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硫化硒 | 7446-34-6

中文名称
硫化硒
中文别名
——
英文名称
selenium sulphide
英文别名
selenium sulfide
硫化硒化学式
CAS
7446-34-6
化学式
SSe
mdl
——
分子量
111.026
InChiKey
VIDTVPHHDGRGAF-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:
    111 ºC
  • 沸点:
    118-119 ºC (DEC.)
  • 密度:
    3.056
  • 物理描述:
    Selenium sulfide appears as orange-yellow tablets or powder. Has a faint odor. (NTP, 1992)
  • 颜色/状态:
    Orange-yellow tablets or powder
  • 气味:
    Odorless
  • 溶解度:
    less than 1 mg/mL at 70° F (NTP, 1992)
  • 分解:
    When heated to decomposition it emits very toxic fumes of /sulfur oxides and selenium/.

计算性质

  • 辛醇/水分配系数(LogP):
    0.27
  • 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:
    32.1
  • 氢给体数:
    0
  • 氢受体数:
    1

ADMET

代谢
硒可能通过吸入和摄入被吸收,而一些硒化合物也可能通过皮肤被吸收。一旦进入体内,硒主要分布到肝脏和肾脏。硒是一种必需的微量元素,是谷胱甘肽过氧化物酶、碘甲状腺原氨酸5'-脱碘酶和硫氧还蛋白还原酶的组成部分。有机硒首先被代谢成无机硒。无机硒逐步还原为中间体氢硒化物,然后被转化为硒磷酸和硒半胱氨酸tRNA并整合到硒蛋白中,或者在被转化为硒化物的甲基化代谢物后排入尿液中。元素硒在排泄前也会被甲基化。硒主要通过尿液和粪便排出,但某些硒化合物也可能通过呼吸排出。(L619)
Selenium may be absorbed through inhalation and ingestion, while some selenium compounds may also be absorbed dermally. Once in the body, selenium is distributed mainly to the liver and kidney. Selenium is an essential micronutrient and is a component of glutathione peroxidase, iodothyronine 5'-deiodinases, and thioredoxin reductase. Organic selenium is first metabolized into inorganic selenium. Inorganic selenium is reduced stepwise to the intermediate hydrogen selenide, which is either incorporated into selenoproteins after being transformed to selenophosphate and selenocysteinyl tRNA or excreted into the urine after being transformed into methylated metabolites of selenide. Elemental selenium is also methylated before excretion. Selenium is primarily eliminated in the urine and feces, but certain selenium compounds may also be exhaled. (L619)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 毒性总结
硫化硒可以分解成硒离子。硒能够轻易地取代生物分子和许多生化反应中的硫,特别是在硒的浓度高而硫的浓度低的情况下。通过影响线粒体和微粒体的电子传递,使细胞呼吸中氧化反应所需的巯基酶失活,这可能是急性硒中毒的一个原因。硒代甲硫氨酸(一种常见的有机硒化合物)似乎也可以随机地取代蛋白质合成中的甲硫氨酸。这种替代可能会影响蛋白质的结构和功能性,例如,通过改变二硫键。无机形式的硒似乎通过氧化还原催化与组织巯基反应,导致形成活性氧种,并通过氧化应激造成损害。(L619)
Selenium sulfide can be decomposed to selenium ions. Selenium readily substitutes for sulfur in biomolecules and in many biochemical reactions, especially when the concentration of selenium is high and the concentration of sulfur is low. Inactivation of the sulfhydryl enzymes necessary for oxidative reactions in cellular respiration, through effects on mitochondrial and microsomal electron transport, might contribute to acute selenium toxicity. Selenomethionine (a common organic selenium compound) also appears to randomly substitute for methionine in protein synthesis. This substitution may affect the structure and functionability of the protein, for example, by altering disulfide bridges. Inorganic forms of selenium appear to react with tissue thiols by redox catalysis, resulting in formation of reactive oxygen species and causing damage by oxidative stress. (L619)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 致癌性证据
分类:B2;可能的人类致癌物。分类依据:基于人类研究的不足数据和动物研究的充分证据。口服硒硫化物在F344大鼠的两性以及B6C3F1雌性小鼠中诱发了肝细胞癌,并在B6C3F1雌性小鼠中诱发了肺泡/支气管癌或腺瘤。人类致癌性数据:不足。动物致癌性数据:充分。
CLASSIFICATION: B2; probable human carcinogen. BASIS FOR CLASSIFICATION: Based on inadequate data from human studies and sufficient evidence in animals. When administered orally, selenium sulfide produced hepatocellular carcinomas in both sexes of F344 rats and female B6C3F1 mice and alveolar/bronchiolar carcinomas or adenomas in female B6C3F1 mice. HUMAN CARCINOGENICITY DATA: Inadequate. ANIMAL CARCINOGENICITY DATA: Sufficient.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 致癌性证据
硒硫化物:合理预期为人类致癌物。
Selenium Sulfide: reasonably anticipated to be a human carcinogen.
来源:Hazardous Substances Data Bank (HSDB)
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
长期口腔接触高浓度的硒化合物可能会引发一种名为硒中毒的疾病。硒中毒的主要症状包括脱发、指甲变脆和神经系统异常(例如四肢麻木和其他奇怪的感觉)。动物研究显示,硒还可能影响精子生产和女性生殖周期。
Chronic oral exposure to high concentrations of selenium compounds can produce a disease called selenosis. The major signs of selenosis are hair loss, nail brittleness, and neurological abnormalities (such as numbness and other odd sensations in the extremities). Animal studies have shown that selenium may also affect sperm production and the female reproductive cycle. (L619)
来源:Toxin and Toxin Target Database (T3DB)
吸收、分配和排泄
硫化硒的经皮吸收在连续18天将药物涂抹全身五分钟的研究组中被研究。对第三天和第十三天收集的尿样进行荧光分析,与治疗前水平相比,硒的排泄量没有显著增加。在接受治疗的病人中没有观察到系统性毒性。结果表明硫化硒从皮肤吸收不良。
The percutaneous absorption of selenium sulfide was ... studied in /a/ groups who applied the drug to the entire skin for five minutes for eighteen days. Fluorimetric analysis of urinary samples collected on the third and thirteenth days of treatment revealed no significant increase in the excretion of selenium as compared to pretreatment levels. Systemic toxicity was not observed in any of the patients treated. The results suggest that the selenium sulfide is absorbed poorly from the skin...
来源:Hazardous Substances Data Bank (HSDB)

