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钨酸铅 | 7759-01-5

中文名称
钨酸铅
中文别名
——
英文名称
lead(II) tungstate
英文别名
lead tungstate;dioxido(dioxo)tungsten;lead(2+)
钨酸铅化学式
CAS
7759-01-5
化学式
O4W*Pb
mdl
——
分子量
455.048
InChiKey
NKTZYSOLHFIEMF-UHFFFAOYSA-N
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:
    1130 °C
  • 密度:
    8.235 g/cm3
  • 物理描述:
    Lead tungstate is a white to pale yellow powdery solid. Sinks in water. (USCG, 1999)
  • 颜色/状态:
    White powder
  • 溶解度:
    0.03 g/100 g water at 20 °C
  • 稳定性/保质期:
    单斜晶系的钨酸铅相对密度为11.23。它能在冷水中溶解约0.03克/100毫升水,并且会在酸中分解,但不溶于乙醇。

计算性质

  • 辛醇/水分配系数(LogP):
    -3.0
  • 重原子数:
    6
  • 可旋转键数:
    0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    80.3
  • 氢给体数:
    0
  • 氢受体数:
    4

ADMET

代谢
铅通过吸入、口服和皮肤接触被吸收,然后主要分布到骨骼和红细胞中。在血液中,铅可能被发现与血清白蛋白或金属结合蛋白金属lothionein结合。有机铅通过细胞色素P-450酶代谢,而无机铅则与δ-氨基酮酸脱水酶形成复合物。铅主要通过尿液和粪便排出。
Lead is absorbed following inhalation, oral, and dermal exposure. It is then distributed mainly to the bones and red blood cells. In the blood lead may be found bound to serum albumin or the metal-binding protein metallothionein. Organic lead is metabolized by cytochrome P-450 enzymes, whereas inorganic lead forms complexes with delta-aminolevulinic acid dehydratase. Lead is excreted mainly in the urine and faeces. (L136)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 毒性总结
鉴定和使用:铅钨酸是一种白色或淡黄色粉末。它被用作颜料。人类接触和毒性:没有可用的数据。动物研究:没有可用的数据。
IDENTIFICATION AND USE: Lead tungstate is a white or pale yellow powder. It is used as a pigment. HUMAN EXPOSURE AND TOXICITY: There are no data available. ANIMAL STUDIES: There are no data available.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 毒性总结
铅模仿其他生物学上重要的金属,如锌、钙和铁,作为许多它们各自酶促反应的辅因子与之竞争。例如,铅已被证明能竞争性地抑制钙与钙调蛋白的结合,干扰神经递质的释放。它对NMDA受体和蛋白激酶C表现出类似的竞争性抑制,这损害了脑微血管的形成和功能,同时也改变了血脑屏障。铅还通过阻碍多巴胺合成的调节和阻止乙酰胆碱的诱发释放来影响神经系统。然而,铅的主要作用机制是通过抑制δ-氨基-γ-酮戊酸脱水酶,这是一种在血红素生物合成中至关重要的酶,而血红素是血红蛋白必不可少的辅因子。(T4, A20, A22, L136)
Lead mimics other biologically important metals, such as zinc, calcium, and iron, competing as cofactors for many of their respective enzymatic reactions. For example, lead has been shown to competitively inhibit calcium's binding of calmodulin, interferring with neurotransmitter release. It exhibits similar competitive inhibition at the NMDA receptor and protein kinase C, which impairs brain microvascular formation and function, as well as alters the blood-brain barrier. Lead also affects the nervous system by impairing regulation of dopamine synthesis and blocking evoked release of acetylcholine. However, it's main mechanism of action occurs by inhibiting delta-aminolevulinic acid dehydratase, an enzyme vital in the biosynthesis of heme, which is a necesssary cofactor of hemoglobin. (T4, A20, A22, L136)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 致癌性证据
无机铅化合物的致癌性在人类中的证据有限。...在实验动物中,有足够的证据表明无机铅化合物具有致癌性。在实验动物中,有足够的证据表明醋酸铅、亚醋酸铅、铬酸铅和磷酸铅具有致癌性。在实验动物中,对于氧化铅和砷酸铅的致癌性证据不足。...在实验动物中,对于铅粉的致癌性证据不足。总体评估无机铅化合物可能对人类具有致癌性(2A组)。/无机铅化合物/
There is limited evidence in humans for the carcinogenicity of inorganic lead compounds. ... There is sufficient evidence in experimental animals for the carcinogenicity of inorganic lead compounds. There is sufficient evidence in experimental animals for the carcinogenicity of lead acetate, lead subacetate, lead chromate, and lead phosphate. There is inadequate evidence in experimental animals for the carcinogenicity of lead oxide and lead arsenate. ... There is inadequate evidence in experimental animals for the carcinogenicity of lead powder. Overall evaluation Inorganic lead compounds are probably carcinogenic to humans (Group 2A). /Inorganic lead compounds/
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 致癌性证据
分类:B2;可能的人类致癌物。分类依据:充分的动物证据。十项大鼠生物测试和一项小鼠测试显示,通过饮食和皮下接触几种可溶性铅盐,肾肿瘤统计学上显著增加。动物测试在多个实验室、多种大鼠品系中提供了可重复的结果,并有部分多肿瘤位点的证据。短期研究表明铅影响基因表达。人类致癌性数据不足。人类致癌性数据:不足。动物致癌性数据:充分。/基于以前分类系统的铅和化合物(无机)/
CLASSIFICATION: B2; probable human carcinogen. BASIS FOR CLASSIFICATION: Sufficient animal evidence. Ten rat bioassays and one mouse assay have shown statisticlly significant increases in renal tumors with dietary and subcutaneous exposure to several soluble lead salts. Animal assays provide reproducible results in several laboratories, in multiple rat strains with some evidence of multiple tumor sites. Short term studies show that lead affects gene expression. Human evidence is inadequate. HUMAN CARCINOGENICITY DATA: Inadequate. ANIMAL CARCINOGENICITY DATA: Sufficient. /Lead and Compounds (inorganic), Based on former classification system/
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 致癌性证据
A3; 对动物已确认是致癌物,但对人类的相关性未知。/铅和铅的无机化合物,如 Pb/
A3; Confirmed animal carcinogen with unknown relevance to humans. /Lead and and inorganic compounds, as Pb/
来源:Hazardous Substances Data Bank (HSDB)

