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硝酸镧 | 10099-59-9

中文名称
硝酸镧
中文别名
——
英文名称
Lanthanum nitrate
英文别名
lanthanum(3+);trinitrate
硝酸镧化学式
CAS
10099-59-9;35099-99-1
化学式
LaN3O9
mdl
——
分子量
324.92
InChiKey
FYDKNKUEBJQCCN-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:
    40°C
  • 沸点:
    126°C
  • 密度:
    2.427[at 20℃]
  • 稳定性/保质期:
    1. 遇到可燃物着火时,能助长火势。与可燃物混合会易于着火,并会猛烈燃烧。高温分解时会释放出剧毒的氮氧化物气体。 2. 稳定性:稳定。 3. 禁配物:还原剂、易燃或可燃物。 4. 应避免接触的条件:受热。 5. 聚合危害:不发生聚合。 6. 分解产物:氮氧化物。

计算性质

  • 辛醇/水分配系数(LogP):
    -0.72
  • 重原子数:
    13
  • 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:
    189
  • 氢给体数:
    0
  • 氢受体数:
    9

ADMET

毒理性
  • 副作用
纤维原性 - 引发组织损伤和纤维化(疤痕形成)。
Fibrogenic - Inducing tissue injury and fibrosis (scarring).
来源:Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

安全信息

  • 危险等级:
    5.1
  • 危险品标志:
    Xi
  • 安全说明:
    S26,S39
  • 危险类别码:
    R41
  • 危险品运输编号:
    1477
  • WGK Germany:
    3
  • 包装等级:
    II
  • 危险类别:
    5.1

制备方法与用途

类别:氧化剂

毒性分级:中毒

急性毒性:

  • 口服(大鼠)LD50:4500 毫克/公斤
  • 腹腔(小鼠)LD50:309 毫克/公斤

爆炸物危险特性:与还原剂、硫、磷等混合,受热、撞击或摩擦时可能发生爆炸。

可燃性危险特性:与有机物、还原剂、易燃物硫、磷混合后可燃;燃烧时会产生有毒的氮氧化物烟雾。

储运特性:

  • 库房需通风、低温干燥
  • 装卸时应轻拿轻放
  • 须与有机物、还原剂、硫、磷等易燃物分开存放

灭火剂:使用雾状水或砂土进行灭火。

反应信息

  • 作为反应物:
    描述:
    参考文献:
    名称:
    KONNO, HIDETAKA;TOKITA, MASAHIRO;KITAZAKI, SATORU;FURUICHI, RYUSABURO, XEMEHN GIDZYUTSU, 40,(1989) N, S. 144-145
    摘要:
    DOI:
  • 作为产物:
    描述:
    参考文献:
    名称:
    Process for preparing dialkyl carbonates
    摘要:
    提供了一种工业上有利的制备二元碳酸酯的过程。该过程的特点在于,在存在至少一种稀土氧化物作为催化活性成分的催化剂的存在下,将碳酸烷和醇进行酯交换反应。根据该过程,由于催化剂的优异活性,酯交换反应进展迅速,并且在反应结束后可以轻松分离催化剂,从而实现高效的二元碳酸酯的分离和纯化。
    公开号:
    US05430170A1
  • 作为试剂:
    描述:
    氧化镧(III)硝酸硝酸镧 作用下, 以to give 400 cc of an aqueous lanthanum nitrate solution的产率得到硝酸镧
    参考文献:
    名称:
    Process for producing .alpha.,.beta.-unsaturated carboxylic acids or
    摘要:
    一种生产α,β-不饱和羧酸或其酯的方法,包括将α-羟基羧酸酰胺与固体酸催化剂独立地或与水一起接触,或与水和脂肪醇一起接触,或与脂肪醇一起接触。
    公开号:
    US04464539A1
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文献信息

