1,4-diaminohexadecane | 791738-62-0

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 1,4-diaminohexadecane
• 英文别名: Hexadecane-1,4-diamine
• CAS: 791738-62-0
• 化学式: C₁₆H₃₆N₂
• 分子量: 256.475
• InChiKey: JDSNXQCTHCTXDK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  18
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  52
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1,4-diaminohexadecane 在 platinum(IV) oxide 盐酸 、 sodium hydroxide 、 氢气 作用下， 以 乙醇 、 氯仿 为溶剂， 反应 19.0h， 生成 1,4-二氨基十六烷二盐酸盐
  参考文献：
  名称：

  1,4-Diaminoalkanes from pyrroles. A new synthetic approach to substituted putrescines

  摘要：

  DOI：

  10.1021/jo00188a021
• 作为产物：
  描述：

  N,N-二甲基十二酰胺 在 氢氧化钾 、 sodium hydroxide 、 盐酸羟胺 、 水 、 sodium 、 碳酸氢钠 、 一水合肼 、 三氯氧磷 作用下， 以 乙醇 、 乙二醇 为溶剂， 反应 72.5h， 生成 1,4-diaminohexadecane
  参考文献：
  名称：

  1,4-Diaminoalkanes from pyrroles. A new synthetic approach to substituted putrescines

  摘要：

  DOI：

  10.1021/jo00188a021

文献信息

• Low viscosity lubricating oil compositions for turbomachines
  申请人：ExxonMobil Research and Engineering Company

  公开号：US10689593B2

  公开（公告）日：2020-06-23

  This disclosure relates to a low viscosity lubricating turbine oil having a composition comprising a lubricating oil base stock, as a major component, and one or more lubricating oil additives, as minor components. The lubricating turbine oil has a kinematic viscosity of about 16 cSt to about 22 cSt at 40° C., a density of about 0.8 g/ml to about 0.9 g/ml, and an absolute evaporation loss at 150° C. of less than about 4%. This disclosure also relates to a method for improving energy efficiency in a turbomachine lubricated with the low viscosity lubricating turbine oil. This disclosure further relates to a method for improving energy efficiency while maintaining or improving deposit control and lubricating oil additive solvency in a turbomachine lubricated with the low viscosity lubricating turbine oil. This disclosure yet further relates to a method for improving solubility, compatibility and dispersancy of polar additives in the low viscosity lubricating turbine oil.

  本公开涉及一种低粘度润滑涡轮机油，其成分包括作为主要成分的润滑油基础油和作为次要成分的一种或多种润滑油添加剂。该润滑涡轮机油在 40° C 时的运动粘度约为 16 cSt 至约 22 cSt，密度约为 0.8 g/ml 至约 0.9 g/ml，在 150° C 时的绝对蒸发损失小于约 4%。本公开还涉及一种在使用低粘度润滑涡轮机油润滑的涡轮机械中提高能效的方法。本公开还涉及一种在使用低粘度润滑涡轮机油润滑的涡轮机械中提高能效，同时保持或改善沉积物控制和润滑油添加剂溶解度的方法。本公开还进一步涉及一种改善极性添加剂在低粘度润滑涡轮机油中的溶解性、相容性和分散性的方法。
• Heat transfer fluids and methods of use
  申请人：ExxonMobil Research and Engineering Company

  公开号：US10712105B1

  公开（公告）日：2020-07-14

  This disclosure relates to heat transfer fluids for use in heat transfer systems. The heat transfer fluids comprise at least one non-aqueous dielectric heat transfer fluid. The non-aqueous dielectric heat transfer fluid has density (ρ), specific heat (cp), and dynamic viscosity (μ) properties. The heat transfer fluids have a normalized effectiveness factor (NEFfluid) as determined by the following equation: N ⁢ E ⁢ F fluid = DEF fluid DEF reference ; wherein DEFfluid is a dimensional effectiveness factor for the heat transfer fluid that is determined based on an equation designated in Table 1 below for a selected pump and a selected heat transfer circuit dominant flow regime; wherein DEFreference is a dimensional effectiveness factor for a reference fluid that is determined using the same equation designated in Table 1 for DEFfluid above for the same selected pump and the same selected heat transfer circuit dominant flow regime; and TABLE 1 (Heat Transfer Fluid and Reference Fluid) Selected Heat Transfer Circuit Flow Regime Transition Selected Pump Laminar (Blasius) Positive Displacement Pump ρ1 cp1 μ−1 ρ0.25 cp1 μ−0.25 Centrifugal Pump ρ0.19 cp1 μ−0.19 ρ0.04 cp1 μ−0.04 wherein the heat transfer fluid has a NEFfluid value equal to or greater than 1.0. This disclosure also provides a method for improving performance of a heat transfer system, a method for improving performance of an apparatus, and a method for selecting a heat transfer fluid for use in a heat transfer system. The heat transfer fluids and methods of this disclosure are applicable in situations where the heat transfer system is dominated by heat conveyance.

