Benzenesulfonic Acid Typical Properties

Benzenesulfonic Acid Application

1. Used in the electroplating industry.

2.Used for making phenol by alkali fusion, and also for making resorcinol, etc. It is often used as a catalyst in esterification and dehydration reactions.

Benzenesulfonic Acid Packaging and Shipping:

 Packing:  50KG/Drum

Delivery: Class 8 dangerous goods

Benzenesulfonic Acid Methanesulfonic acid Storage

Store in a cool, dry, well-ventilated place

Benzenesulfonic Acid preparation

It is obtained by sulfonation with benzene as raw material. Add 2400L of 93% sulfuric acid into the sulfonation pot, and drive benzene into the evaporator at a flow rate of 2500-3000L/h. After evaporation and overheating, it becomes superheated benzene vapor with a temperature of 150℃ or higher, and reacts in the sulfuric acid layer through a bubbler. , The temperature is around 170℃, and finally the free acid is controlled at 4-5%. The reaction is completed after about 10 hours. The unreacted benzene vapor and the generated water vapor are condensed and separated, and the acidic benzene is neutralized by liquid caustic soda and dehydrated by salt, and then recycled. The benzene sulfonic acid containing benzene is then removed by the vacuum debenzene device to remove residual benzene. The sulfonation yield is 96.5%.

Benzene sulfonic acid is neutralized with sodium sulfite or sodium hydroxide to obtain sodium benzene sulfonate. The neutralization yield is 99%. Raw material consumption quota: benzene 600kg/t, oleum 750kg/t.