安全信息

  • 危险品标志:
    T,N
  • 危险类别码:
    R61,R33,R20/22,R50/53,R62
  • 危险品运输编号:
    UN 2291 6.1/PG 3
  • WGK Germany:
    3
  • 安全说明:
    S45,S53,S60,S61
  • 储存条件:
    | 室温 |

SDS

SDS:323450695dfaf5d70e89766938784831
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制备方法与用途

制备方法:钨粉与氧化铅(Ⅱ)在高温下反应,或者钨粉与PbO2加热反应可得到所需物质。

合成制备方法:同样是将钨粉与氧化铅(Ⅱ)在高温下反应,或者与PbO2加热反应即可获得。

用途简介:暂无相关信息。

反应信息

  • 作为反应物:
    描述:
    钨酸铅硝酸 作用下, 反应 50.0h, 生成 tungsten(VI) oxide
    参考文献:
    名称:
    溶液处理的蛋黄壳形WO 3 / BiVO 4异质结光电电极可有效分解太阳能†
    摘要:
    WO 3 / BiVO 4异质结被认为是用于光电化学(PEC)水分解的最有希望的光阳极材料之一。为了提高太阳水分解效率,使光电极中的太阳光吸收效率最大化仍然是关键问题。在这里,为了满足上述需求,我们通过溶液加工设计和制造了由卵黄壳结构的纳米颗粒组成的WO 3膜。将带隙较小的BiVO 4薄层涂覆到WO 3的表面和内部外壳,在颗粒和外壳之间提供合理设计的内部空间,以实现更好的电解液可及性。卵黄壳状的PEC光电阳极不仅引起有效的光吸收,而且由于扩大了接触面积,在BiVO 4的电子收集中也起着重要的作用。通过将紫外-可见(UV-vis)吸收光谱与镜面反射和漫反射技术相结合,研究了结构与PEC的性能关系,这表明蛋黄-壳形结构比常规的中空或致密膜结构具有更好的光吸收能力。纯卵黄壳(Y-WO 3 / BiVO 4)光电阳极的光电流密度为2.3 mA cm -2在AM 1.5照度(100 mW cm -2)下以1
    DOI:
    10.1039/c7ta08452h
  • 作为产物:
    描述:
    以 neat (no solvent) 为溶剂, 生成 钨酸铅
    参考文献:
    名称:
    PbMSeO6 (M = Mo and W): New quaternary mixed metal selenites with asymmetric cationic coordination environments
    摘要:
    合成了两种新的等结构混合金属硒酸盐 PbMSeO6(M = Mo6+ 或 W6+),其仅由二级贾恩-泰勒(SOJT)失配阳离子组成,采用标准的固相反应技术,以 PbO、SeO2 和 MoO3(或 WO3)作为试剂。通过单晶和粉末 X 射线衍射确定了所报道材料的结构。该材料显示出三维框架结构,包含角共享的 MO6 八面体链,由 SeO3 和 PbO8 多面体连接。所有成分阳离子(M6+、Se4+ 和 Pb2+)都处于由于二级贾恩-泰勒(SOJT)效应而导致的失配环境中。Mo6+ 阳离子经历了朝向边缘的 C2 型八面体内失配,而 Se4+ 和 Pb2+ 阳离子则处于由于其孤对电子而导致的非对称配位环境中。SeO3 多面体对 Mo6+ 八面体内失配的方向有重要影响。还提供了红外光谱、热重分析、离心失配的幅度和偶极矩计算的结果。晶体数据:PbMoSeO6, triclinic,空间群 P-1(编号 2),参数 a = 6.8944(6) Å,b = 7.2219(6) Å,c = 10.8294(9) Å,α = 99.751(2)°,β = 99.996(2)°,γ = 90.041(2)°,体积 V = 523.09(8) ų,Z = 2;PbWSeO6,triclinic,空间群 P-1(编号 2),参数 a = 6.8689(2) Å,b = 7.2398(2) Å,c = 10.9037(3) Å,α = 99.699(4)°,β = 100.348(3)°,γ = 90.139(4)°,体积 V = 525.50(3) ų,Z = 2。
    DOI:
    10.1039/c2dt11977c
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文献信息

