Chemical Property of Cyanoguanidine
Chemical Property:
- Appearance/Colour:white powder
- Vapor Pressure:0.068mmHg at 25°C
- Melting Point:208-211 °C(lit.)
- Refractive Index:1.6260 (estimate)
- Boiling Point:229.8 °C at 760 mmHg
- PKA:0.73±0.70(Predicted)
- Flash Point:92.8 °C
- PSA：85.69000
- Density:1.42 g/cm3
- LogP:0.14148
- Storage Temp.:2-8°C
- Solubility.:H2O: 0.1 g/mL, clear
- Water Solubility.:32 g/L (20 ºC)
- XLogP3:-1.2
- Hydrogen Bond Donor Count:2
- Hydrogen Bond Acceptor Count:2
- Rotatable Bond Count:0
- Exact Mass:84.043596145
- Heavy Atom Count:6
- Complexity:100
- Purity/Quality:
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99.5%min and 99.8%min *data from raw suppliers
Cyanoguanidine *data from reagent suppliers
Safty Information:
- Pictogram(s):
Xn, 
T
- Hazard Codes:Xn,T
- Statements:
20/21/22-43-36/38-25
- Safety Statements:
22-24/25-45-36-3
- MSDS Files:
-
SDS file from LookChem
Useful:
- Chemical Classes:Nitrogen Compounds -> Other Nitrogen Compounds
- Canonical SMILES:C(#N)N=C(N)N
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Chemical Composition and Structure
Cyanoguanidine is a guanidine derivative in which one of the amino hydrogens of guanidine is substituted by a cyano group (-CN). It is composed of carbon, nitrogen, and hydrogen atoms.
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Production Methods
Cyanoguanidine can be produced synthetically by treating cyanamide with a base.
Cyanoguanidine can be produced industrially by reacting a metal oxide with a source of carbon to produce a finely divided metal carbide, which is then immediately reacted with nitrogen gas to form a metal cyanamide. This metal cyanamide can be further decomposed into cyanoguanidine and other compounds by reacting with water. Energy released from the reaction can be utilized, and metal hydroxide can be recovered for recycling.
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Uses
Manufacturing:
Cyanoguanidine is utilized in the manufacture of various products, including fertilizers, pharmaceuticals, explosives, oil well drilling muds, dyestuffs, and flame retardants.
Chemical Modification:
Cyanoguanidine is used for chemical modification of chitosan to improve its chemical stability and adsorption capacity for food dyes.
Metal Ion Binding:
Cyanoguanidine exhibits strong affinity for metal ions, particularly mercury (Hg(II)), making it useful for selective adsorption of heavy metals from aqueous solutions.
Ligand in Coordination Chemistry:
Cyanoguanidine acts as a ligand binding to metal ions via the nitrile nitrogen and the imine nitrogen, forming coordination complexes.
Impurity in Synthesis:
Cyanoguanidine can be an impurity in the synthesis of metformin, a medication for diabetes. Quantitation of cyanoguanidine in raw materials and pharmaceutical products is necessary for quality control and stability of metformin.