安全信息

  • 储存条件:
    | 室温 |

SDS

SDS:b8ff5b18dcd96597788eb81a2fda7077
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制备方法与用途

合成制备方法

制法1:在纯氧中加热纯净的硒,并使生成的蒸气通过一加热的铂石棉层,或者让硒在含有痕量二氧化氮的氧中加热。当温度接近500℃时,硒开始燃烧生成SeO₂,并产生淡蓝色火焰。通过调节氧气流量可以控制燃烧反应。产物为雪白色的针状结晶。若要制取少量极纯净的二氧化硒,建议使用高纯硒(杂质含量应低于10⁻⁵%)与高纯氧在密封装置中进行反应。

制法2:将100g纯净亚硒酸加入容积为1L的耐高温玻璃圆底烧瓶中。然后将烧瓶放在砂浴上加热并抽真空(保持压力不低于13.3kPa),在200~250℃下加热数小时,此时二氧化硒便渐渐升华到烧瓶上部。

反应信息

  • 作为反应物:
    描述:
    硫化硒 以 neat (no solvent) 为溶剂, 生成 selenium 、 sulfur
    参考文献:
    名称:
    Ditte, A., Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1871, vol. 73, p. 626 - 626
    摘要:
    DOI:
  • 作为产物:
    描述:
    二氯化二硫二氯化二硒 以 gaseous matrix 为溶剂, 生成 硫化硒
    参考文献:
    名称:
    Winter, R.; Barnes, I.; Fink, E. H., Chemical Physics Letters, 1980, vol. 73, p. 297 - 303
    摘要:
    DOI:
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文献信息

  • Determination of the dissociation energy of selenium monoxide by the mass-spectrometric knudsen-cell method
    作者:Simonne Smoes、Jean Drowart
    DOI:10.1039/f29848001171
    日期:——
    Se2(g)+ SO(g) has been studied by the mass-spectrometric Knudsen-cell method in the temperature interval 1300–1800 K. It leads to the thermochemical value D°0(SeO)= 426.4 ± 6.3 kJ mol–1 for the dissociation energy of the molecule SeO(g). By comparison with spectroscopic data, D°0(SeO)= 424.7+0.6–6.0 kJ mol–1 is retained as best present estimate of the dissociation energy. The corresponding enthalpy of formation
    通过质谱Knudsen-cell方法在1300–1800 K的温度区间内研究了平衡的SeO(g)+ SeS(g)⇌Se 2(g)+ SO(g)。得出热化学值D对于分子SeO(g)的解离能,° 0(SeO)= 426.4±6.3 kJ mol –1。通过与光谱数据比较,保留D ° 0(SeO)= 424.7 +0.6 –6.0 kJ mol –1作为解离能的最佳估计。元素在其标准参考状态下的相应形成焓为ΔH °(formation,SeO,g,298 K)= 58.9 +0.8 –6.0 kJ mol–1。
  • Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Hg: MVol.B3, 1.6.3, page 981 - 992
    作者:
    DOI:——
    日期:——
  • Ditte, A., Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1876, vol. 83, p. 225 - 225
    作者:Ditte, A.
    DOI:——
    日期:——
  • Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Se: MVol.B, 79, page 169 - 171
    作者:
    DOI:——
    日期:——
  • Ditte, A., Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1871, vol. 73, p. 625 - 625
    作者:Ditte, A.
    DOI:——
    日期:——
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