Utente:Grasso Luigi/sanbox1/Dinitrometano
| Dinitrometano | |
|---|---|
 | |
  | |
| Nome IUPAC | |
| [1] | |
| Caratteristiche generali | |
| Formula bruta o molecolare | CH2N2O4 |
| Massa molecolare (u) | 106.037 [3] |
| Numero CAS | Immagine_3D |
| PubChem | 61172 |
| SMILES | C([N+](=O)[O-])[N+](=O)[O-] |
| Proprietà chimico-fisiche | |
| Solubilità in acqua | 0.4% (20°C)[4] |
| Temperatura di ebollizione | 39°C - 40°C (P=2 mmHg)[5] |
| Tensione di vapore (Pa) a 295 K | 19 mmHg (20°C)[4] |
| Dati farmacologici | |
| Categoria farmacoterapeutica | antibiotici, tetracicline |
| Modalità di somministrazione | orale |
| Indicazioni di sicurezza | |
| Simboli di rischio chimico | |
 
| |
| attenzione | |
| Frasi H | --- |
| Consigli P | ---[6] |
Dinitromethane is an organic compound with the chemical formula CH2(NO2)2.[7] Purified dinitromethane is a colorless liquid with a weak pleasant odor. It is relatively stable at room temperature and can be safely stored for months at 0 °C.[5]
Sintesi
[modifica | modifica wikitesto]The potassium salt of dinitromethanide, KCH(NO2)2, was first prepared by Villiers in 1884 by reduction of bromodinitromethane.[8] Hydrogen fluoride and the potassium salt of dinitromethane react in diethyl ether to form dinitromethane.[5] Free dinitromethane was previously understood to be a pale, yellow oil that decomposed rapidly at ambient temperatures.[9]
Dinitromethane should not be confused with methylene dinitrate (CH2(ONO2)2), which is produced as a byproduct in the production of the explosive RDX.[10]
Sicurezza
[modifica | modifica wikitesto]The transportation of dinitromethane is forbidden by the U.S. Department of Transportation.[11]
Note
[modifica | modifica wikitesto]- ^ (EN) PubChem Compound, AC1L1C0X - Compound Summary, su pubchem.ncbi.nlm.nih.gov, National Center for Biotechnology Information, 25 Marzo 2005. URL consultato il 13 Ottobre 2011.
- ^ (EN) Chemical Entities of Biological Interest, methanediyl (CHEBI:29357), su ebi.ac.uk, EBI (UK), 14-01-2009. URL consultato il 02-01-2012.
- ^ (EN) IUPAC Commission on Isotopic Abundances and Atomic Weights., Atomic weights of the elements 2017, su Queen Mary University of London.
- ^ a b (EN) NIOSH Pocket Guide to Chemical Hazards, 1,1,2-Trichloroethane, su cdc.gov, NIOSH.
- ^ a b c Preparation of pure dinitromethane and its physical properties, in Russian Chemical Bulletin, vol. 14, n. 12, 1965, pp. 2190–2191, DOI:10.1007/BF00846018.
- ^ Scheda del composto su IFA-GESTIS
- ^ Dinitromethane, in NIST Chemistry WebBook, NIST Standard Reference Database Number 69, NIST.
- ^ Villiers, R., Sur le bromure d'èthylène tétranitré, in Bulletin de la Société Chimique de France, vol. 41, 1884, p. 281.
- ^ Duden, P., Ueber das Dinitromethan (PDF), in Berichte der Deutschen Chemischen Gesellschaft, vol. 26, n. 3, 1893, pp. 3003–3011, DOI:10.1002/cber.189302603135.
- ^ Luo, K.-M., Lin, S.-H., Chang, J.-G., Huang, T.-H., Evaluations of kinetic parameters and critical runaway conditions in the reaction system of hexamine-nitric acid to produce RDX in a non-isothermal batch reactor, in Journal of Loss Prevention in the Process Industries, vol. 15, n. 2, 2002, pp. 119–127, DOI:10.1016/S0950-4230(01)00027-4.
- ^ DOT Hazardous Materials, su drs.illinois.edu. URL consultato il 1º marzo 2012.
