- 201-073-3
- Density:
- 1.023 g/mL at 25 °C
- Melting Point:
- -98 °C
- Boiling Point:
- 110 °C
- Flash Point:
- 11 °C
- Solubility:
- soluble in water
- Appearance:
- colourless liquid
- Hazard Symbols:
F, 
T, 
N, 
C- Risk Codes:
- 34-51-39/23/24/25-23/24/25-11
- Safety Description:
- 7-16-26-36/37/39-45-61 Details
- Transport Information:
- UN 3286 3/PG 2
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Chemistry
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IUPAC Name: Tetraethylazanium hydroxide
Molecular Formula: C8H21NO
Molecular Weight: 147.26 g/mol
SMILES: [N+](CC)(CC)(CC)CC.[OH-]
InChI: InChI=1/C8H20N.H2O/c1-5-9(6-2,7-3)8-4;/h5-8H2,1-4H3;1H2/q+1;/p-1
EINECS: 201-073-3
Classification Code: Drug / Therapeutic Agent
Product Categories: quarternary ammonium bases; HPLC Ion-Pair Reagents for Acidic Samples; Ammonium Hydroxides (Quaternary); Analytical Chemistry; Ion-Pair Reagents for HPLC; Quaternary Ammonium Compounds
Water Solubility: SOLUBLE
Sensitive: Air Sensitive
Stability: Stable, but absorbs carbon dioxide from the air
Melting Point: -98 °C
Boiling Point: 110 °C
Density: 1.023 g/mL at 25 °C
Flash Point: 11 °C
storage temperature of Tetraethylammonium hydroxide (CAS NO.77-98-5): 2-8 °C
Uses
Tetraethylammonium hydroxide (CAS NO.77-98-5) is used as a phase transfer catalyst, the template agent synthesized by molecular sieve and cleaning agents.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| frog | LDLo | parenteral | 60mg/kg (60mg/kg) | "Structure et Activite Pharmacodyanmique des Medicaments du Systeme Nerveux Vegetatif," Bovet, D., and F. Bovet-Nitti, New York, S. Karger, 1948Vol. -, Pg. 681, 1948. | |
| mouse | LDLo | subcutaneous | 107mg/kg (107mg/kg) | Journal of Pharmacology and Experimental Therapeutics. Vol. 28, Pg. 367, 1926. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Hazard Codes: 
C,
N,
T,
F
Risk Statements: 34-51-39/23/24/25-23/24/25-11
R34:Causes burns.
R51:Toxic to aquatic organisms.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
R39:Danger of very serious irreversible effects.
R11:Highly flammable.
Safety Statements: 7-16-26-36/37/39-45-61
S7:Keep container tightly closed.
S16:Keep away from sources of ignition.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 3286 3/PG 2
WGK Germany: 3
RTECS: KH3150000
F: 9-34
HazardClass: 8
PackingGroup of Tetraethylammonium hydroxide (CAS NO.77-98-5): II
Specification
Tetraethylammonium hydroxide (CAS NO.77-98-5), its Synonyms are Ammonium, tetraethyl-, hydroxide ; Ethanaminium, N,N,N-triethyl-, hydroxide ; Ethanaminium, N,N,N-triethyl-, hydroxide (1:1) . It is colourless liquid.