  • Process for producing adamantane compound
    申请人:——
    公开号:US20030018226A1
    公开(公告)日:2003-01-23
    There is provided a process for producing adamantane and analogues thereof, namely a hydrocarbon having an adamantane structure which process comprises isomerizing a tricyclic saturated hydrocarbon having ten or more carbon atoms in the presence of a catalyst in which one or two or more metals selected from among the metals belonging to group VIII in the Periodic Table (group 8 to 10 in the new Periodic Table) are supported on zeolite by means of an ion exchange method. It is made possible by the above process to efficiently produce adamantane and analogues thereof in the presence of a solid catalyst without the use of hydrogen chloride.
    提供了一种生产金刚烷及其类似物的过程,即在催化剂的存在下异构化具有十个或更多碳原子的三环饱和碳氢化合物,该催化剂中的一种或两种或更多金属被选择从周期表中属于第VIII组金属(新周期表中的第8到10组)的金属通过离子交换方法支持在沸石上。通过上述过程,可以在无需使用氯化氢的情况下,在固体催化剂的存在下高效地生产金刚烷及其类似物。
  • Storage-stable solutions of accelerator systems
    申请人:Ciba-Geigy Corporation
    公开号:US05470896A1
    公开(公告)日:1995-11-28
    Solutions of accelerator systems comprising a binary system comprising a) 10 to 90% by weight of a salt of formula I [Me].sub.m.sup.x.sym. [R].sub.n.sup.y.crclbar. (I), wherein x and y are the respective number of charges and m and n are each a number 1, 2, 3 or 4, Me is a metal atom and R is the radical of an alcohol, phenol or thiophenol or of a carboxylic acid or thiocarboxylic acid, or 10 to 90% by weight of a salt of formula II [Me.sub.1 ].sub.m.sup.x.sym. [A].sub.n.sup.y.crclbar. (II), with an organic complex former containing one or more hetero atoms having free electron pairs, wherein Me.sub.1 is a metal atom or a group of the formula N(R.sub.1).sub.4, S(R.sub.1).sub.3 or P(R.sub.1).sub.4 wherein each R.sub.1 independently of the others is hydrogen, an unsubstituted or substituted C.sub.1 -C.sub.6 alkyl or aryl radical, A is any anion and x, y, m and n are as defined above, and b) 90 to 10% by weight of an organic solvent containing at least one --OH, --OR.sub.1, --COOH, --COOR.sub.1, --COR.sub.1 or --CON(R.sub.1).sub.2 group wherein R.sub.1 is hydrogen, an unsubstituted or substituted C.sub.1 -C.sub.6 alkyl or aryl radical, are storage-stable with respect to temperature and time and do not precipitate, and the use thereof, for example for accelerating the hardening of epoxy resin/amine combinations, the drying times being in the range of about 15 to 40 minutes.
    加速器系统的解决方案包括二元体系,其中包括a)重量占10%至90%的公式I [Me] .sub.m.sup.x.sym. [R] .sub.n.sup.y.crclbar.(I)的盐,其中x和y分别是电荷数,m和n是1、2、3或4的数字,Me是金属原子,R是醇,酚或硫酚或羧酸或硫代羧酸的基团,或重量占10%至90%的公式II [Me.sub.1] .sub.m.sup.x.sym. [A] .sub.n.sup.y.crclbar.(II)的盐,与含有一个或多个具有自由电子对的杂原子的有机络合剂,其中Me.sub.1是金属原子或公式N(R.sub.1).sub.4,S(R.sub.1).sub.3或P(R.sub.1).sub.4的基团,其中每个R.sub.1独立于其他人是氢,未取代或取代的C.sub.1-C.sub.6烷基或芳基基团,A是任何阴离子,x,y,m和n如上所定义,b)重量占90%至10%的有机溶剂,其中至少含有一个-OH,-OR.sub.1,-COOH,-COOR.sub.1,-COR.sub.1或-CON(R.sub.1).sub.2基团,其中R.sub.1是氢,未取代或取代的C.sub.1-C.sub.6烷基或芳基基团,对于温度和时间具有储存稳定性且不沉淀,其用途,例如用于加速环氧树脂/胺组合物的固化,干燥时间在约15至40分钟之间。
  • Method for the preparation of a rare earth oxide powder
    申请人:Shin-Etsu Chemical Co., Ltd.
    公开号:US05439656A1
    公开(公告)日:1995-08-08
