R152a

  性质 Properties Symbol Unit Value References
Basic Physical and Chemical Properties CAS注册号 CAS Registry Number CASRN / 75-37-6 Scifinder®
中文名称 Chemical Name / / 1,1-Difluoroethane
1,1-二氟乙烷
Scifinder®
英文名称 English Name / / HFC-152a, Fron 152a Scifinder®
组成 Composition / /
分子式 Molecular Formula / / C2H4F2 Scifinder®
结构式 Structure Formula / / CH3CHF2 Scifinder®
相对分子量 Molecular Weight MW / 66.05 Scifinder®
物理状态 Physical State / / Gas dupond MSDS
气味 Odor / / Slight ethereal dupond MSDS
颜色 Color / / Clear,colorless dupond MSDS
熔点 Melting Point mp -117
-117
-117
-118.6
-117
chemblink
Scifinder®
CRC Handbook of Chemistry and Physics(2010)
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
沸点 Boiling Point bp -25
-24.7
-24.5
-24.02
chemblink
Scifinder®
CRC Handbook of Chemistry and Physics(2010)
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
饱和蒸汽压 Saturated Vapor Pressure(25℃) Psat MPa 0.5988
0.59641
dupond MSDS
NIST REFPROP v9.0
液体密度 Liquid Density(25℃) dl g/cm3 0.9
0.896
0.89947
0.8980
dupond MSDS
CRC Handbook of Chemistry and Physics(2010)
NIST REFPROP v9.0
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
气体密度 Vapor Density(25℃, 101.325kPa) dg kg/m3 18.469
2.844
NIST REFPROP v9.0
DuPont MSDS
挥发性 Volatility / wt% 100 dupond MSDS
蒸发速度 Evaporation Rate(CCl4=1) / /
Critical Properties 临界温度 Critical Temperature Tc 113.5
113.55
113.29
Reaxys:Journal of Chemical & Engineering Data,1996,vol.41,#3 P.376-381
CRC Handbook of Chemistry and Physics(2010)
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
临界压力 Critical Pressure Pc MPa 4.515
4.50
4.52
Reaxys:Journal of Chemical & Engineering Data,1996,vol.41,#3 P.376-381
CRC Handbook of Chemistry and Physics(2010)
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
临界体积 Critical Volume Vc cm3/mol 179
179
CRC Handbook of Chemistry and Physics(2010)
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
临界密度 Critical Density ρc kg/m3 365
369
Reaxys:Journal of Physical Chemistry,1990,vol.94,#25 P.8840-8845
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
临界压缩因子 Critical Compressibility Factor Zc / 0.252 Thermophysical Properties of Chemicals and Hydrocarbons, 2008
液体压缩因子 Liquid Compressibility Factor Z / 0.017667 NIST REFPROP v9.0
气体压缩因子 Vapor Compressibility Factor Z / 0.86044 NIST REFPROP v9.0
偏心因子 Acentric Factor ω / 0.27521
0..275
NIST REFPROP v9.0
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
Thermophysical Properties 液体焓 Liquid Enthalpy H kJ/kg 243.73 NIST REFPROP v9.0
气体焓 Vapor Enthalpy H kJ/kg 523.09 NIST REFPROP v9.0
液体熵 Liquid Entropy S kJ/kg·K 1.1519 NIST REFPROP v9.0
气体熵 Vapor Entropy S kJ/kg·K 2.0888 NIST REFPROP v9.0
生成焓 Enthalpy of Formation(25℃) ΔfHO kJ/mol -497.0 CRC Handbook of Chemistry and Physics(2010)
蒸发焓 Enthalpy of Vaporization ΔvH kJ/kg 1445.8345
1260.234
279.36
