caesium

• ChemBase编号: 136954
• 分子式: Cs
• 平均质量: 132.90545
• 单一同位素质量: 132.905451
• SMILES: [Cs]
• Canonical SMILES: [Cs]
• InChI: InChI=1S/Cs
• InChIKey: TVFDJXOCXUVLDH-UHFFFAOYSA-N

名称和登记号

名称

• IUPAC标准名: caesium; caesium hydride
• IUPAC传统名: caesium; caesium hydride
• 别名: 铯,等离子标准溶液, Specpure®, Cs 10,000®g/ml; 铯, AAS标准溶液, Specpure®, Cs 1000 μg/ml; 铯,等离子标准溶液, Specpure®, Cs 1000®g/ml; 铯; Cesium, plasma standard solution, Specpure®, Cs 10,000 g/ml; Cesium, AAS standard solution, Specpure®, Cs 1000 g/ml; Cesium, plasma standard solution, Specpure®, Cs 1000 g/ml; Cesium

登记号

• CAS号: 7440-46-2
• EC号: 231-714-2; 231-155-4
• MDL号: MFCD00134037
• PubChem SID: 24854363; 162231221; 24848807
• PubChem CID: 5354618

理论计算性质

• LogD (pH = 5.5): -0.326
• LogD (pH = 7.4): -0.326
• 质子受体: 0
• 质子供体: 0
• Log P: -0.326
• 摩尔折射率: 0.8 cm^3
• 极化性: 6.0964203 Å^3
• 极化表面积: 0.0 Å^2
• 可自由旋转的化学键: 0
• 里宾斯基五规则: true

分子性质

理化性质

• 外观: Ampouled; ingot; Liquid; Vacuum sealed in breakseal ampoules
• 熔点: 28.5 °C(lit.)
• 沸点: 705 °C(lit.)
• 密度: 1.873 g/mL at 25 °C(lit.)
• 蒸汽压: 1 mmHg ( 279 °C)
• 电阻率: 19 μΩ-cm0°C

安全信息

• RTECS编号: FK9225000
• 欧盟危险性物质标志: 腐蚀性(Corrosive) (C); 易燃性(Flammable) (F)
• 联合国危险货物编号: 1407; UN1407; UN3264
• 德国WGK号: 3
• 联合国危险货物等级: 4.3; 8
• 联合国危险货物包装类别(PG): 1; I; III
• 危险公开号: 11-14/15-34; 14/15-34; 34
• 安全公开号: 23-26-36/37/39-45; 7/8-26-36/37/39-43-45; 8-16-26-36/37/39-43-45
• TSCA收录: 是
• GHS危险品标识: GHS02; GHS05
• GHS警示词: Danger
• GHS危险声明: H260-H314; H260-H314-H318; H314; H314-H318
• GHS警示性声明: P223-P231 + P232-P280-P305 + P351 + P338-P370 + P378-P422; P231+P232-P260-P303+P361+P353-P305+P351+P338-P405-P501A; P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A
• 个人保护装置: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• RID/ADR: UN 1407 4.3/PG 1
• 欧盟补充危害声明: Reacts violently with water.

产品相关信息

• 纯度: ≥99.5%; ≥99.95% trace metals basis; 99.5%; 99.8% (metals basis); 99.98% (metals basis)
• 级别: purum
• 包装: pkg of Packaged in: Breakseal Ampule
• Empirical Formula (Hill Notation): Cs

详细说明

Sigma Aldrich - 239240

包装
1, 5 g in ampule

Sigma Aldrich - 14714

Application
Investigations studying scattering effects on quantum efficiency and response time for cesiated metal photocathodes1Alkali modifier for hydrogenation catalysts2Reactant involved in synthesis of pseudo-hollandite chromium tellurides3Catalyst for ammonia synthesis, investigations of in situ cesium reduction4