Tetraethylammonium chloride (TEAC) is a quaternary ammonium compound with the chemical formula C8H20N+Cl−, sometimes written as Et4N+Cl−. In appearance, it is a hygroscopic, colorless, crystalline solid. It has been used as the source of tetraethylammonium ions in pharmacological and physiological studies, but is also used in organic chemical synthesis.

CAS：56-34-8
中文别名：氯化四乙基铵;氯化四乙胺,TEAC;氯化四乙胺;N,N,N-三乙基乙铵氯化物;氯化四乙铵;
英文别名：Tetraethyl ammonium chloride;Tetraethylammonium chloride;Tetraethylammonium Chloride;
分子式：C8H20ClN
分子量：165.704
精确质量：165.128
Psa：0.0
Logp：-1.1132

UNII：8B82Z83XNN

外观与性状：白色结晶粉末
密度：1.08
熔点：39°C
稳定性：Stable. Incompatible with strong oxidizing agents. Protect from moisture.
储存条件：Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.

RTECS号：BS6125000
安全说明：S26-S36-S37/39
WGK Germany：3
危险类别码：R36/37/38
海关编码：29239000
危险品标志：Xi

生产方法
将10%四乙基氢氧化铵水溶液用盐酸中和,得到四乙基氯化铵溶液,将此水溶液蒸发至干,残渣在乙腈丙酮混合溶剂中重结晶,得到的氯化四乙基铵产品在五氧化二磷存在下进行真空干燥。 用作表面活性剂，催化剂，乳化剂，消毒剂，杀菌剂，抗静电剂等。
用途
用作表面活性剂，催化剂，乳化剂，消毒剂，杀菌剂，抗静电剂等。