1435.3986
Scifinder®
CRC Handbook of Chemistry and Physics(2010)
NIST REFPROP v9.0
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
液体等压热容 Liquid Isobaric Heat Capacity(25℃) Cp kJ/kg·K 1.8001 NIST REFPROP v9.0
气体等压热容 Vapor Isobaric Heat Capacity(25℃) Cp kJ/kg·K 1.2536 NIST REFPROP v9.0
液体等容热容 Liquid Isochoric heat capacity(25℃) Cv kJ/kg·K 1.1379 NIST REFPROP v9.0
气体等容热容 Vapor Isochoric heat capacity(25℃) Cv kJ/kg·K 0.99059 NIST REFPROP v9.0
Solubility 偶极矩 Dipole Moment μ D 2.55
2.27±0.05
2.262
Reaxys:Physical Chemistry Chemical Physics,2001,vol.3,#19 P.4200-4207
CRC Handbook of Chemistry and Physics(2010)
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
解离常数 Dissociation Constant
清洗能力 KB
水中溶解度 Solubility in Water(23℃) / ppm wt/wt 2800
6600
dupond MSDS
Scifinder®
贝壳松脂丁醇值 Kauri-Butanol Value KB /
辛醇/水分配系数 Octanol/Water Partition Coefficient LogP / 0.964±0.254 Scifinder®
Hildabrand溶解度参数 Hildabrand Solubility Parameter δ cal/ml
Other Properties 液体焦耳-汤姆逊系数 Liquid Joule-Thomson Coefficient JT ℃/MPa -0.084895 NIST REFPROP v9.0
气体焦耳-汤姆逊系数 Vapor Joule-Thomson Coefficient JT ℃/MPa 30.094 NIST REFPROP v9.0
液体粘度 Liquid Viscosity(25℃) η mPa·s 0.16303 NIST REFPROP v9.0
气体粘度 Vapor Viscosity(25℃) η mPa·s 0.010064 NIST REFPROP v9.0
液体导热系数 Liquid Thermal Conductivity(25℃) λ mW/m·K 97.976 NIST REFPROP v9.0
气体导热系数 Vapor Thermal Conductivity(25℃) λ mW/m·K 14.786 NIST REFPROP v9.0
液体介电常数 Liquid Dielectric Constant ε F/m
气体介电常数 Gas Dielectric Constant ε F/m
液体体积电阻系数 Liquid Volume Resistivity(1kHz) ρ Ω·cm
气体体积电阻系数 Gas Volume Resistivity(1kHz) ρ Ω·cm
表面张力 Surface Tension(25℃) γ mN/m 9.7340
11.57
NIST REFPROP v9.0
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
液体声速 Liquid Sound Velocity u m/s 647.92 NIST REFPROP v9.0
气体声速 Vapor Sound Velocity u m/s 185.65 NIST REFPROP v9.0
最低灭火浓度 Minimum Extinguishment Concentration MEC %
Atmospheric Effects 臭氧消耗潜能值 Ozone Depletion Potential ODP / 0 James M calm Physical,safty,and environmental data for current and alternative refrigerants
全球变暖潜能值 Global Warming Potential(100yr) GWP / 140
133
CRC Handbook of Chemistry and Physics(2010)
James M calm Physical,safty,and environmental data for current and alternative refrigerants
大气寿命 Atmospheric Life / yr 1.4
1.5
CRC Handbook of Chemistry and Physics(2010)
James M calm Physical,safty,and environmental data for current and alternative refrigerants
光化学臭氧合成潜能 photochemica lozone creation potential POCP /
全球温度潜势 global temperature change potential(100yr) GTP / 19 Global Warming Potentials and Radiative Efficiencies of Halocarbons and Related Compounds: A Comprehensive Review, Accepted for publication in Rev. Geophys
Flammability 闪点 Flash Point / -62.0±6.3
<-50
Scifinder®
dupond MSDS
自燃点 Autoignition Point / 454 dupond MSDS
燃烧下限 Lower Flammability Limit LFL %vol 4.0
3.9
3.9
4.0
田贯三,博士学位论文
