摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

碲化汞 | 12068-90-5

中文名称
碲化汞
中文别名
硒化汞(II);锑化汞
英文名称
Mercury;tellurium
英文别名
mercury;tellurium
碲化汞化学式
CAS
12068-90-5
化学式
HgTe
mdl
——
分子量
328.2
InChiKey
VCEXCCILEWFFBG-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:
    673℃
  • 密度:
    8.63
  • 暴露限值:
    ACGIH: TWA 0.025 mg/m3; TWA 0.1 mg/m3 (Skin)NIOSH: IDLH 10 mg/m3; IDLH 25 mg/m3; TWA 0.05 mg/m3; TWA 0.1 mg/m3; Ceiling 0.1 mg/m3
  • 稳定性/保质期:
    在常温常压下保持稳定,应避免与氧化物接触。

计算性质

  • 辛醇/水分配系数(LogP):
    -0.38
  • 重原子数:
    2
  • 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:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

ADMET

代谢
汞主要通过摄入和吸入被吸收,然后通过血液流布全身,其中一部分会与血红蛋白上的巯基团结合。汞可以经过氧化转化为汞离子,这一过程通过过氧化氢酶-过氧化氢途径进行。汞原子能够扩散进入过氧化氢酶酶裂中,到达含有血红素环的活性位点。由于过氧化氢酶-过氧化氢途径普遍存在,氧化最可能在所有组织中发生。氧化后,汞倾向于在肾脏中积累。汞主要通过呼出和粪便排出体外。(A6, L7)
Mercury is absorbed mainly via ingestion and inhalation, then distributed throughout the body via the bloodstream, where a portion binds to sulfhydryl groups on haemoglobin. Mercury can undergo oxidation to mercuric mercury, which takes place via the catalase-hydrogen peroxide pathway. The mercury atom is able to diffuse down the cleft in the catalase enzyme to reach the active site where the heme ring is located. Oxidation most likely occurs in all tissue, as the catalase hydrogen peroxide pathway is ubiquitous. Following oxidation, mercury tends to accumulate in the kidneys. Mercury is excreted mainly by exhalation and in the faeces. (A6, L7)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 毒性总结
汞离子与蛋白质的巯基或硫醇基团的高亲和力结合被认为是汞活性的主要机制。通过改变细胞内巯基状态,汞可以促进氧化应激、脂质过氧化、线粒体功能障碍和血红素代谢的变化。已知汞能与微囊和线粒体酶结合,导致细胞损伤和死亡。例如,汞能抑制水通道蛋白,阻止细胞膜上的水流。它还抑制LCK蛋白,导致T细胞信号传导减少和免疫系统抑制。汞还被认为是通过作用于突触后神经细胞膜来抑制神经兴奋性。它还通过抑制蛋白激酶C和碱性磷酸酶来影响神经系统,这会损害大脑微血管的形成和功能,并改变血脑屏障。汞还能产生自身免疫反应,可能是通过修饰主要组织相容性复合体(MHC)II类分子、自身肽、T细胞受体或细胞表面粘附分子。
High-affinity binding of the divalent mercuric ion to thiol or sulfhydryl groups of proteins is believed to be the major mechanism for the activity of mercury. Through alterations in intracellular thiol status, mercury can promote oxidative stress, lipid peroxidation, mitochondrial dysfunction, and changes in heme metabolism. Mercury is known to bind to microsomal and mitochondrial enzymes, resulting in cell injury and death. For example, mercury is known to inhibit aquaporins, halting water flow across the cell membrane. It also inhibits the protein LCK, which causes decreased T-cell signalling and immune system depression. Mercury is also believed to inhibit neuronal excitability by acting on the postsynaptic neuronal membrane. It also affects the nervous system by inhibiting protein kinase C and alkaline phosphatase, which impairs brain microvascular formation and function, as well as alters the blood-brain barrier. Mercury also produces an autoimmune response, likely by modification of major histocompatibility complex (MHC) class II molecules, self peptides, T-cell receptors, or cell-surface adhesion molecules. (L7, A8, A25, A26)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 致癌物分类
3, 其对人类致癌性无法分类。
3, not classifiable as to its carcinogenicity to humans. (L135)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 健康影响
水银主要影响神经系统。接触高水平的金属汞、无机汞或有机汞可能导致大脑、肾脏和发育中的胎儿永久性损害。对大脑功能的影响可能导致易怒、害羞、震颤、视力或听力改变以及记忆问题。儿童的水银中毒,即手足粉红病,特点是手和脚疼痛和粉红色变色。水银中毒还可能引起亨特-拉塞尔综合症和熊本病。
Mercury mainly affects the nervous system. Exposure to high levels of metallic, inorganic, or organic mercury can permanently damage the brain, kidneys, and developing fetus. Effects on brain functioning may result in irritability, shyness, tremors, changes in vision or hearing, and memory problems. Acrodynia, a type of mercury poisoning in children, is characterized by pain and pink discoloration of the hands and feet. Mercury poisoning can also cause Hunter-Russell syndrome and Minamata disease. (L7)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 暴露途径
口服(L7);吸入(L7);皮肤给药(L7)
Oral (L7) ; inhalation (L7); dermal (L7)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 症状
常见症状包括周围神经病变(表现为感觉异常、瘙痒、灼热或疼痛),皮肤变色(红润的面颊、指尖和脚趾),水肿(肿胀)以及脱屑(死皮层层脱落)。(A5)
Common symptoms include peripheral neuropathy (presenting as paresthesia or itching, burning or pain), skin discoloration (pink cheeks, fingertips and toes), edema (swelling), and desquamation (dead skin peels off in layers). (A5)
来源:Toxin and Toxin Target Database (T3DB)

安全信息

  • TSCA:
    Yes
  • 危险等级:
    6.1
  • 危险品标志:
    T+,N
  • 安全说明:
    S13,S28,S45,S60,S61
  • 危险类别码:
    R26/27/28
  • 危险品运输编号:
    UN 2025
  • 包装等级:
    II
  • 危险类别:
    6.1

SDS

SDS:ff056193383b6353d49cc6edb4f22a80
查看

制备方法与用途

合成制备方法

采用区域熔炼和布里奇曼法制备。

将Hg和Te按化学计量比放入密闭的高压容器中,加热使其反应。随后在纯N2气流中进行升华提纯,可得到较为纯净的HgTe产品。

用途

主要用于制作红外探测器。

反应信息

  • 作为反应物:
    描述:
    参考文献:
    名称:
    TOMASHIK, V. N.;VENGEL, P. F.;MIZETSKAYA, I. B., IZV. AN CCCP. NEORGAN. MATER., 23,(1987) N 10, 1646-1648
    摘要:
    DOI:
点击查看最新优质反应信息

文献信息

  • TOMASHIK, V. N.;VENGEL, P. F.;MIZETSKAYA, I. B., IZV. AN CCCP. NEORGAN. MATER., 23,(1987) N 10, 1646-1648
    作者:TOMASHIK, V. N.、VENGEL, P. F.、MIZETSKAYA, I. B.
    DOI:——
    日期:——
查看更多