| Chinese alias | Piperazine anhydrous; Diethylene diamine; 1,4-Diazacyclohexane; piperazinediium | 
| Appearance | 
			 Colorless crystal with saline taste and ammonia odor.  | 
		
| Structural formula | ![]()  | 
		
| CAS NO. | 110-85-0 | 
| EINECS | 203-808-3 | 
| Molecular formula | 
			 C4H10N2 
			 | 
		
| Molecular Weight | 86.14 | 
| Melting point (℃) | 109.6 | 
| Boiling range | 148.5 | 
| Uses | 
			 Pharmaceutical intermediate, mainly used in the production of piperazine phosphate, piperazine citrate, bucinnazine, and rifampicin  | 
		
| Physicochemical properties | 
			 Saturated vapor pressure (kPa): 30.3/111℃  | 
		
| Hazards | 
			 Health hazard: Contact, inhalation or percutaneous absorption can cause weakness, blurred vision, ataxia, etc.  | 
		
| First aid measures | 
			 Skin contact: Take off the polluted clothing immediately, rinse with plenty of flow and clear water for at least 15 minutes, seek medical advice.  | 
		
| Fire-fighting measures | 
			 Harmful combustion products: Carbon monoxide, carbon dioxide and nitric oxide.  | 
		
| ACCIDENTAL | 
			 Emergency treatment: The contaminated areas should be isolated, cut off the source of ignition. The emergency treatment personnel shall wear dust mark, acid and alkali resistant clothes.  | 
		
| Operation and storage | 
			 Operation: The operator should be specially trained, follow the operating instruction. The operator should wear self-inhalation filter type dust respirator, chemical safety glasses, rubber acid and  | 
		
  
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