dupond MSDS
周子成 .HFO-1234yf制冷剂在汽车空调系统中使用的评价
张锐.新型替代制冷剂爆炸极限理论与实验研究
燃烧上限 Upper Flammability Limit UFL %vol 19.8
16.9
16.9
19.6
田贯三,博士学位论文
dupond MSDS
周子成 .HFO-1234yf制冷剂在汽车空调系统中使用的评价
张锐.新型替代制冷剂爆炸极限理论与实验研究
燃烧热 Heat of Combustion HOC MJ/kg 17.4 James M calm Physical,safty,and environmental data for current and alternative refrigerants
最小点火能 Minimum Ignition Energy MIE mJ 0.38 周子成 .HFO-1234yf制冷剂在汽车空调系统中使用的评价
燃烧速度 Burning Velocity Su cm/s 23 周子成 .HFO-1234yf制冷剂在汽车空调系统中使用的评价
可燃浓度限值 ASHRAE Flammable Concentration Limit FCL ppm v/v 12000 ASHRAE 34-2010
最大燃烧压力 Maximum Combustion Pressure 105Pa 8.4 田贯三,博士学位论文
最大燃烧压力上升速率 Maximum Rate of Pressure Increase During Combustion
Toxicity RTECS号 Registry of Toxic Effects of Chemical Substances® Number / / KI1410000 化学物质毒性数据库
接近致死浓度 Approximate Lethal Concentration ALC ppm v/v 383000 dupond MSDS
半数致死浓度 Lethal Concentration 50% LC50 ppm v/v 400000 ASHRAE 34-2010
心脏致敏最低作用剂量 Cardiac Sensitization Lowest Observed Effect Level LOEL ppm v/v 150000 ASHRAE 34-2010
心脏致敏最高无作用剂量 Cardiac Sensitization No Observed Effect Level NOEL ppm v/v 50000 ASHRAE 34-2010
麻醉效应半数作用浓度 Anesthesia Effective Concentration 50% EC50 ppm v/v none ASHRAE 34-2010
麻醉效应最低作用剂量 Anesthesia Lowest Observed Effect Level LOEL ppm v/v none ASHRAE 34-2010
麻醉效应最高无作用剂量 Anesthesia No Observed Effect Level NOEL ppm v/v 100000 ASHRAE 34-2010
28天亚急性吸入毒性 28 Days Subacute Inhalation Toxicity NOEL ppm v/v
90天亚慢性吸入毒性 90 Days Subchronic Inhalation Toxicity NOEL ppm v/v
一年长期吸入毒性 Long Term Inhalation Toxicity (12 month) NOEL ppm v/v
两年长期吸入毒性 Long Term Inhalation Toxicity (24 month) NOEL ppm v/v
立即威胁生命和健康浓度 NIOSH Immediately Dangerous to Life or Health IDLH ppm v/v
缺氧限值 ASHRAE Oxygen Deprivation Limit ODL ppm v/v 140000 ASHRAE 34-2010
急性毒性暴露限值 ASHRAE Acute Toxicity Exposure Limit ATEL ppm v/v 50000 ASHRAE 34-2010
制冷剂浓度限值 ASHRAE Refrigerant Concentration Limit RCL ppm v/v 12000 ASHRAE 34-2010
职业接触限值 ASHRAE Occupational Exposure Limit OEL ppm v/v 1000 James M calm Physical,safty,and environmental data for current and alternative refrigerants
时间加权平均阈限值 ACGIH Threshold Limit Value-Time-Weighted Average TLV-TWA ppm v/v
允许暴露水平 OSHA Permissible Exposure Level PEL ppm v/v
工作环境暴露水平 AIHA Workplace Environmental Exposure Level WEEL ppm v/v 1000 dupond MSDS
可接受暴露限值 Dupont Acceptable Exposure Limit AEL ppm v/v 1000 dupond MSDS
ASHRAE安全等级 ASHRAE Safety Group / / A2 2009 ASHRAE Handbook-Fundamentals
嗅觉阈值 Odor Threshold / ppm v/v
大型水蚤半数作用浓度水生态毒性 Aquatic Toxicity of 48h Daphnia Magna Effective Concentration 50% EC50 mg/L 720 SIDS Initial Assessment Report R152-6
虹鳟鱼半数致死浓度水生态毒性 Aquatic Toxicity of 96h Rainbow Trout Lethal Concentration 50% LC50 mg/L 733 SIDS Initial Assessment Report R152-6
皮肤刺激或腐蚀
降解产物 Degradation Products carbon dioxide,carbon monoxide,halogenated compounds,carbonyl halides Airgas MSDS