24786-78-5

Basic information

• Product Name: hydrazinium thiocyanate
• Synonyms: Hydrazine thiocyanate (1:1); hydrazine, thiocyanate (1:1); Hydrazinium thiocyanate
• CAS NO: 24786-78-5
• Molecular Formula: CHNS*H₄N₂
• Molecular Weight: 91.1355
• Mol File: 24786-78-5.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 313.3°C at 760 mmHg
• Flash Point: 143.3°C
• Vapor Pressure: 0.000501mmHg at 25°C
• CAS DataBase Reference: hydrazinium thiocyanate(CAS DataBase Reference)
• NIST Chemistry Reference: hydrazinium thiocyanate(24786-78-5)
• EPA Substance Registry System: hydrazinium thiocyanate(24786-78-5)

Safety Data

• Hazardous Substances Data: 24786-78-5(Hazardous Substances Data)

Downstream Products

• 1752-30-3 Acetone thiosemicarbazone 
• 79-19-6 thiosemicarbazide 
• 28867-76-7 benzaldehyde benzylidenehydrazone 

Relevant articles and documents

Acetone thiosemicarbazide and preparation method thereof

The invention discloses a preparation method of acetone thiosemicarbazide. The preparation method comprises (1) putting raw materials for preparation into a reactor, (2) heating the raw materials to cause the chemical reaction, (3) when the reaction temperature is increased to 40 to 50 DEG C, carrying out vacuum pumping on the reactor and discharging the produced ammonia gas, (4) cooling the reactor to 30 DEG C and adding acetone into the reactor, (5) carrying out an exothermic reaction process on acetone and thiocyanate, and (6) when the reaction temperature is 50 to 80 DEG C, adding the reaction product into a reflux device to prevent the liquid evaporation so that acetone thiosemicarbazone is obtained. The preparation method has advantages of final product yield higher than 90% and product purity of 99%. The ingredients in the novel raw materials do not corrode the equipment. The by-product ammonia gas can be collected and processed to form ammonium hydroxide for recycling. The preparation method has a high yield and does not produce pressure on equipment and environment.