15973-99-6

Basic information

• Product Name: di(N-nitroso)-perhydropyrimidine
• Synonyms: di(N-nitroso)-perhydropyrimidine
• CAS NO: 15973-99-6
• Molecular Formula: C₄H₈N₄O₂
• Molecular Weight: 144.16
• Mol File: 15973-99-6.mol
• Article Data: 3

Chemical Properties

• Melting Point: 62°C
• Boiling Point: 262.72°C (rough estimate)
• Flash Point: 199.4°C
• Appearance: /
• Density: 1.4165 (rough estimate)
• Vapor Pressure: 1.96E-06mmHg at 25°C
• Refractive Index: 1.8500 (estimate)
• CAS DataBase Reference: di(N-nitroso)-perhydropyrimidine(CAS DataBase Reference)
• NIST Chemistry Reference: di(N-nitroso)-perhydropyrimidine(15973-99-6)
• EPA Substance Registry System: di(N-nitroso)-perhydropyrimidine(15973-99-6)

Safety Data

• Hazardous Substances Data: 15973-99-6(Hazardous Substances Data)

Usage

InChI:InChI=1/C4H8N4O2/c9-5-7-2-1-3-8(4-7)6-10/h1-4H2

Upstream product

• 50-00-0 formaldehyd 
• 109-76-2 Trimethylenediamine 
• 5754-89-2 1,3-dinitro-hexahydro-pyrimidine 

Downstream Products

• 93764-71-7 2-hydroxybenzyl-1,3-dinitrosohexahydropyrimidine 
• 5754-89-2 1,3-dinitro-hexahydro-pyrimidine 
• 93764-74-0 2-benzyl-1,3-dinitrosohexahydropyrimidine 

Relevant articles and documents

Synthesis of 14C labelled compounds. I. Synthesis of 2 (14C) dinitrosohexahydropyrimidine

-

Mechanisms of Nitramine Thermolysis

The thermal decomposition of a number of nitramines was studied in dilute solution and in the melt.The nitramines included acyclic mononitramines , cyclic mononitramines , cyclic dinitramines , and 1,3,5-trinitro-1,3,5-triazocyclohexane (RDX), octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), hexanitrohexaazaisowurtzitane (HNIW), and 1,3,3-trinitroazetidine (TNAZ).For the acyclic and cyclic mono- and dinitramines, the corresponding nitrosamines were the only or major condensed-phase product.Kinetics and activation parameters were determined for the thermolysis of dilute solutions (0.01-1.0 wtpercent) over the range 200-300 deg C.The thermolyses were found to be first-order with the rate constants unaffected by the use of deuterated solvent.As the nitramines became more complex than dimethylnitramine (DMN), the rate of decomposition increased and the product distribution became more complex.As the length of the aliphatic chain increased (DMN DEN DPN), the rate of thermolysis increased, yet nitrosamine remained the only observed condensed-phase product.When a secondary carbon was attached to the N-nitramine (DIPN) rather than the primary (DPN), the rate of decomposition increased and a new condensed-phase product was observed.Among the cyclic nitramines, the rate of decomposition increased as the number of NNO2 groups increased (NPIP pDNP; NPyr DNI; mDMP RDX).The position of the nitramine groups affected the decomposition: meta NNO2 groups (mDNP) decomposed faster than para (pDNP).Ring strain decreased stability: mDNP DNI; HMX RDX.In complex nitramines, the increase in decomposition rate, the appearance of new products, and the change in the relative importance of nitrosamine and of N2 and N2O are attributed to new decomposition routes available to them.However, since complex nitramines (e.g.RDX) maintain first-order kinetics and since most have activation energies in the range of 40-50 kcal/mol, it is belived that the triggering mechanism remains N-NO2 homolysis.Intramolecular hydrogen transfer is also considered an important mode of nitramine decomposition.