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:
powder;Silver-gray
-
熔点:
1529 °C(lit.)
-
沸点:
2868 °C(lit.)
-
密度:
9.062 g/mL at 25 °C(lit.)
-
折射率:
1.47 (1300 nm)
- 比旋光度:
- 闪点:
- 溶解性:
-
酸度系数(pKa):
Soluble in acids. Insoluble in water.
- 相对极性:
- PH值:
- 爆炸极限值(explosive limit):
-
敏感性:
Moisture Sensitive
- 储存条件:
- 检测方法:
- 蒸气压:
-
Merck:
13,3675
- BRN:
- NIST化学物质信息:
- EPA化学物质信息:
安全信息
-
危化品标志:
F
-
危化代码:
11
-
安全代码:
43-Neverusewater.
- 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:
8
-
包装类别:
III
- 毒理资料:
- 灭火剂:
应用领域
制备方法/合成路线
参考资料
- Er; at. wt 167.26; at. no. 68; valence 3. Rare earth metal of the yttrium group; member of the lanthanide series. Naturally occurring isotopes (mass numbers): 162 (0.14%); 164 (1.61%); 166 (33.6%); 167 (22.95%); 168 (26.8%); 170 (14.9%). Known artificial radioactive isotopes: 147; 148; 150-161; 163; 165; 169; 171-173. Abundance in earth's crust: 2.47-3.5 ppm. Occurs in small quantities in all the rare earth minerals; main sources: xenotime, fergusonite, gadolinite, euxenite, polycrase, blomstrandine. Discovery: Mosander, Skand. Naturför. Förh. 3, 387 (1842); Philos. Mag. [3] 23, 241 (1843). Separation of oxide: James, J. Am. Chem. Soc. 32, 517 (1910); 34, 757 (1912); Hofmann, Burger, Ber. 41, 308 (1908); Prandtl, Z. Anorg. Chem. 198, 157 (1931). Sepn by ion-exchange: Spedding et al., J. Am. Chem. Soc. 69, 2812 (1947); 76, 2557 (1954). Prepn of the metal: Klemm, Bommer, Z. Anorg. Chem. 213, 138 (1937). Prepn of chloride, bromide: Jantsch et al., Z. Anorg. Chem. 207, 353 (1932). Radioactivity induced by neutron bombardment: Sugden, Nature 135, 469 (1935); McLennan, Rann, ibid. 136, 831 (1935). Spectrum: Eder, Ber. Wien. Akad. [2a] 124, 790 (1915); deGramont, Compt. Rend. 171, 1106 (1920); Mott, McDonald, Trans. R. Soc. Can. Sect. 3 21, 230 (1927). Natural isotopic composition: Hayden et al., Phys. Rev. 77, 299 (1950). Toxicity study: Haley, J. Pharm. Sci. 54, 663 (1965). 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
- 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: