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Nitrourea

HCID 62372
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
556-89-8
Standard SMILES
NC(=O)N[N+](=O)[O-]
InChIKey
CMUOJBJRZUHRMU-UHFFFAOYSA-N
Molecular formula
CH3N3O3
Average molar mass
105.05 g/mol
Monoisotopic mass
105.01744096

Overview

Nitrourea appears as 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.

Names & identifiers

Preferred name
Nitrourea
IUPAC
nitrourea
English name
N-Nitrocarbamide
Molecular formula
CH3N3O3
Molecular weight
105.05

Names & synonyms

NitroureaN-NitrocarbamideUREA, NITRO-1-NitroureaN-NitroureaNitro ureaUrea, N-nitro-UN0147UNII-3UA35787YZ3UA35787YZNITROUREA [MI]EINECS 209-144-0
Show more names
nitro-ure
NSC 14982NSC-14982DTXSID4060311UN-0147RefChem:166154DTXCID1041922209-144-0556-89-8

Database identifiers

CAS
556-89-8
PubChem CID
62372
DTXSID
DTXSID4060311
UNII
3UA35787YZ
EC Number
209-144-0
Nikkaji
J2.658A

Properties

Computed structural propertiesFilling in

XLogP
-0.9
Topological polar surface area
101 Ų
Hydrogen bond donors
2
Hydrogen bond acceptors
3
Rotatable bonds
0
Heavy atoms
7
Formal charge
0
Complexity
92.8

Experimental & physicochemical properties

Physical Description · 1 item

Nitrourea appears as 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.

Physicochemical properties

Melting point
158.5 · 158.5 ºC (DEC.)
Boiling point
197.01 °C · 197.01°C (rough estimate)
Density
1.557 · 1.557±0.06 g/cm3(Predicted)
refractive index
1.4451 · 1.4451 (estimate)
pka
pK (20°) 2.15
color
Crystals or leaflets or prisms from EtOH; orplatelets from EtOH/ligroin
FDA UNII
3 UA35787YZ · 3UA35787YZ
NIST Chemistry Reference
Nitrourea(556-89-8)
EPA Substance Registry System

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Danger

H201 (100%): (Deleted) Explosive; mass explosion hazard [Danger Explosives]

P210, P230, P240, P250, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P321, P330, P332+P317, P337+P317, P362+P364, P370+P380, P372, P373, P401, and P501 (click each P-code to see the statement)

The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Hazard information

DOT LabelExplosive 1.1D
Fire HazardsExcerpt from ERG Guide 112 [Explosives - Division 1.1, 1.2, 1.3 or 1.5]:
Health HazardsExcerpt from ERG Guide 112 [Explosives - Division 1.1, 1.2, 1.3 or 1.5]:
Reactive GroupAmides and Imides
Reactivity AlertsExplosive
Reactivity Profile · 1 item

Explosive mercury or silver salts are rather sensitive to heat and impact, while the pure material is much more insensitive. Organonitrate compounds, such as NITROUREA, 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.

DOT Hazard Classification · 3 items

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationUrea, N-nitro-: ACTIVE
Applications · 2 items

UsesExplosives.

General DescriptionA 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.

Upstream & downstream products

Upstream raw materials

Urea nitrate

Downstream products

4,5-Diaminouracilcyanic acidN-N-Octadecylurea1,1-Diethylurea1,1-Dimethylurea2,4-Dihydroxybenzamide(2-Thiazolin-2-yl)ureadezinamide

Related reactions

53 records
New reaction record
HRID 169495 reaction equation
HRID 169495As reactantTraining data from https://doi.org/10.1039/C8SC04228D (9/10)
HRID 248869 reaction equation
HRID 248869As reactantuspto-grants-1993_05
HRID 359032 reaction equation
HRID 359032As reactantuspto-grants-1991_03
HRID 359033 reaction equation
HRID 359033As reactantuspto-grants-1991_03
HRID 359034 reaction equation
HRID 359034As reactantuspto-grants-1991_03
HRID 359035 reaction equation
HRID 359035As reactantuspto-grants-1991_03
HRID 359036 reaction equation
HRID 359036As reactantuspto-grants-1991_03
HRID 359037 reaction equation
HRID 359037As reactantuspto-grants-1991_03
Page 1 of 7

Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Urea, nitro- (556-89-8)
Symbol(GHS)
1 · GHS01,GHS07
Signal word
Danger
Hazard statements
201 · H201-H302-H312-H315-H319-H332
Precautionary statements
264 · P264-P270-P280-P261-P271-P301+P312-P330-P302+P352-P312-P362+P364-P332+P313-P305+P351+P338-P337+P313-P304+P340-P501
Safety Statements
17 · 17-36/37/39-45
RIDADR
147 · UN 0147
TSCA
TSCA listed
HazardClass
1.1 D · 1.1D

Nitro urea

UN0147

Div 1.1 Explosives (with a mass explosion hazard) (49 eCFR § 173.50)

Air and Water ReactionsHydrolysis occurs in water.
Hazard Classes and CategoriesExpl. 1.1 (100%)

Safety & protection

Fire FightingExcerpt from ERG Guide 112 [Explosives - Division 1.1, 1.2, 1.3 or 1.5]:
First AidExcerpt from ERG Guide 112 [Explosives - Division 1.1, 1.2, 1.3 or 1.5]:
Nonfire Spill ResponseExcerpt from ERG Guide 112 [Explosives - Division 1.1, 1.2, 1.3 or 1.5]:
Isolation and EvacuationExcerpt from ERG Guide 112 [Explosives - Division 1.1, 1.2, 1.3 or 1.5]:
Personal Protective Equipment (PPE)Excerpt from ERG Guide 112 [Explosives - Division 1.1, 1.2, 1.3 or 1.5]:

Safety data

tsca
TSCA listed
ridadr
UN 0147
Signal word
Danger
Symbol(GHS)
GHS01,GHS07
safety_code
17-36/37/39-45
hazard_class
1.1D
Hazard statements
H201-H302-H312-H315-H319-H332
Precautionary statements
P264-P270-P280-P261-P271-P301+P312-P330-P302+P352-P312-P362+P364-P332+P313-P305+P351+P338-P337+P313-P304+P340-P501