性质 Properties Symbol Unit Value References
Basic Physical and Chemical Properties CAS注册号 CAS Registry Number CASRN / 7664-41-7 Scifinder®
中文名称 Chemical Name / / Ammonia
Scifinder®
英文名称 English Name / / R 717,Ammonia gas,Nitro-Sil Scifinder®
组成 Composition / / /
分子式 Molecular Formula / / NH3 Scifinder®
结构式 Structure Formula / / NH3 Scifinder®
相对分子量 Molecular Weight MW / 17.03 James M calm Physical,safty,and environmental data for current and alternative refrigerants
物理状态 Physical State / / gas BOC Gases MSDS
气味 Odor / / a pungent odor BOC Gases MSDS
颜色 Color / / colorless BOC Gases MSDS
熔点 Melting Point mp -77.7
-77.7
77.73
Scifinder®
Lange's Handbook of chemistry
CRC Handbook of Chemistry and Physics(2010)
沸点 Boiling Point bp -33
-33.3
33.33
Scifinder®
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 0.988 CRC Handbook of Chemistry and Physics(2010)
液体密度 Liquid Density(25℃) dl g/cm3 0.60427
0.60276
0.7347-77
Scifinder®
REFPROP 9.0
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
气体密度 Vapor Density(25℃, 101.325kPa) dg kg/m3 7.8069 REFPROP 9.0
挥发性 Volatility / wt% 100 TI MSDS
蒸发速度 Evaporation Rate(CCl4=1) / /
Critical Properties 临界温度 Critical Temperature Tc 132.5
132.3
132.41
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 11.280
11.33
11.357
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 72.47
69.8
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
CRC Handbook of Chemistry and Physics(2010)
临界密度 Critical Density ρc kg/m3 235.0 Thermophysical Properties of Chemicals and Hydrocarbons, 2008
临界压缩因子 Critical Compressibility Factor Zc / 0.242 Thermophysical Properties of Chemicals and Hydrocarbons, 2008
液体压缩因子 Liquid Compressibility Factor Z / 0.011434 REFPROP 9.0
气体压缩因子 Vapor Compressibility Factor Z / 0.88284 REFPROP 9.0
偏心因子 Acentric Factor ω / 0.2526 Thermophysical Properties of Chemicals and Hydrocarbons, 2008
Thermophysical Properties 液体焓 Liquid Enthalpy H kJ/kg 298.65
460.82
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
气体焓 Vapor Enthalpy H kJ/kg 1465
1626.6
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
液体熵 Liquid Entropy S kJ/kg·K 0.6237
4.381
1.8804
2009 ASHRAE Handbook-Fundamentals
CRC Handbook of Chemistry and Physics(2010)
REFPROP 9.0
气体熵 Vapor Entropy S kJ/kg·K 2.797
5.7904
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
生成焓 Enthalpy of Formation(25℃) ΔfHO kJ/mol -45.94 CRC Handbook of Chemistry and Physics(2010)
蒸发焓 Enthalpy of Vaporization ΔvH kJ/kg 395.437-33
1166.11
1165.8
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
CRC Handbook of Chemistry and Physics(2010)
REFPROP 9.0
液体等压热容 Liquid Isobaric Heat Capacity(25℃) Cp kJ/kg·K 4.7844 REFPROP 9.0
气体等压热容 Vapor Isobaric Heat Capacity(25℃) Cp kJ/kg·K 3.1315 REFPROP 9.0
液体等容热容 Liquid Isochoric heat capacity(25℃) Cv kJ/kg·K 2.7647 REFPROP 9.0
气体等容热容 Vapor Isochoric heat capacity(25℃) Cv kJ/kg·K 2.1308 REFPROP 9.0
Solubility 偶极矩 Dipole Moment μ D 1.472
1.4718
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
CRC Handbook of Chemistry and Physics(2010)
解离常数 Dissociation Constant 9.25 CRC Handbook of Chemistry and Physics(2010)
清洗能力 KB
水中溶解度 Solubility in Water(23℃) / ppm wt/wt 8990000 TI MSDS
贝壳松脂丁醇值 Kauri-Butanol Value KB /
辛醇/水分配系数 Octanol/Water Partition Coefficient LogP /
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 -0.083982 REFPROP 9.0
