Chlorodifluoromethane

Physical and chemical properties
Melting point: -135 ° C
Boiling point: 8.9 ° C
Flash point: -36 ℃
Critical temperature: 178.5 ℃
Critical pressure: 5.18MPa
Ignition temperature: 522 ℃
Saturated vapor pressure: 159kPa (21 ℃)
Appearance: Colorless gas
Solubility: Insoluble in water, soluble in ethanol, ether, carbon tetrachloride
Molar refractive index: 16.5
Molar volume (cm3/mol): 73.6
Waiting for Zhang Biarong (90.2K): 155.7
Surface tension (dyne/cm): 19.9
Polarization rate (10-24cm3): 6.54
Calculate chemical data
Reference value for hydrophobic parameter calculation (XlogP): 2
Number of hydrogen bond donors: 0
Number of hydrogen bond acceptors: 1
Number of rotatable chemical bonds: 0
Number of tautomers: 0
Topological molecule polarity surface area: 0
Number of heavy atoms: 4
Surface charge: 0
Complexity: 13.5
Number of isotopic atoms: 0
Determine the number of atomic stereocenters: 0
Uncertain number of atomic stereocenters: 0
Determine the number of chemical bond stereocenters: 0
Uncertain number of chemical bond stereocenters: 0
Number of covalent bond units:
toxicology data
Acute toxicity: LC50:499000ppm (rat inhalation, 4h) 800000mg/m3 (inhaled by mice, 2 hours).
purpose
Mainly used as a solvent, refrigerant, and aerosol sprayer.
Emergency response to leakage
Quickly evacuate personnel from the contaminated area to upwind areas, isolate them, and strictly restrict their entry and exit. It is recommended that emergency personnel wear self-contained positive pressure respirators and general work clothes. Cut off the leakage source as much as possible. Reasonable ventilation to accelerate diffusion. If possible, use immediately. Leakage containers should be properly handled, repaired, and inspected before use.
Protective measures
Respiratory protection: Generally, no special protection is required. When exposed to high concentrations, a self-priming filter type gas mask (half mask) can be worn.
Eye protection: Generally, no special protection is required.
Body protection: Wear general work clothes.
Hand protection: Wear general work protective gloves.
Other: Avoid inhaling high concentrations. Entry into tanks, confined spaces, or other high concentration areas for work must be supervised by someone.

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