  本公开涉及用于传热系统的导热液体。导热流体包括至少一种非水介质导热流体。非水介质导热流体具有密度 (ρ)、比热 (cp) 和动态粘度 (μ) 特性。导热流体的归一化效能因子（NEFfluid）由下式确定： N E F 流体 = DEF 流体 DEF 参考 ; 其中，DEFfluid 是导热流体的尺寸效率系数，该系数是根据下表 1 中指定的方程，针对选定的泵和选定的传热回路主导流态确定的；其中，DEFreference 是参考流体的尺寸效率系数，该系数是根据上述表 1 中为 DEFfluid 指定的相同方程，针对相同的选定泵和相同的选定传热回路主导流态确定的；以及 表 1 (传热流体和参考流体） 选定热量 传热回路 流量调节 过渡 选定泵 层流 （布拉修斯） 正排量泵 ρ1 cp1 μ-1 ρ0.25 cp1 μ-0.25 离心泵 ρ0.19 cp1 μ-0.19 ρ0.04 cp1 μ-0.04 其中导热流体的 NEFfluid 值等于或大于 1.0。本公开还提供了一种提高传热系统性能的方法、一种提高设备性能的方法以及一种选择用于传热系统的导热流体的方法。本公开的导热液体和方法适用于传热系统以热传导为主的情况。
• Grease compositions with improved performance and methods of preparing and using the same
  申请人：ExxonMobil Research and Engineering Company

  公开号：US10774286B2

  公开（公告）日：2020-09-15

  The present disclosure provides a grease composition with improved water resistance and mechanical stability at high-temperatures, including: at least one base oil; a water insoluble thickener; and a low molecular weight thixotropic polyamide composition having molecular weight distribution characteristics meeting the requirement described by the relationship: ( A + D ) ( B + C ) ≥ 0.05 where A=the % mass of the polyamide composition with a molecular weight greater than 1700 AMU; B=the % mass of the polyamide composition with a molecular weight between 1100 AMU and 1300 AMU; C=the % mass of the polyamide composition with a molecular weight between 700 AMU and 1000 AMU; and D=the % mass of the polyamide composition with a molecular weight of 600 AMU or lower (determined by GPC). The grease composition of the present disclosure provides a less than 50 penetration point change as determined by ASTM-D7342, a less than 10 mg weight loss as determined by ASTM-D4170, or both.

  本公开提供了一种在高温下具有更好的耐水性和机械稳定性的润滑脂组合物，其中包括：至少一种基础油；一种水不溶性增稠剂；以及一种低分子量触变性聚酰胺组合物，其分子量分布特性符合所述关系的要求： ( A + D ) ( B + C ) ≥ 0.05 其中，A=分子量大于 1700 AMU 的聚酰胺组合物的质量百分比；B=分子量介于 1100 AMU 和 1300 AMU 之间的聚酰胺组合物的质量百分比；C=分子量介于 700 AMU 和 1000 AMU 之间的聚酰胺组合物的质量百分比；以及 D=分子量为 600 AMU 或更低的聚酰胺组合物的质量百分比（由 GPC 测定）。根据 ASTM-D7342 测定，本公开的润滑脂组合物的渗透点变化小于 50，根据 ASTM-D4170 测定，重量损失小于 10 毫克，或两者兼有。
• PROCESS AND COMPOSITIONS PROMOTING BIOLOGICAL EFFECTIVENESS OF EXOGENOUS CHEMICAL SUBSTANCES IN PLANTS
  申请人：MONSANTO COMPANY

  公开号：EP1001680A1

  公开（公告）日：2000-05-24
• EP1385926A1
  申请人：——

  公开号：EP1385926A1

  公开（公告）日：2004-02-04