N-Nitrocarbamide Property

Melting point:

158.5 ºC (DEC.)

Boiling point:

197.01°C (rough estimate)

Density 

1.557±0.06 g/cm3(Predicted)

refractive index 

1.4451 (estimate)

pka

pK (20°) 2.15

color 

Crystals or leaflets or prisms from EtOH; orplatelets from EtOH/ligroin

NIST Chemistry Reference

Nitrourea(556-89-8)

EPA Substance Registry System

Urea, nitro- (556-89-8)

Safety

Safety Statements 

17-36/37/39-45

RIDADR 

147

HazardClass 

1.1D

PackingGroup 

II

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H201Explosive; mass explosion hazard

H302Harmful if swallowed

H312Harmful in contact with skin

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P230Keep wetted with …

P240Ground/bond container and receiving equipment.

P250Do not subject to grinding/shock/…/friction.

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P322Specific measures (see …on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P363Wash contaminated clothing before reuse.

P370+P380in case of fire: Evacuate area.

P372Explosion risk in case of fire.

P373DO NOT fight fire when fire reaches explosives.

P401Store …

P501Dispose of contents/container to..…

N-Nitrocarbamide Chemical Properties,Usage,Production

Chemical Properties

White, crystalline powder.Slightly soluble in water; soluble in alcohol, acetone, and acetic acid.

Uses

Explosives.

General Description

A colorless to white crystalline powder solid. Mildly sensitive to heat and shock. An extremely powerful explosive. Decomposes to emit toxic nitrogen oxide fumes. May explode under exposure to intense heat or fire. Primary hazard is blast of an instantaneous explosion, not flying projectiles or fragments.

Air & Water Reactions

Hydrolysis occurs in water.

Reactivity Profile

Explosive mercury or silver salts are rather sensitive to heat and impact, while the pure material is much more insensitive. Organonitrate compounds, such as N-Nitrocarbamide, range from slight to strong oxidizing agents. If mixed with reducing agents, including hydrides, sulfides and nitrides, they may begin a vigorous reaction that culminates in a detonation. Nitroalkanes are milder oxidizing agents, but still react violently with reducing agents at higher temperature and pressures. Nitroalkanes react with inorganic bases to form explosive salts. The presence of metal oxides increases the thermal sensitivity of nitroalkanes.

Hazard

Severe explosion risk.

Health Hazard

Fire may produce irritating, corrosive and/or toxic gases.

Fire Hazard

MAY EXPLODE AND THROW FRAGMENTS 1600 meters (1 MILE) OR MORE IF FIRE REACHES CARGO.

Safety Profile

A very dangerous fire hazard when exposed to heat or flame. A severe explosion hazard when shocked or exposed to heat. Can react vigorously with oxidizing materials. It is a lugh explosive. Incompatible with mercuric and silver salts. When heated to decomposition it emits highly toxic fumes of NOx. See also EXPLOSIVES, HIGH; and NITRATES.

Purification Methods

Crystallise it from EtOH/pet ether. Dry it in vacuo ~50o. [Ingersoll & Arenendt Org Synth Coll Vol I 417 1941.]