异丁烷

  性质 Properties Symbol Unit Value References
Basic Physical and Chemical Properties CAS注册号 CAS Registry Number CASRN / 75-28-5 Scifinder®
中文名称 Chemical Name / / 2-methyl-1,1Dimethylethane
异丁烷
Scifinder®
英文名称 English Name / / Isobutane,R600a,Trimethylmethane Scifinder®
组成 Composition / / /
分子式 Molecular Formula / / C4H10 Scifinder®
结构式 Structure Formula / / (CH3)2CHCH3 Scifinder®
相对分子量 Molecular Weight MW / 58.12 Scifinder®
物理状态 Physical State / / Gas CRC Handbook of Chemistry and Physics(2010)
气味 Odor / /
颜色 Color / /
熔点 Melting Point mp -159.61
-159.4
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
CRC Handbook of Chemistry and Physics(2010)
沸点 Boiling Point bp -10.5±3.0
-11.72
-11.7
-11.73
Scifinder®
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
James M calm Physical,safty,and environmental data for current and alternative refrigerants
CRC Handbook of Chemistry and Physics(2010)
饱和蒸汽压 Saturated Vapor Pressure(25℃) Psat MPa 0.344
0.3496
0.35067
Scifinder®
CRC Handbook of Chemistry and Physics(2010)
REFPROP 9.0
液体密度 Liquid Density(25℃) dl g/cm3 0.612±0.06
0.552
0.5510
0.55065
Scifinder®
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
CRC Handbook of Chemistry and Physics(2010)
REFPROP 9.0
气体密度 Vapor Density(25℃, 101.325kPa) dg kg/m3 9.1258 REFPROP 9.0
挥发性 Volatility / wt%
蒸发速度 Evaporation Rate(CCl4=1) / /
Critical Properties 临界温度 Critical Temperature Tc 134.65
134.7
134.735
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
James M calm Physical,safty,and environmental data for current and alternative refrigerants
CRC Handbook of Chemistry and Physics(2010)
临界压力 Critical Pressure Pc MPa 3.640
3.63
3.6390
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
James M calm Physical,safty,and environmental data for current and alternative refrigerants
CRC Handbook of Chemistry and Physics(2010)
临界体积 Critical Volume Vc cm3/mol 259.0
255.5
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
CRC Handbook of Chemistry and Physics(2010)
临界密度 Critical Density ρc kg/m3 224.4 Thermophysical Properties of Chemicals and Hydrocarbons, 2008
临界压缩因子 Critical Compressibility Factor Zc / 0.278 Thermophysical Properties of Chemicals and Hydrocarbons, 2008
液体压缩因子 Liquid Compressibility Factor Z / 0.014931 REFPROP 9.0
气体压缩因子 Vapor Compressibility Factor Z / 0.90094 REFPROP 9.0
偏心因子 Acentric Factor ω / 0.184 Thermophysical Properties of Chemicals and Hydrocarbons, 2008
Thermophysical Properties 液体焓 Liquid Enthalpy H kJ/kg 146.54
258.98
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
气体焓 Vapor Enthalpy H kJ/kg 475.62
587.90
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
液体熵 Liquid Entropy S kJ/kg·K 0.3059
1.2053
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
气体熵 Vapor Entropy S kJ/kg·K 0.9191
2.3085
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
生成焓 Enthalpy of Formation(25℃) ΔfHO kJ/mol -134.2 CRC Handbook of Chemistry and Physics(2010)
蒸发焓 Enthalpy of Vaporization ΔvH kJ/kg 1237.956
330.86
1243.54-12
328.92
Scifinder®
CRC Handbook of Chemistry and Physics(2010)
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
REFPROP 9.0
液体等压热容 Liquid Isobaric Heat Capacity(25℃) Cp kJ/kg·K 2.4300 REFPROP 9.0
气体等压热容 Vapor Isobaric Heat Capacity(25℃) Cp kJ/kg·K 1.7955 REFPROP 9.0
液体等容热容 Liquid Isochoric heat capacity(25℃) Cv kJ/kg·K 1.6829 REFPROP 9.0
气体等容热容 Vapor Isochoric heat capacity(25℃) Cv kJ/kg·K 1.5677 REFPROP 9.0
Solubility 偶极矩 Dipole Moment μ D 0.132
0.132±0.002
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
CRC Handbook of Chemistry and Physics(2010)
解离常数 Dissociation Constant
清洗能力 KB
水中溶解度 Solubility in Water(23℃) / ppm wt/wt 150
53.5
Scifinder®
CRC Handbook of Chemistry and Physics(2010)
贝壳松脂丁醇值 Kauri-Butanol Value KB /
辛醇/水分配系数 Octanol/Water Partition Coefficient LogP / 2.589±0.179
2.8
Scifinder®
CRC Handbook of Chemistry and Physics(2010)
