Triethylammonium acetate

Triethylammonium acetate

Names
IUPAC name Triethylammonium acetate
Other names teaa, triethylamine/acetate buffer
Identifiers
CAS Number	5204-74-0 N
3D model (JSmol)	Interactive image
ChemSpider	144908 Y
ECHA InfoCard	100.023.632
PubChem CID	165295
InChI InChI=1S/C6H15N.C2H4O2/c1-4-7(5-2)6-3;1-2(3)4/h4-6H2,1-3H3;1H3,(H,3,4) Y Key: AVBGNFCMKJOFIN-UHFFFAOYSA-N Y InChI=1/C6H15N.C2H4O2/c1-4-7(5-2)6-3;1-2(3)4/h4-6H2,1-3H3;1H3,(H,3,4) Key: AVBGNFCMKJOFIN-UHFFFAOYAA
SMILES O=C(O)C.N(CC)(CC)CC
Properties
Chemical formula	(CH3CH2)3NHOCOCH3
Molar mass	161.24 g/mol
Boiling point	164.5 °C (328.1 °F; 437.6 K)
Solubility in water	Soluble
Hazards
Main hazards	Corrosive, harmful
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Triethylammonium acetate is a volatile buffering agent, which, when diluted in water, maintains pH at about 7. When mixed with other components, such as methanol or acetonitrile other pHs may be attained. It is used in the purification of DNA, for instance.

It is prepared from equimolar quantities of triethylamine and acetic acid. After the reaction requiring buffering is done, this buffer can easily be removed by freeze drying or some other evaporative method.

In a pure state, it is liquid at room temperature and it has a yellowish color. This compound tends to get oxidized during heating (observed as a darkening of the solution); thus, it is recommended to do so under a nitrogen blanket or purge.