化学品概述
基本信息
- 中文名称:
- 中文别名:
- 英文名称:
- 英文别名:
- 分子式:
- 分子量:
- CAS:
- EINECS编号:
- MDL编号:
- 精确质量:
- InChI:
- InChI Key:
- MOL文件:
- PSA:
- LogP:
- FEMA编码:
- COE编码:
理化性质
-
外观性质:
ingot;Silver-gray
-
熔点:
1474 °C
-
沸点:
2695 °C
-
密度:
8.8 g/mL at 25 °C(lit.)
- 折射率:
- 比旋光度:
- 闪点:
- 溶解性:
- 酸度系数(pKa):
- 相对极性:
- PH值:
- 爆炸极限值(explosive limit):
-
敏感性:
Air & Moisture Sensitive
- 储存条件:
- 检测方法:
- 蒸气压:
-
Merck:
13,4747
- BRN:
- NIST化学物质信息:
- EPA化学物质信息:
安全信息
-
危化品标志:
C,F,O
-
危化代码:
34-11-8
-
安全代码:
22-24/25-36-26-23-45-36/37/39-27
- 海关编码/HS编码:
-
危化品运输编码:
UN 3089 4.1/PG 2
-
WGK Germany:
3
- RTECS:
-
TSCA:
Yes
-
危化等级:
4.1
-
包装类别:
II
- 毒理资料:
- 灭火剂:
应用领域
制备方法/合成路线
参考资料
- Ho; at. wt 164.93032; at. no. 67; valence 3. A rare earth metal of the yttrium group; member of the lanthanide series. Naturally occurring isotope (mass number): 165; known artificial radioactive isotopes: 146-164; 166-170. Estimated abundance in earth's crust 1.15-1.4 ppm; occurs in rare earth minerals. Discovered by Soret in 1878 and independently by Cleve in 1879: Cleve, Compt. Rend. 89, 478, 708 (1879). Purification of salts: Holmberg, Z. Anorg. Chem. 71, 226 (1911). Separation from erbium: Driggs, Hopkins, J. Am. Chem. Soc. 47, 363 (1925); from other rare earths: Spedding et al., ibid. 69, 2812 (1947); 76, 2557 (1954). Absorption spectrum: Severin, Z. Phys. 125, 455 (1949). Analysis by means of emission spectra: Smith, Wiggins, Analyst 74, 95 (1949). Toxicity study: Haley et al., Toxicol. Appl. Pharmacol. 8, 37 (1966). Reviews of prepn, properties and compds: The Rare Earths, F. H. Spedding, A. H. Daane, Eds. (Krieger, Huntington, N.Y., 1971, reprint of 1961 ed.) 641 pp; Hulet, Bode, "Separation Chemistry of the Lanthanides and Transplutonium Actinides" in MTP Int. Rev. Sci.: Inorg. Chem., Ser. One vol. 7, K. W. Bagnall, Ed. (University Park Press, Baltimore, 1972) pp 1-45; Moeller, "The Lanthanides" in Comprehensive Inorganic Chemistry vol. 4, J. C. Bailar, Jr. et al., Eds. (Pergamon Press, Oxford, 1973) pp 1-101; F. H. Spedding in Kirk-Othmer Encyclopedia of Chemical Technology vol. 19, (John Wiley & Sons, New York, 3rd ed., 1982) pp 833-854; Chemistry of the Elements, N. N. Greenwood, A. Earnshaw, Eds. (Pergamon Press, New York, 1984) pp 1423-1449. Brief review of properties: G. T. Seaborg, Radiochim. Acta 61, 115-122 (1993).
- MSDS
图谱
计算化学数据
- 疏水参数计算参考值(XlogP):
- 氢键供体数量 :
- 氢键受体数量:
- 可旋转化学键数量:
- 拓扑分子机型表面积(TPSA) :
- 重原子数量:
- 形式电荷:
- 复杂度:
- 同位素原子数量:
- 确定原子立构中心数量:
- 不确定原子立构中心数量:
- 确定化学键立构中心数量:
- 不确定化学键立构中心数量:
- 共价键单元数量: