20837-86-9

Basic information

• Product Name: LEAD CYANAMIDE
• Synonyms: Cyanamide,lead(2+)salt(1:1);cyanamide,lead(2++)salt(1:1);LEAD CYANAMIDE;lead cyanamidate;LEAD(II) CYANAMIDE, 95%;Cyanamide, lead salt;Cyanamide,leadsalt;Lead-2-cyanamide
• CAS NO: 20837-86-9
• Molecular Formula: CN₂*Pb
• Molecular Weight: 247.22
• EINECS: 244-073-9
• Mol File: 20837-86-9.mol
• Article Data: 4

Chemical Properties

• Melting Point: >250°C
• Boiling Point: 258.5°Cat760mmHg
• Flash Point: 1.2°C
• Appearance: /
• Density: 6,6 g/cm3
• CAS DataBase Reference: LEAD CYANAMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: LEAD CYANAMIDE(20837-86-9)
• EPA Substance Registry System: LEAD CYANAMIDE(20837-86-9)

Safety Data

• Hazard Codes: T,N
• Statements: 20/22-33-50/53-61-62
• Safety Statements: 45-53-61-60
• RIDADR: 2811
• TSCA: Yes
• Hazardous Substances Data: 20837-86-9(Hazardous Substances Data)

Usage

General Description

Lead cyanamide is an inorganic compound with the chemical formula Pb(CN2)2. It is a white to off-white crystalline powder that is insoluble in water. Lead cyanamide is used in the production of lead-based materials, such as lead metal, lead oxides, and lead salts. It is also utilized as a catalyst in organic synthesis reactions. Lead cyanamide is a highly toxic substance and exposure to it can cause severe health effects, such as damage to the central nervous system, kidneys, and reproductive system. Due to its toxicity, its use has become increasingly restricted and regulated in many countries.

Upstream product

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Downstream Products

• 19824-01-2 N-cyano-N'-cyclohexyl-N''-(2-morpholin-4-yl-ethyl)-guanidine 
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• 116707-87-0 N''-cyano-N-phenyl-N'-<2-<3-pyridylmethylthio>ethyl>guanidine 
• 116707-86-9 N''-cyano-N-phenyl-N'-<2-<2-pyridylmethylthio>ethyl>guanidine 
• 460-19-5 ethanedinitrile 
• 270574-63-5 cimetidine 
• 113-00-8 guanidine nitrate 
• 127099-85-8 N-Cyanoguanidine 
• 7727-37-9 nitrogen 

Relevant articles and documents

Metathetic synthesis of lead cyanamide as a p-type semiconductor

Lead cyanamide PbNCN was synthesized by solid-state metathesis between PbCl2 and Na2NCN in a 1?:?1 molar ratio, and its structure was confirmed from Rietveldrefinement of X-ray data. Electronic-structure calculations of HSE06 density-functional type revealPbNCN to be an indirect semiconductor with a band gap of 2.4 eV, in remarkable quantitative agreement with the measured value. Mott-Schottky experiments demonstrate PbNCN to be a p-type semiconductor with a flat-band potential of 2.3 eV vs. the reversible hydrogen electrode (RHE) which is commonly used to estimate the value of the valence band edge position. Moreover, thin films of powderous PbNCN were assembled into a photoelectrode for photoelectrochemical water splitting. On the example of p-type PbNCN, this study provides the first experimental evidence that MNCN compounds can be applied as photocathodes for reductive reactions in photoelectrochemical cells.

Nonaqueous synthesis of metal cyanamide semiconductor nanocrystals for photocatalytic water oxidation

Herein, we report nonaqueous synthesis of metal cyanamide semiconductor nanocrystals, including Ag2NCN nanorods (NRs), ZnNCN NRs and PbNCN nanoparticles. The as-prepared Ag2NCN NRs with a band gap of 2.35 eV are applied as photocatalysts for water oxidation. Their oxygen evolution rate (280.7 μmol h-1 g-1) is much higher than that of Ag2NCN microcrystals (24.0 μmol h-1 g-1).