CYANOGEN

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Products Intro: Product Name:CYANOGEN
CAS:460-19-5
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Products Intro: CAS:460-19-5
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Products Intro: Product Name:CYANOGEN
CAS:460-19-5
Purity:>98% HPLC Package:100g;500g;1kg;10kg
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CYANOGEN Basic information
Uses Preparation Hazard
Product Name:CYANOGEN
Synonyms:OXALONITRILE;CYANOGEN;dicyan;cyanogene;dicyanogene;oxalonitrile cyanogen;Carbon nitride (C2N2);Cyanogen (C2N2)
CAS:460-19-5
MF:CN *
MW:26.0174
EINECS:207-306-5
Product Categories:Organics
Mol File:460-19-5.mol
CYANOGEN Structure
CYANOGEN Chemical Properties
Melting point -27.9° (also reported as -34.4°)
Boiling point bp -21.17°
density d4-21.17 0.9537
refractive index 1.3780 (estimate)
form colorless gas
Water Solubility 1.1–1.3g/100g H2O; 26 g/100g alcohol; 5g/100g ether [CIC73]
CAS DataBase Reference460-19-5
Safety Information
Hazard Codes F,T,N
Risk Statements 11-23-50/53
Safety Statements 23-45-60-61
RIDADR 1026
HazardClass 2.3
MSDS Information
CYANOGEN Usage And Synthesis
UsesCyanogen has limited applications, the most important of which are in organic synthesis. Also, it is used in welding metals; as a fumigant; and in some rocket propellants.
PreparationCyanogen is prepared by the slow addition of potassium cyanide solution to a solution of copper(II) salt, such as copper(II) sulfate or chloride:
2Cu2+ + 4CN¯ → 2CuCN + (CN)2
Cyanogen also may be prepared by the reaction of mercuric cyanide with mercuric chloride. Dry cyanogen gas may be obtained by this process:
Hg(CN)2 + HgCl2 → Hg2Cl2 + (CN)2
yanogen may be prepared by oxidation of hydrogen cyanide with oxygen, nitrogen dioxide, chlorine, or another suitable oxidizing agent, using various catalysts:
4HCN + O2 → 2(CN)2 + H2O
2HCN + NO2 →(CN)2 + NO + H2O
2HCN + Cl2 →(CN)2 + 2HCl
HazardCyanogen is a highly flammable gas. It forms explosive mixtures with air, LEL 6.6%, UEL 32% by volume. Reactions with oxygen, ozone, fluorine or other strong oxidizing agents can be explosive. Also, it can explode when exposed to spark, flame or heat.
Cyanogen is moderately toxic by inhalation. Exposure causes irritation of the eyes, nose and respiratory tract. A 10-minute exposure to about 10 ppm of the gas can manifest these irritant action in humans.
LC50 (rat): 350 ppm in 1 hour.
Chemical PropertiesCyanogen is a colorless, flammable, com- pressed liquefied gas at room temperature. At deadly levels only, it has a pungent, almond-like odor.
DefinitionChEBI: A dinitrile that is ethane substituted by two cyano groups.
General DescriptionA colorless gas with an odor of almonds. Freezes at -28°C and boils at -20.7°C. Shipped as a liquid confined under its vapor pressure. The gas is heavier than air and a flame can travel back to the source of leak very easily. Prolonged exposure to fire or intense heat may cause the containers to violently rupture and rocket. Used to make other chemicals, as a fumigant, and as a rocket propellant.
Air & Water ReactionsHighly flammable. Soluble in water and slowly decomposed by water to oxalic acid and ammonia.
Reactivity ProfileColorless, flammable, highly toxic gas. CYANOGEN can react explosively with strong oxidants (dichlorine oxide, fluorene, oxygen, ozone). When heated to decomposition or on contact with acids, acid fumes, water or steam CYANOGEN will react to produce deadly hydrogen cyanide gas and oxides of nitrogen [Sax, 9th ed., 1996, p. 945].
Health HazardVapor irritates eyes and causes giddiness, headache, fatigue, and nausea if inhaled.
Safety Profile: A poison by subcutaneous and possibly other routes. Moderately toxic by inhalation. Human systemic effects by inhalation: damage to the olfactory nerves and irritation of the conjunctiva. A systemic irritant by inhalation and subcutaneous routes. A human eyeirritant. Very dangerous fire hazard when exposed to heat, flames (sparks), or oxidizers. To fight fire, stop flow of gas. Potentially explosive reaction with powerful oxidants (e.g., dichlorine oxide, fluorine, oxygen, ozone). When heated to decomposition or on contact with acid, acid fumes, water, or steam will react to produce highly toxic fumes of NOx and CN-. See also other cyanogen entries and CYANIDE.
Potential ExposureCyanogen is currently used as an intermediate in organic syntheses; at one time, it was used in poison gas warfare.
First aidIf this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, includ- ing resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medi- cal attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is advised for 24 to 48 hours. If frost- bite has occurred, seek medical attention immediately; do NOT rub the affected areas or flush them with water. In order to prevent further tissue damage, do NOT attempt to remove frozen clothing from frostbitten areas. If frostbite has NOT occurred, immediately and thoroughly wash con- taminated skin with soap and water.
ShippingUN1026 Cyanogen, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 2.1-Flammable gas, Inhalation Hazard Zone B. Cylinders must be transported in a secure upright position, in a well-ventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner.
IncompatibilitiesChemically unstable in rising tempera- tures. May form explosive mixture with air. Explosive reac- tion with strong oxidizers (e.g., dichlorine oxide, fluorine). Forms toxic gases on contact with acids, including hydro- gen cyanide. Slowly hydrolyzed in water to form hydrogen cyanide, oxalic acid, and ammonia.
Waste DisposalReturn refillable compressed gas cylinders to supplier. Incineration; oxides, or nitrogen are removed from the effluent gas by scrubbers and/or ther- mal devices.
CYANOGEN Preparation Products And Raw materials
Tag:CYANOGEN(460-19-5) Related Product Information
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