二甲醚

  性质 Properties Symbol Unit Value References
Basic Physical and Chemical Properties CAS注册号 CAS Registry Number CASRN / 115-10-6 Scifinder®
中文名称 Chemical Name / / Dimethyl ether; methoxymethane Scifinder®
英文名称 English Name / / Dimethyl ether; methoxymethane Scifinder®
组成 Composition / /
分子式 Molecular Formula / / C2H6O Scifinder®
结构式 Structure Formula / / CH3OCH3 Scifinder®
相对分子量 Molecular Weight MW / 46.07 Scifinder®
物理状态 Physical State / / 气体 CRC Handbook of Chemistry and Physics(2010)
气味 Odor / /
颜色 Color / /
熔点 Melting Point mp
沸点 Boiling Point bp -24.8 NIST REFPROP 9.0[CP]
饱和蒸汽压 Saturated Vapor Pressure(25℃) Psat MPa 0.622 NIST REFPROP 9.0[CP]
液体密度 Liquid Density(25℃) dl g/cm3 0.6584 NIST REFPROP 9.0[CP]
气体密度 Vapor Density(25℃, 101.325kPa) dg kg/m3 13.101 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 127.23 NIST REFPROP 9.0[CP]
临界压力 Critical Pressure Pc MPa 5.356 NIST REFPROP 9.0[CP]
临界体积 Critical Volume Vc cm3/mol
临界密度 Critical Density ρc kg/m3 271.0 NIST REFPROP 9.0[CP]
临界压缩因子 Critical Compressibility Factor Zc /
液体压缩因子 Liquid Compressibility Factor Z /
气体压缩因子 Vapor Compressibility Factor Z /
偏心因子 Acentric Factor ω /
Thermophysical Properties 液体焓 Liquid Enthalpy H kJ/kg
气体焓 Vapor Enthalpy H kJ/kg
液体熵 Liquid Entropy S kJ/kg·K
气体熵 Vapor Entropy S kJ/kg·K
生成焓 Enthalpy of Formation(25℃) ΔfHO kJ/mol
蒸发焓 Enthalpy of Vaporization ΔvH kJ/kg 470.66 NIST REFPROP 9.0[CP]
液体等压热容 Liquid Isobaric Heat Capacity(25℃) Cp kJ/kg·K 2.4453 REFPROP 9.0
气体等压热容 Vapor Isobaric Heat Capacity(25℃) Cp kJ/kg·K 1.7328 REFPROP 9.0
液体等容热容 Liquid Isochoric heat capacity(25℃) Cv kJ/kg·K 1.5435 REFPROP 9.0
气体等容热容 Vapor Isochoric heat capacity(25℃) Cv kJ/kg·K 1.3893 REFPROP 9.0
Solubility 偶极矩 Dipole Moment μ D
解离常数 Dissociation Constant
清洗能力 KB
水中溶解度 Solubility in Water(23℃) / ppm wt/wt
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
气体焦耳-汤姆逊系数 Vapor Joule-Thomson Coefficient JT ℃/MPa
液体粘度 Liquid Viscosity(25℃) η mPa·s 0.12602 NIST REFPROP 9.0[CP]
气体粘度 Vapor Viscosity(25℃) η mPa·s 0.0093974 NIST REFPROP 9.0[CP]
液体导热系数 Liquid Thermal Conductivity(25℃) λ mW/m·K 102.92 REFPROP 9.0
气体导热系数 Vapor Thermal Conductivity(25℃) λ mW/m·K 18.395 NIST REFPROP 9.0[CP]
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 11.43 NIST REFPROP 9.0[CP]
液体声速 Liquid Sound Velocity u m/s 859.61 NIST REFPROP 9.0[CP]
气体声速 Vapor Sound Velocity u m/s 225.91 NIST REFPROP 9.0[CP]
最低灭火浓度 Minimum Extinguishment Concentration MEC %
Atmospheric Effects 臭氧消耗潜能值 Ozone Depletion Potential ODP / 0 [6] Calm J.M, Hourzhan G.C.. Physical, safety and environmental data for current and alternative refrigerants [C/OL]. [2015-03-02]. http://nccashrae.org/images/meeting/031214/calm_jm_hourahan_gc_2011__physical_safety_and_environmental_data_for_current_and_alternative_refrigerants_icr_2011__prague_cz__iir_iif_paris_fr.pdf
全球变暖潜能值 Global Warming Potential(100yr) GWP / James M calm Physical,safty,and environmental data for current and alternative refrigerants
大气寿命 Atmospheric Life / yr 0.015 [6] Calm J.M, Hourzhan G.C.. Physical, safety and environmental data for current and alternative refrigerants [C/OL]. [2015-03-02]. http://nccashrae.org/images/meeting/031214/calm_jm_hourahan_gc_2011__physical_safety_and_environmental_data_for_current_and_alternative_refrigerants_icr_2011__prague_cz__iir_iif_paris_fr.pdf
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 / -41 David R. Lide. CRC Handbook of Chemistry and Physics [M]. CRC Press, 2009.
自燃点 Autoignition Point / 350.0 David R. Lide. CRC Handbook of Chemistry and Physics [M]. CRC Press, 2009.
燃烧下限 Lower Flammability Limit LFL %vol 3.4 David R. Lide. CRC Handbook of Chemistry and Physics [M]. CRC Press, 2009.
燃烧上限 Upper Flammability Limit UFL %vol 27.0 David R. Lide. CRC Handbook of Chemistry and Physics [M]. CRC Press, 2009.
燃烧热 Heat of Combustion HOC MJ/kg 31.7 David R. Lide. CRC Handbook of Chemistry and Physics [M]. CRC Press, 2009.
最小点火能 Minimum Ignition Energy MIE mJ
燃烧速度 Burning Velocity Su cm/s
可燃浓度限值 ASHRAE Flammable Concentration Limit FCL ppm v/v 8500 ASHRAE Standard 34:Designation and Safety Classification of Refrigerants[S]. 2007.
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 / /
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 164000 ASHRAE Standard 34:Designation and Safety Classification of Refrigerants[S]. 2007.
心脏致敏最低作用剂量 Cardiac Sensitization Lowest Observed Effect Level LOEL ppm v/v 200000 ASHRAE Standard 34:Designation and Safety Classification of Refrigerants[S]. 2007.
心脏致敏最高无作用剂量 Cardiac Sensitization No Observed Effect Level NOEL ppm v/v 10000 ASHRAE Standard 34:Designation and Safety Classification of Refrigerants[S]. 2007.
麻醉效应半数作用浓度 Anesthesia Effective Concentration 50% EC50 ppm v/v
麻醉效应最低作用剂量 Anesthesia Lowest Observed Effect Level LOEL ppm v/v
麻醉效应最高无作用剂量 Anesthesia No Observed Effect Level NOEL ppm v/v
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
急性毒性暴露限值 ASHRAE Acute Toxicity Exposure Limit ATEL ppm v/v
制冷剂浓度限值 ASHRAE Refrigerant Concentration Limit RCL ppm v/v 8500 ASHRAE Standard 34:Designation and Safety Classification of Refrigerants[S]. 2007.
职业接触限值 ASHRAE Occupational Exposure Limit OEL ppm v/v 1000 ASHRAE Standard 34:Designation and Safety Classification of Refrigerants[S]. 2007.
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
可接受暴露限值 Dupont Acceptable Exposure Limit AEL ppm v/v
ASHRAE安全等级 ASHRAE Safety Group / /
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
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
皮肤刺激或腐蚀
降解产物 Degradation Products