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lead(II) stearate | 7428-48-0

中文名称
——
中文别名
——
英文名称
lead(II) stearate
英文别名
lead(II) octadecanoate;lead octadecanoate;lead stearate;Pb(octadecanoate)2;NLS;octadecanoic acid, lead salt;lead(2+);octadecanoate
lead(II) stearate化学式
CAS
7428-48-0
化学式
2C18H35O2*Pb
mdl
——
分子量
774.149
InChiKey
LDVQENLWTVYIDQ-UHFFFAOYSA-M
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    125°C
  • 密度:
    1.4000
  • 稳定性/保质期:
    如果按照规格使用和储存,则不会分解。

计算性质

  • 辛醇/水分配系数(LogP):
    4.62
  • 重原子数:
    21
  • 可旋转键数:
    15
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.94
  • 拓扑面积:
    40.1
  • 氢给体数:
    0
  • 氢受体数:
    2

安全信息

  • 危险类别码:
    R20/22
  • 危险品运输编号:
    3282
  • 海关编码:
    2915709000
  • 包装等级:
    III
  • 危险类别:
    6.1(b)
  • 储存条件:
    密封在阴凉干燥的环境中。

SDS

SDS:8e33746c2af34fc5c34b751a12952629
查看

制备方法与用途

类别:有毒物质
毒性分级:低毒
急性毒性:

  • 大鼠口服 LD50:12428 毫克/公斤
  • 小鼠口服 LD50:10428 毫克/公斤

可燃性危险特性:可燃,火场排出含铅的辛辣刺激烟雾
储运特性:库房低温、通风、干燥
灭火剂:水、二氧化碳、干粉、砂土
职业标准:时间加权平均容许浓度(TWA)0.1 毫克/立方米

反应信息

  • 作为反应物:
    描述:
    lead(II) stearate 以 solid 为溶剂, 生成 lead(II) oxide
    参考文献:
    名称:
    一些偶数链状铅(II)羧酸盐热分解的动力学和反应机理
    摘要:
    摘要 利用 Freeman 和 Carroll 的改进方法,在 298-1073 K 的温度范围内对十二酸铅 (II)、十四酸铅和十八酸铅的热分解动力学进行了热重分析。热重曲线表明,虽然十八酸一步分解为氧化铅,但十二酸和十四酸分两阶段分解为氧化铅。动力学结果表明,除了十二酸的第二步分解(几乎是统一的)外,所有反应都是零级的。提供了二氧化碳解吸的活化能值和被确定为酮的降解中间体形成的扩散控制速率。提出了初步机制来解释这些化合物的降解途径。
    DOI:
    10.1016/0040-6031(81)80105-0
  • 作为产物:
    描述:
    lead(II) acetate trihydrate 、 硬脂酸 为溶剂, 以69%的产率得到lead(II) stearate
    参考文献:
    名称:
    The characterisation of lead fatty acid soaps in ‘protrusions’ in aged traditional oil paint
    摘要:
    Lead(II) carboxylate soaps of two fatty acids, palmitic (C15H31COOH) and stearic acids (C17H35COOH), and a dicarboxylic acid, azelaic acid (HOOCC7H14COOH), have been synthesised and characterised by FTIR spectroscopy. These acids are all encountered in aged traditional oil paint, the azelaic acid resulting from the oxidative degradation of unsaturated fatty acids in the oil. Lead(II) azelate synthesised by hydrothermal methods was characterised by single crystal structure determination. This has a 3D polymeric structure with lead(II) ions linked by carboxylate bridges to form an infinite stack of (PbO4)(n) units. These layers are connected to adjacent layers by an infinite number of parallel C(CH2)(7)C chains arranged perpendicularly to the stacks. The lead(II) ions display an unusual 7-fold coordination. The first direct evidence that the 'protrusions' encountered in aged traditional lead-containing oil paints contain lead soaps is reported. Their mechanism of formation is discussed. (C) 2003 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/s0277-5387(03)00461-3
  • 作为试剂:
    描述:
    苹果酯氯苯 在 magnesium sulfate 、 盐酸lead(II) stearate 作用下, 以 乙醚 为溶剂, 反应 1.0h, 生成 2-(2-(chloromethyl)-1,3-dioxolan-2-yl)-1,1-diphenylethan-1-ol
    参考文献:
    名称:
    一种1-氯-1-羟基-4,4-二苯基丁-2-酮的合成方法
    摘要:
    本发明公开了一种1?氯?1?羟基?4,4?二苯基丁?2?酮的合成方法,属于有机合成技术领域。本发明针对目前1?氯?1?羟基?4,4?二苯基丁?2?酮的合成路线长,总收率很低不足21%,且用到叔丁基锂,比较危险,不易于放大生产,且不易提纯,本发明提供了一种收率高,且比较安全的1?氯?1?羟基?4,4?二苯基丁?2?酮的合成方法。
    公开号:
    CN105753679A
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文献信息

  • Coordination geometry of lead carboxylates – spectroscopic and crystallographic evidence
    作者:Jaclyn Catalano、Anna Murphy、Yao Yao、Glenn P. A. Yap、Nicholas Zumbulyadis、Silvia A. Centeno、Cecil Dybowski
    DOI:10.1039/c4dt03075c
    日期:——

    Spectroscopic and crystallographic data show lead carboxylate coordination is chain length dependent, shorter-chains (C6–C8) are hemidirected and longer-chains (C9–C18) are holodirected.