气体焦耳-汤姆逊系数 Vapor Joule-Thomson Coefficient JT ℃/MPa 26.126 REFPROP 9.0
液体粘度 Liquid Viscosity(25℃) η mPa·s 0.1316
0.13168
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
气体粘度 Vapor Viscosity(25℃) η mPa·s 0.009837
0.0098346
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
液体导热系数 Liquid Thermal Conductivity(25℃) λ mW/m·K 485.51 REFPROP 9.0
气体导热系数 Vapor Thermal Conductivity(25℃) λ mW/m·K 24.427
26.159
CRC Handbook of Chemistry and Physics(2010)
REFPROP 9.0
液体介电常数 Liquid Dielectric Constant ε F/m 15.520
16.61
2009 ASHRAE Handbook-Fundamentals
CRC Handbook of Chemistry and Physics(2010)
气体介电常数 Gas Dielectric Constant ε F/m 1.00720
1.00622
2009 ASHRAE Handbook-Fundamentals
CRC Handbook of Chemistry and Physics(2010)
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 24.816
20.21
24.812
2009 ASHRAE Handbook-Fundamentals
Thermophysical Properties of Chemicals and Hydrocarbons, 2008
REFPROP 9.0
液体声速 Liquid Sound Velocity u m/s 1347
1347.1
2009 ASHRAE Handbook-Fundamentals
REFPROP 9.0
气体声速 Vapor Sound Velocity u m/s 404.9
404.92
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 / <1 James M calm Physical,safty,and environmental data for current and alternative refrigerants
大气寿命 Atmospheric Life / yr <0.02 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 /
Flammability 闪点 Flash Point / none TI MSDS
自燃点 Autoignition Point / 651
651
850
Airproduct MSDS
TI MSDS(catalyzed iron)
TI MSDS(uncatalyzed)
燃烧下限 Lower Flammability Limit LFL %vol 15.0
15.0
16
16
周子成 .HFO-1234yf制冷剂在汽车空调系统中使用的评价
Lange's Handbook of chemistry
CRC Handbook of Chemistry and Physics(2010)
Airproduct MSDS
燃烧上限 Upper Flammability Limit UFL %vol 28.0
27.0
25
25
周子成 .HFO-1234yf制冷剂在汽车空调系统中使用的评价
Lange's Handbook of chemistry
CRC Handbook of Chemistry and Physics(2010)
Airproduct MSDS
燃烧热 Heat of Combustion HOC MJ/kg 22.5
22.48
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 100-300 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 6.7 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 42000 ASHRAE 34-2010
最大燃烧压力 Maximum Combustion Pressure 105Pa
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 / / BO0875000 化学物质毒性数据库
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 3300 ASHRAE 34-2010
心脏致敏最低作用剂量 Cardiac Sensitization Lowest Observed Effect Level LOEL ppm v/v none ASHRAE 34-2010
心脏致敏最高无作用剂量 Cardiac Sensitization No Observed Effect Level NOEL ppm v/v >3300 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 >3300 ASHRAE 34-2010
麻醉效应最高无作用剂量 Anesthesia No Observed Effect Level NOEL ppm v/v 38900 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 300 Airproduct MSDS
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 320 ASHRAE 34-2010
制冷剂浓度限值 ASHRAE Refrigerant Concentration Limit RCL ppm v/v 320 ASHRAE 34-2010
职业接触限值 ASHRAE Occupational Exposure Limit OEL ppm v/v 25 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 25 Airproduct MSDS
允许暴露水平 OSHA Permissible Exposure Level PEL ppm v/v 50 Airproduct MSDS
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 / / B2
B2L
2009 ASHRAE Handbook-Fundamentals
James M calm Physical,safty,and environmental data for current and alternative refrigerants
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 189 Airproduct MSDS
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 8.2(Fathead minnow) Airproduct MSDS
皮肤刺激或腐蚀
降解产物 Degradation Products Oxides of nitrogen Airproduct MSDS