六价铬标准溶液
| 中文名称 | 六价铬标准溶液 |
|---|---|
| 中文同义词 | 铬(微晶);铬粉;铬;铬粒;铬片;铬离子标准溶液;铬粒(>99%,BR);铬粉(>99%,BR) |
| 英文名称 | Chromium |
| 英文同义词 | Chromium (VI) compounds, (as Cr), certain water insoluble,;Chromium and compounds (as Cr);CHROMIUM POWDER -100 mesh;chromium fume;Chromium pieces, 3-10mm, low gas, Puratronic 99.996% (metals basis);COBALT:IRON SPUTTERTARGET (50:50);Chromium, granular;CHROMIUM: 99.995%, POWDER, -300 MICRON |
| CAS号 | 7440-47-3 |
| 分子式 | Cr |
| 分子量 | 52 |
| EINECS号 | 231-157-5 |
| 相关类别 | 分析标准品;铬;金属;其他生化试剂;粉体;其他金属;标准品和标准物质;镀膜材料;Reagent Grade;Cu单质;无机化工产品;无机盐;微生物;无机单元素标准溶液;生化试剂;单质金属粉体-铬粉;单质-铬粉;铬系产品;金属粉末;金属单质;金属粉;Metals;Inorganics;Catalysis and Inorganic Chemistry;Chemical Synthesis;Chromium;ChromiumMetal and Ceramic Science;Metal and Ceramic Science;ChromiumEssential Chemicals;Reagent Plus;Routine Reagents;metal or element |
| Mol文件 | 7440-47-3.mol |
| 结构式 |  |
六价铬标准溶液 性质
| 熔点 | 1857 °C (lit.) |
|---|---|
| 沸点 | 2672 °C (lit.) |
| 密度 | 7.14 g/mL at 25 °C (lit.) |
| 闪点 | 50 °F |
| 储存条件 | no restrictions. |
| 溶解度 | 与稀酸溶液发生反应 |
| 形态 | 粉末 |
| 比重 | 7.2 |
| 颜色 | 银灰 |
| PH值 | <1 (H2O, 20°C) |
| 气味 (Odor) | 无味 |
| 电阻率 (resistivity) | 12.7 μΩ-cm, 20°C |
| 水溶解性 | Insoluble in water. |
| Merck | 13,2252 |
| 暴露限值 | TLV-TWA: chromium metal 0.5 mg/m3 (ACGIH and MSHA), 1 mg/m3 (OSHA); Cr(II) and Cr(III) compounds 0.5 mg/m3 (ACGIH); Cr(VI) compounds, water soluble and certain water insoluble, 0.05 mg/m3 (ACGIH). |
| 稳定性 | 稳定的。与碳酸盐、强碱、无机酸、锂、二氧化硫、强酸不相容。 |
| CAS 数据库 | 7440-47-3(CAS DataBase Reference) |
| (IARC)致癌物分类 | 3 (Vol. Sup 7, 49) 1990 |
| NIST化学物质信息 | Chromium(7440-47-3) |
| EPA化学物质信息 | Chromium (7440-47-3) |
安全信息
| 危险品标志 | F,C,Xn,Xi |
|---|---|
| 危险类别码 | 11-20/21/22-34-40-23-67-36 |
| 安全说明 | 16-26-36/37/39-45-36/37-27 |
| 危险品运输编号 | UN 2924 3/PG 2 |
| 职业暴露等级 | C |
| 职业暴露限值 | TWA: 0.5 mg/m3 |
| WGK Germany | 3 |
| RTECS号 | GB4200000 |
| 自燃温度 | 580°C |
| TSCA | Yes |
| 海关编码 | 8112 21 90 |
| 危险等级 | 4.1 |
| 包装类别 | III |
| 毒害物质数据 | 7440-47-3(Hazardous Substances Data) |
| 毒性 | Elemental chromium and certain chromium compounds have been designated as carcinogens, hazardous substances, hazardous waste constituents, and priority toxic pollutants. Some of those compounds designated as hazardous are chromic acetate, chromic acid, chromic sulfate, and chromous chloride. Although chromium in the 6+ state is regarded as being the most carcinogenic, there are 6+ compounds that appear to be non-carcinogenic. In addition to their possible carcinogenicity, chromium compounds may have local allergic effects leading to dermatitis. Systemically, 6+ chromium compounds are irritants to the respiratory system and may give rise to pulmonary edema. |
| 立即威胁生命和健康浓度 | 250 mg Cr/m3 |
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六价铬标准溶液 化学药品说明书
| 更新日期 | 产品编号 | 产品名称 | CAS号 | 包装 | 价格 |
|---|---|---|---|---|---|
| 2024/08/19 | 045251 | 铬, 等离子标准溶液, Specpure®, Cr 10μg/ml Chromium, plasma standard solution, Specpure®, Cr 10µg/ml | 7440-47-3 | 100ml | 764元 |
| 2024/08/19 | 044565 | 铬块, 2-15mm (0.08-0.59in), 99.996% (metals basis) Chromium chunks, 2-15mm (0.08-0.59in), 99.996% (metals basis), Thermo Scientific Chemicals | 7440-47-3 | 10g | 1230元 |