  • Synthesis of Tungstate Thin Films and Their Optical Properties
    作者:Nobuhiro Saito、Akihiko Kudo、Tadayoshi Sakata
    DOI:10.1246/bcsj.69.1241
    日期:1996.5
    synthetic method of tungstate thin films (CaWO4, MgWO4, PbWO4, ZnWO4) was developed. The absorption and luminescence spectra of tungstate thin films synthesized on quartz substrates were measured; the optical properties were also studied. It was found that CaWO4 has Eg = 5.4 eV of a direct transition nature. Tungstate thin films were strongly luminescent when irradiated with UV-light. Excitation at around
    开发了一种新的钨酸盐薄膜(CaWO4、MgWO4、PbWO4、ZnWO4)的合成方法。测量了在石英衬底上合成的钨酸盐薄膜的吸收光谱和发光光谱;还研究了光学特性。发现 CaWO4 具有直接过渡性质的 Eg = 5.4 eV。钨酸盐薄膜在紫外线照射下会发出强烈的光。290 nm 附近的激发被解释为单线态-三线态跃迁。
  • Thermogravimetric investigations on the mechanism of decomposition of Pb compounds on a tungsten surface
    作者:Daniele M Santos、Pedro O Luccas、Joaquim A Nóbrega、Éder T.G Cavalheiro
    DOI:10.1016/s0040-6031(00)00578-5
    日期:2000.11
    Abstract Tungsten coils are used as electrothermal atomizers in atomic absorption spectrometry (ETA-W), but despite successful applications the atomization mechanism is still obscure. The use of the thermogravimetry (TG) can bring some information on decomposition pathways for atom formation, simulating the drying and pyrolysis steps employed in typical heating program cycles. Thermogravimetric curves
    摘要 钨线圈在原子吸收光谱法(ETA-W)中被用作电热雾化器,但尽管应用成功,其雾化机制仍不清楚。热重法 (TG) 的使用可以提供有关原子形成分解途径的一些信息,模拟典型加热程序循环中采用的干燥和热解步骤。使用实验室制造的钨样品架在 90% Ar 和 10% H 2 中使用和不使用化学改性剂(例如抗坏血酸、草酸、酒石酸和葡萄糖)或干扰物(例如 NaNO 3 )获得铅盐的热重曲线ETA-W 中通常使用的气氛。热解步骤的中间体和残留物通过 X 射线衍射表征。这些数据允许更好地建立 ETA-W 的参数,并有助于找到适当的条件来减少干扰。结果表明,一般的分解路线是加热形成 PbO,吹扫气体中的 H 2 将氧化物还原,然后 Pb 挥发。
  • Efficient <i>Z</i>-scheme charge separation in WO<sub>3</sub>/PbWO<sub>4</sub> for the removal of organic pollutants
    作者:Yi Zheng、Yiliang Shao、Xingzhi Jin、Min Shu、Longxiao Zhang、Chunlei Li
    DOI:10.1039/d0nj04180g
    日期:——

