Vapor pressure of neopentane at 37.8 degrees

1. Aliases/English names: Neopentane, Tetramethylmethane； Neopentane, Tetramethylmethane, 2,2-Dimethylpropane. 2. Uses: Raw material for isobutylene, used in the synthesis of butyl rubber, as a solvent, and as a synthetic intermediate. 3. Production method: The liquid hydrocarbons obtained after butane is extracted from natural gas are further refined to produce it. 4. Physical and chemical properties: Molecular weight: 72.15; Melting point: -16.6°C; Boiling point (101.325 kPa): 9.5°C; Liquid density (9.5°C, 101.325 kPa): 603.2 kg/m³; Gas density (101.325 kPa, 25°C): 2.95 l/kg/m³; Relative density (101.325 kPa, 25°C, air = 1): 2.49; Specific volume (21.1°C, 101.325 kPa): 0.3308 m³/kg; Gas-liquid volume ratio (15°C, 100 kPa): 153 L/L; Compression coefficient: Pressure (kPa): 25, 50, 100, 200; Temperature (°C): 15 – 0.9915, 0.9828, 0.9651, 50 – 0.9924, 0.9848, 0.9689, 0.9356; Critical temperature: 160.6°C; Critical pressure: 3198.8 kPa; Critical density: 238 kg/m³; Heat of fusion (-16.6°C): 45129 kJ/kg; Heat of vaporization AHv (9.5°C): 315.36 kJ/kg; Heat capacities (gas, 101.325 kPa, 15.6°C): Cp = 1.638 kJ/(kg·K), Cv = 1.522 kJ/(kg·K); (liquid, 25°C): 2.366 kJ/(kg·K); Heat capacity ratio (gas, 101.325 kPa, 15.6°C): Cp/Cv = 1.076; Vapor pressure (-60°C): 3.093 kPa; (40°C): 210.45 kPa; (100°C): 1117.92 kPa; Viscosity (gas, 101.325 kPa, 20°C): 0.0070 mPa·s; (liquid, 0°C): 0.328 mPa·s; Thermal conductivity (gas, 101.325 kPa, 25°C): 0.01485 W/(m·K); Surface tension (30°C): 10.98 mN/m; Refractive index (liquid, nD, 6°C): 1.3476; Flash point: -75.15°C; Ignition point: 456.2°C; Flammability range in air: 1.4%–7.5%; Equivalent combustion flame temperature: 1971°C; Maximum flame velocity during equivalent combustion: 0.34 m/s; Heat of combustion (25°C, liquid): 3230 kJ/mol; (25°C, gas): 3253 kJ/mol; Flammability level: 4; Toxicity level: 1; Reactivity level: 0. 2,2-Dimethylpropane is a colorless, flammable gas at normal temperature and pressure. It is easily liquefied, with a S.P. of 149.6 kPa at 21.1°C. It is soluble in alcohol and ether. It begins to decompose at 400°C. It burns very easily and is at risk of catching fire when exposed to high temperatures, open flames, or strong oxidizing agents. Can form an explosive mixture with air. 5. Toxicity: 2,2-dimethylpropane gas is not highly toxic in itself; it has certain **effects and causes mild irritation to mucous membranes. High concentrations can cause asphyxiation. Inhaling 2,2-dimethylpropane gas can cause symptoms such as shortness of breath, mood instability, fatigue, nausea, vomiting, and spasms. 6. Safety protection: Gas storage cylinders should be kept away from heat sources and flames. They must be stored separately from oxygen, chlorine, nitric acid, highly oxidizing substances, and flammable materials. Attention should be paid to the flow rate when filling them into containers, and grounding devices should be used to prevent static electricity buildup. 2,2-Dimethylpropane gas is non-corrosive, allowing the use of common metal materials. Most plastics except polyisobutylene and ethyl fiber can be used. In the event of a fire, the first thing to do is to close the cylinder valve to cut off the flow of gas and extinguish the fire. Foam, carbon dioxide, and sand can be used to extinguish fires. Containers in the fire area can be cooled by watering, and if possible, the gas cylinders should be moved to a safe location. The leaked gas can be exhausted to an open area using an exhaust fan.

What’s the vapor pressure at 37.8 degrees?

The vapor pressure of neopentane at 37.8 is listed in ASTM D2598; now the density of vinyl acetylene at 15.6 degrees is available.