    光谱学和晶体学数据显示,铅羧酸盐配位取决于链长,较短的链(C6-C8)是半定向的,而较长的链(C9-C18)是全定向的。
  • Characterisation of metal carboxylates by Raman and infrared spectroscopy in works of art
    作者:Vanessa Otero、Diogo Sanches、Cristina Montagner、Márcia Vilarigues、Leslie Carlyle、João A. Lopes、Maria J. Melo
    DOI:10.1002/jrs.4520
    日期:2014.11
    paintings were used, including lead, zinc, calcium, cadmium, copper and manganese. The fatty acids selected were the saturated acids palmitic (C16 : 0) and stearic (C18 : 0) and the polyunsaturated oleic acid (C18 : 1). Azelaic acid (C9 diacid), a product resulting from autoxidation of polyunsaturated acids, was also included. Metal carboxylates were characterised by Raman and IR spectroscopy, and their
    这项工作介绍了 μ-拉曼和 μ-傅立叶变换红外 (IR) 光谱的互补用途,用于检测特定碳链和阳离子,以识别油漆微量样品中的金属羧酸盐。当游离脂肪酸与金属阳离子反应时,金属羧酸盐(金属皂)自然形成,也可能作为添加剂或降解产物被发现。合成了 22 种金属羧酸盐,并将它们的光谱组装在参考数据库中。使用了油画中常见的阳离子金属盐,包括铅、锌、钙、镉、铜和锰。所选择的脂肪酸是饱和酸棕榈酸 (C16:0) 和硬脂酸 (C18:0) 以及多不饱和油酸 (C18:1)。壬二酸(C9 二酸),多不饱和酸自氧化产生的产物,也包括在内。通过拉曼光谱和红外光谱对金属羧酸盐进行表征,并通过 X 射线衍射证实了它们的结构。事实证明,拉曼光谱和红外光谱是全面鉴定复杂老化涂料中金属羧酸盐的互补技术。拉曼能够区分 C-C 拉伸区域(1120-1040 cm-1)中的碳链长度,IR 区分 COO-拉伸吸收区域(1650-1380
  • Lead(<scp>ii</scp>) soaps: crystal structures, polymorphism, and solid and liquid mesophases
    作者:F. J. Martínez-Casado、M. Ramos-Riesco、J. A. Rodríguez-Cheda、M. I. Redondo-Yélamos、L. Garrido、A. Fernández-Martínez、J. García-Barriocanal、I. da Silva、M. Durán-Olivencia、A. Poulain
    DOI:10.1039/c7cp02351k
    日期:——
    phases and mesophases. The crystal structures at room temperature of all of the members of the series are now solved, showing the existence of two polymorphic forms in the room temperature crystal phase, different to short and long-chain members. Only nonanoate and decanoate present both forms, and this polymorphism is proven to be monotropic. At higher temperature, these compounds present a solid mesophase
    链烷酸铅(II)系列或肥皂的长链成员,从辛酸酯到十八烷酸酯,已通过XRD,PDF分析,DSC,FTIR,ssNMR和其他技术在所有阶段和中间阶段进行了全面表征。现在解决了该系列所有成员在室温下的晶体结构,表明在室温晶体相中存在两种多晶型,不同于短链和长链成员。只有壬酸和癸酸两种形式都存在,并且该多态性被证明是单向的。在更高的温度下,这些化合物呈现出固态中间相(定义为旋转体),液晶相和液相,所有这些均具有相似的局部排列。由于一些铅(二)肥皂在油画中作为降解化合物出现,解决的铅(II)肥皂晶体结构现在可以用作指纹图谱,以进行X射线衍射检测。这些化合物的对分布函数分析在不同成员的相同相和中间相中非常相似,显示了相同的短程顺序。该观察结果表明,该技术还可以用于检测无序相或绘画形成初期的这些化合物。
  • Synthesis of biodiesel via homogeneous Lewis acid catalyst
    作者:M. Di Serio、R. Tesser、M. Dimiccoli、F. Cammarota、M. Nastasi、E. Santacesaria
    DOI:10.1016/j.molcata.2005.05.041
    日期:2005.9
    Nowadays, most biodiesel (fatty acids methyl esters, FAME) is produced by the transesterification of triglycerides (TG) of refined/edible type oils using methanol and an homogeneous alkaline catalyst. However, production costs are still rather high compared with the ones of petroleum-based diesel fuel. To lower costs and make biodiesel competitive less-expensive feedstocks such as waste fats or non-edible type oils could be used. The use of homogeneous alkaline catalysts in the transesterification of such types of fats and oils poses great difficulties due to the presence of large amounts of free fatty acids (FFA). This paper studies the use of carboxylic salts as a possible alternative, because these catalysts are active also in the presence of high FFA concentrations.The most active catalyst (Cd, Mn, Pb, Zn carboxylic salts) have been individuated and a correlation of the activities with the cation acidity has been found. (c) 2005 Elsevier B.V. All rights reserved.
  • Preparation of Metal Carboxylates and Their Stabilizing Performance under Intense High-Pressure Shear Treatment
    作者:R. M. Akhmetkhanov、S. V. Kolesov、R. G. Kadyrov、A. Yu. Karmilov、G. E. Zaikov
    DOI:10.1023/b:rjac.0000038827.10443.63
    日期:2004.5
    Solid-phase synthesis of certain metal carboxylates and their effect on stabilization of polyvinyl chloride under intense high-pressure shear treatment were studied.
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