    An improved method is proposed for the preparation of a powder of a rare earth oxide having good dispersibility containing no agglomerates of particles even without undertaking disintegration indispensable heretofore. The improved method comprises precipitation of a rare earth carbonate by the admixture of an aqueous solution of an inorganic rare earth salt with an aqueous solution of ammonium hydrogen carbonate in an excess amount over the stoichiometrically equivalent amount to give a slurry of the rare earth carbonate which is subjected to heating treatment in two steps each under specified conditions to effect aging of the carbonate precipitates. Characteristically, the aqueous slurry after the first aging treatment is subjected to an adjustment in three differently specified ways prior to the second aging treatment including, first, admixture of an additional amount of ammonium hydrogen carbonate, second, addition of water to decrease the solid content in the slurry and, third, addition of an inorganic acid to decrease the pH of the slurry.
    提出了一种改进方法,用于制备具有良好分散性的稀土氧化物粉末,即使不进行以前必不可少的分散处理,也不含颗粒团聚物。改进方法包括通过将无机稀土盐的水溶液与碳酸氢铵的水溶液混合,使稀土碳酸盐沉淀,超过化学计量当量的量,以得到稀土碳酸盐浆,然后在两个特定条件下进行两步加热处理,以使碳酸盐沉淀物老化。特别是,在第一次老化处理后,水浆在第二次老化处理之前以三种不同的方式进行调整,包括:第一,加入额外的碳酸氢铵;第二,加入水以减少水浆中的固体含量;第三,加入无机酸以降低水浆的pH值。
  • Process for producing .alpha.,.beta.-unsaturated carboxylic acid esters
    申请人:Mitsui Toatsu Chemicals, Incorporated
    公开号:US05268503A1
    公开(公告)日:1993-12-07
    .alpha.,.beta.-Unsaturated carboxylic acid esters are produced by a catalytic reaction of .alpha.,.beta.-unsaturated carboxylic acids and/or .alpha.,.beta.-unsaturated carboxylic acid amides with aliphatic alcohols in the presence of a solid acid catalyst comprising zirconium oxide, titanium oxide or a composite oxide thereof containing phosphorus.
    α,β-不饱和羧酸酯通过在含有锆氧化物、钛氧化物或磷的复合氧化物的固体酸催化剂存在下,将α,β-不饱和羧酸和/或α,β-不饱和羧酸酰胺与脂肪族醇进行催化反应而产生。
  • Catalyst for the synthesis of dimethyl carbonate from urea and methanol, preparation and use thereof
    申请人:Sun Yuhan
    公开号:US20060047136A1
    公开(公告)日:2006-03-02
    A catalyst for the preparation of dimethyl carbonate from urea and methanol having a composition on weight base of: active component of from 20 to 50 wt %, and carrier of from 80 to 50 wt %, and prepared by equal-volume spraying and impregnating method is disclosed. The method for the synthesis of dimethyl carbonate can be carried out in a catalytic rectification reactor, said method comprising: (1) dissolving urea in methanol to form a methanol solution of urea; and (2) feeding the methanol solution of urea and methanol counter-currently into the reaction zone, wherein the reaction is carried out at conditions including reaction temperature of from 120° C. to 250° C., reaction pressure of from 0.1 MPa to 5 MPa, kettle bottom temperature of from 70° C. to 210° C., stripping section temperature of from 70° C. to 250° C., rectifying section temperature of from 70° C. to 280° C., and reflux ratio of from 1:1 to 20:1. The preparation of the catalyst according to the present invention is simple and has good repeatability, and the catalyst could further enhance the yield of DMC as well as conversion of urea in the catalytic rectification reactor.
    本发明公开了一种从尿素和甲醇制备二甲碳酸酯的催化剂,其重量比为:活性成分为20wt%至50wt%,载体为80wt%至50wt%,并通过等体积喷涂和浸渍法制备。二甲碳酸酯的合成方法可以在催化精馏反应器中进行,该方法包括:(1)将尿素溶解在甲醇中形成甲醇尿素溶液;(2)将甲醇尿素溶液和甲醇逆流进入反应区,反应在反应温度为120℃至250℃,反应压力为0.1MPa至5MPa,釜底温度为70℃至210℃,脱气段温度为70℃至250℃,精馏段温度为70℃至280℃,回流比为1:1至20:1的条件下进行。本发明所述催化剂的制备简单,重复性好,并且可以进一步提高催化精馏反应器中DMC的产量以及尿素的转化率。
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