Parameter

PropertyValue
Appearance and propertiesColorless gas
Melting point (℃)-112.2
Boiling point (℃)10.4
Relative density (water = 1)0.87
Relative vapor density (air = 1)1.52
Saturated vapor pressure (kPa)145.91 (20℃)
Critical temperature (℃)195.8
Critical pressure (MPa)7.19
Octanol/water partition coefficient-0.30 (calculated)
Ignition temperature (℃)429
Flash point (℃)< -17.8 (0℃)
Heat of combustion (kJ/mol)1,262.8
Lower explosive limit % (V/V)3.0
Maximum explosion % (V/V)100
pHNo data available
SolubilitySoluble in water, most organic solvents

Note: The values are presented as provided. The flash point is less than -17.8℃ (at 0℃), and the octanol/water partition coefficient is calculated.

Safety Instructions

Main physical and chemical hazards: This product is flammable, toxic, carcinogenic, irritating and sensitizing.
GHS Hazard category: Flammable gases, chemically unstable gases, Category A; Pressurized gas; Acute toxicity – inhalation, category 3*; Skin corrosion/irritation, Category 2; Severe eye injury/eye irritation, Category 2: Germline mutagenicity, Category 1B: carcinogenicity, Category 1A; Specific target organ toxicity – one exposure, category 3; Hazards to the aquatic environment – acute hazards, category 3
Warning word: Danger
Danger information: Explosive reactions may occur even in the absence of air: gases under pressure, if heated, can explode; Cause skin irritation; Can cause genetic defects; Carcinogenic; May cause respiratory irritation, may cause drowsiness or dizziness; Cause severe eye irritation; Toxic by inhalation; Harmful to aquatic organisms;
Precautions: Keep away from heat sources, sparks, open flames and hot surfaces. Work with tools that do not produce sparks. Keep container airtight. Take ESD measures. Ground and connect containers or devices. Use explosion-proof appliances, ventilation, lighting and other equipment. Use personal protective equipment and wear antistatic work clothes as required. No smoking, eating and drinking in the workplace. Avoid high concentration inhalation. Light loading and unloading during handling to prevent cylinder and accessories damage.
Route of invasion: inhalation
Health hazard: It is a central nervous depressant, irritant and protoplasmic poison. Acute poisoning: patients have intense throbbing headache, dizziness, nausea and vomiting, tears, coughing, chest tightness, dyspnea; Heavy body muscle fibrillation, speech disorders ataxia, sweating, confusion, resulting in coma. Myocardial damage and abnormal liver function were also seen. After rescue and recovery, there may be temporary insanity, delayed functional aphonia or central hemiplegia. Skin contact quickly redness and swelling, foaming after a few hours, repeated contact can sensitize. Liquid splashing into the eyes can cause corneal burns. Chronic effects: Long-term exposure to small amounts can be seen in neurasthenic syndrome and autonomic dysfunction.
Emergency summary: such as leakage: quickly evacuate the contaminated area to the upper wind, and isolation, strictly restrict access. Cut off the fire. Emergency personnel are advised to wear self-contained positive pressure breathing apparatus and fire protective clothing. Cut off the source of leakage as much as possible. Reasonable ventilation to accelerate diffusion. Dilute and dissolve in spray water. Build embankments or dig pits to contain large amounts of waste water. If possible, send the leaking gas to the open area with the exhaust fan or install the appropriate nozzle to burn off. If the leaking gas catches fire: Do not extinguish the fire unless the source of the leak can be safely cut off. If there is no danger, eliminate all sources of ignition. In case of fire, spray water to cool the container and move it from the fire to an open area if possible. In case of fire, fog water, foam, carbon dioxide, dry powder extinguishing agent is used to extinguish the fire. If inhaled: quickly remove from the scene to fresh air. Keep your airway clear. If breathing is difficult, give transfusion. If breathing stops, give artificial respiration immediately. Seek medical attention.
Environmental hazard: harmful to the environment.