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 -0.23085 REFPROP 9.0
气体焦耳-汤姆逊系数 Vapor Joule-Thomson Coefficient JT ℃/MPa 24.966 REFPROP 9.0
液体粘度 Liquid Viscosity(25℃) η mPa·s 0.1511
0.15113
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
气体粘度 Vapor Viscosity(25℃) η mPa·s 0.0075
0.007627
0.0074965
2009 ASHRAE Handbook-Fundamentals
CRC Handbook of Chemistry and Physics(2010
REFPROP 9.0
液体导热系数 Liquid Thermal Conductivity(25℃) λ mW/m·K 89.262 REFPROP 9.0
气体导热系数 Vapor Thermal Conductivity(25℃) λ mW/m·K 16.1
16.823
CRC Handbook of Chemistry and Physics(2010)
REFPROP 9.0
液体介电常数 Liquid Dielectric Constant ε F/m 1.7518
1.7453
CRC Handbook of Chemistry and Physics(2010)
REFPROP 9.0
气体介电常数 Gas Dielectric Constant ε F/m 1.00260
1.0099
CRC Handbook of Chemistry and Physics(2010)
REFPROP 9.0
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 10.102
9.84
2009 ASHRAE Handbook-Fundamentals
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
液体声速 Liquid Sound Velocity u m/s 820.7
820.65
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
气体声速 Vapor Sound Velocity u m/s 197.9
197.90
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
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 / ~20 James M calm Physical,safty,and environmental data for current and alternative refrigerants
大气寿命 Atmospheric Life / yr 0.016 James M calm Physical,safty,and environmental data for current and alternative refrigerantsJames 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 /
Flammability 闪点 Flash Point / -71.5±10.3
-87
-83.15
Scifinder®
CRC Handbook of Chemistry and Physics(2010)
Airgas MSDS
自燃点 Autoignition Point / 460
475.85
CRC Handbook of Chemistry and Physics(2010)
Airgas MSDS
燃烧下限 Lower Flammability Limit LFL %vol 1.8
1.0
1.8
1.8
田贯三,博士学位论文
张锐.新型替代制冷剂爆炸极限理论与实验研究
CRC Handbook of Chemistry and Physics(2010)
Airgas MSDS
燃烧上限 Upper Flammability Limit UFL %vol 8.5
8.5
8.4
8.4
田贯三,博士学位论文
张锐.新型替代制冷剂爆炸极限理论与实验研究
CRC Handbook of Chemistry and Physics(2010)
Airgas MSDS
燃烧热 Heat of Combustion HOC MJ/kg 49.4
49.36
James M calm Physical,safty,and environmental data for current and alternative refrigerants
CRC Handbook of Chemistry and Physics(2010)
最小点火能 Minimum Ignition Energy MIE mJ 0.52 张锐.新型替代制冷剂爆炸极限理论与实验研究
燃烧速度 Burning Velocity Su cm/s
可燃浓度限值 ASHRAE Flammable Concentration Limit FCL ppm v/v 4000 ASHRAE 34-2010
最大燃烧压力 Maximum Combustion Pressure 105Pa 7.6 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 / / TZ4300000 MRC MSDS
接近致死浓度 Approximate Lethal Concentration ALC ppm v/v
半数致死浓度 Lethal Concentration 50% LC50 ppm v/v 143000 ASHRAE 34-2010
心脏致敏最低作用剂量 Cardiac Sensitization Lowest Observed Effect Level LOEL ppm v/v 50000 ASHRAE 34-2010
心脏致敏最高无作用剂量 Cardiac Sensitization No Observed Effect Level NOEL ppm v/v 25000 ASHRAE 34-2010
麻醉效应半数作用浓度 Anesthesia Effective Concentration 50% EC50 ppm v/v 200000 ASHRAE 34-2010
麻醉效应最低作用剂量 Anesthesia Lowest Observed Effect Level LOEL ppm v/v 10000 ASHRAE 34-2010
麻醉效应最高无作用剂量 Anesthesia No Observed Effect Level NOEL ppm v/v none ASHRAE 34-2010
28天亚急性吸入毒性 28 Days Subacute Inhalation Toxicity NOEL ppm v/v >9000 Refinery gases category analysis and hazard characterization
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 25000 ASHRAE 34-2010
制冷剂浓度限值 ASHRAE Refrigerant Concentration Limit RCL ppm v/v 4000 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 1000
800
CRC Handbook of Chemistry and Physics(2010)
Waterbury Companies MSDS R152-4
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
可接受暴露限值 Dupont Acceptable Exposure Limit AEL ppm v/v
ASHRAE安全等级 ASHRAE Safety Group / / A3 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 12.7 – 164 Refinery gases category analysis and hazard characterization
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 11.3 – 167 Refinery gases category analysis and hazard characterization
皮肤刺激或腐蚀
降解产物 Degradation Products Carbon dioxide,Carbon monoxide Airgas MSDS