    The contact quality of a composite is an important factor for the transfer and separation of photogenerated carriers.

    复合材料的接触质量是光生载流子传输和分离的重要因素。
  • Antimony(III)-Doped PbWO<sub>4</sub> Crystals with Enhanced Photoluminescence via a Shape-Controlled Sonochemical Route
    作者:Jun Geng、Dujuan Lu、Jun-Jie Zhu、Hong-Yuan Chen
    DOI:10.1021/jp057562v
    日期:2006.7.1
    Sb(III)-doped lead tungstate single crystals with controlled shapes and enhanced green emission have been synthesized via a facile, Pluronic P123 (EO(20)PO(70)EO(20))-assisted, sonochemical method. The surfactant Pluronic P123 was found to play a crucial role in the morphology control of the final products. The growth process was investigated by carefully following time-dependent experiments, and the
    通过简便的Pluronic P123(EO(20)PO(70)EO(20))辅助声波化学法合成了具有受控形状和增强的绿色发射的Sb(III)掺杂钨酸铅单晶。发现表面活性剂Pluronic P123在最终产物的形态控制中起关键作用。通过仔细地遵循时间相关的实验来研究生长过程,并提出了伴随奥斯特瓦尔德熟化的定向附着过程以用于可能的形成机理。研究了掺杂的PbWO(4)的光学性质,如拉曼光谱和PL光谱。与未掺杂的PbWO(4)相比,在所需的Sb掺杂浓度下具有不同形态的掺杂PbWO(4)样品的室温光致发光显示出大大增强的发光强度。
  • TeO2–WO3 Glasses: Infrared, XPS and XANES Structural Characterizations
    作者:P. Charton、L. Gengembre、P. Armand
    DOI:10.1006/jssc.2002.9707
    日期:2002.10
    Transparent (1−x)TeO2–xWO3 glasses with 0≤x≤0.325 mol were synthesized by the fast quenching technique. Several complementary techniques as infrared, X-ray photoelectron and X-ray absorption spectroscopies were used to approach the structure of these tungsten oxide–tellurite glasses. Special attention was paid to the oxidation state and the coordination state of tungsten atoms. The structural results show that
    透明(1- X)的TeO 2 - X WO 3眼镜0≤ X ≤0.325摩尔由快速淬火技术合成。几种辅助技术,例如红外,X射线光电子和X射线吸收光谱学,被用于研究这些氧化钨-碲酸盐玻璃的结构。特别注意钨原子的氧化态和配位态。结构结果表明(1- x)TeO 2 - x WO 3玻璃具有特征性的碲环境,其化学成分不同,而钨离子始终采用八面体结构。
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