Tetramethylammonium chloride is one of the simplest quaternary ammonium salts, with four methyl groups tetrahedrally attached to the central N. The chemical formula (CH3)4N+Cl− is often abbreviated further as Me4N+Cl−. It is a hygroscopic colourless solid that is soluble in water and polar organic solvents. Tetramethylammonium chloride is a major industrial chemical, being used in such processes as hydrofracking. In the laboratory, it has fewer synthetic chemical applications than quaternary ammonium salts containing longer N-alkyl substituents, which are used extensively as phase-transfer catalysts.

CAS：75-57-0
中文别名：氯化四甲铵;氯化四甲基铵;四甲氯化;
英文别名：tetramethyl-ammonium chloride;tetramethyl-ammoniuchloride;TMA;TMACL;50g;Tetramethylazanium chloride;tetrametylammonium chloride;tetraminechloride;Methanaminium, N,N,N-trimethyl-, chloride;anhydrous tetramethylammonium chloride;TMAC;usafan-8;Tetramethylammoniumchlorid;
分子式：C4H12ClN
分子量：109.598
精确质量：109.066
Psa：0.0
Logp：-2.6736

EINECS号：200-880-8

外观与性状：白色晶体
密度：1,17 g/cm3
熔点：>300°C(lit.)
水溶解性：>60 g/100 mL (20 ºC)
稳定性：Stable. Incompatible with strong oxidizing agents, water. Hygroscopic.
储存条件：Store at RT.

RTECS号：BS7700000
安全说明：S26-S36/37-S45-S37/39-S28A-S28
危险类别码：R25; R36/37/38
WGK Germany：1
危险品运输编码：UN 2811 6.1/PG 2
海关编码：29239000
危险类别：6.1
包装等级：II
危险品标志：T
危险标志：GHS06, GHS08, GHS09
信号词：Danger
危险性防范说明：P260; P273; P280; P301 + P310 + P330; P302 + P352 + P312; P308 + P311
危险性描述：H301 + H311; H315; H370; H411

生产方法
1.甲酸、甲醛与氨水反应生成三甲胺甲酸盐: 三甲胺甲酸盐与氢氧化钠作用放出的三甲胺与氯甲烷作用生成四甲基氯化铵: 催化剂，乳化剂，消毒剂，杀菌剂，抗静电剂等。
用途
催化剂，乳化剂，消毒剂，杀菌剂，抗静电剂等。