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| CAS No.: | 517-25-9 |
|---|---|
| Name: | trinitromethane |
| Article Data: | 50 |
| Molecular Structure: | |
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|
|
| Formula: | CH N3 O6 |
| Molecular Weight: | 151.035 |
| Synonyms: | Nitroform(6CI); Nitroform (explosive); Trinitromethane |
| Density: | 1.803g/cm3 |
| Melting Point: | 15°; mp 50° |
| Boiling Point: | 175.1°Cat760mmHg |
| Flash Point: | 73°C |
| Hazard Symbols: | Explodes on heating, concentrations above 50% in air may explode. |
| Safety: | Poison by ingestion and intraperitoneal routes. Moderately toxic by inhalation. Irritating to skin, eyes, and mucous membranes. Inhalation can cause headache and nausea. Causes mild narcosis. A very dangerous explosion hazard; explodes when heated rapidly. Dissolution is exothermic and solutions of more than 50% can explode. Mixtures of 90% trinitromethane + 10% isopropyl alcohol in polyethylene bottles have exploded. Frozen mixtures with 2-propanol (10%) explode when thawed. Can explode during distillation. Mixtures with divinyl ketone can explode at 4°C. When heated to decomposition it emits toxic fumes of NOx. See also NITRO COMPOUNDS. |
| PSA: | 137.46000 |
| LogP: | 0.66970 |
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Chemistry
IUPAC Name: Trinitromethane
Molecular Formula: CHN3O6
Molecular Weight: 151.05
EINECS: 208-236-8
Appearance: colorless crystalline
Density: 1.803g/cm3
Melting Point: 15°C
Boiling Point: 175.1 °C at 760 mmHg
Flash Point: 73 °C
Properties: crystals
Solubility: soluble in water, ethanol and acetone
Freely Rotating Bonds: 3
Polar Surface Area: 137.46 Å2
Index of Refraction: 1.501
Molar Refractivity: 24.7 cm3
Molar Volume: 83.7 cm3
Polarizability: 9.79× 10-24 cm3
Surface Tension: 73.1 dyne/cm
Enthalpy of Vaporization: 41.14 kJ/mol
Vapour Pressure: 1.17 mmHg at 25°C
The Cas Register Number of Trinitromethane is 517-25-9.The chemical synonyms of Trinitromethane (CAS NO.517-25-9) are Trinitromethane ; Methane, trinitro- ; Nitroform ; Trinitromethane ; BRN 1708361 .The molecular structure of Trinitromethane (CAS NO.517-25-9) is
.
History
Shiskov first obtained it as the ammonium salt in 1857. In 1900, Trinitromethane (CAS NO.517-25-9) was discovered that it can be produced by the reaction of acetylene with anhydrous nitric acid. This method did not become the industrial process of choice untill the 20th century.
Uses
Trinitromethane (CAS NO.517-25-9) is used as explosives and rocket fuel and in the manuf of explosive and propellant.
Production
It is derived by the reaction of acetylene and nitric acid.
Toxicity Data With Reference
| 1. | orl-mus LDLo:300 mg/kg | 85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,93. | ||
| 2. | ihl-mus LC50:800 mg/m3/2H | 85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,93. | ||
| 3. | ipr-mus LD50:115 mg/kg | KHFZAN Khimiko-Farmatsevticheskii Zhurnal. Chemical Pharmaceutical Journal. 10 (6)(1976),53. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Poison by ingestion and intraperitoneal routes. Moderately toxic by inhalation. Irritating to skin, eyes, and mucous membranes. Inhalation can cause headache and nausea. Causes mild narcosis. A very dangerous explosion hazard; explodes when heated rapidly. Dissolution is exothermic and solutions of more than 50% can explode. Mixtures of 90% trinitromethane + 10% isopropyl alcohol in polyethylene bottles have exploded. Frozen mixtures with 2-propanol (10%) explode when thawed. Can explode during distillation. Mixtures with divinyl ketone can explode at 4°C. When heated to decomposition it emits toxic fumes of NOx. See also NITRO COMPOUNDS.
RIDADR: 0473
HazardClass: 1.1A
Standards and Recommendations
DOT Classification: Forbidden
Specification
Trinitromethane (CAS NO.517-25-9) forms a series of bright yellow ionic salts. Many of these salts tend to be unstable and can be easily detonated by heat or impact. Because aqueous solutions of trinitromethane are quite acidic, this poses a handling danger similar to that of picric acid due to corrosion of iron or aluminum surfaces.