锎（CAS 7440-71-3）：分子式 Cf、分子量 251.07959；类别 有机化学品。
锎（CAS 7440-71-3）是一种有机化学品原料。其分子式 Cf 由 1 个Cf 组成。 分子量约为 251.07959。公开物性数据显示其熔点约 900 +/- 30 °C (metal)。作为化工品采购代理与分销渠道，我们可在国内及跨境渠道为锎寻源比价，并安排小批量试样与批次采购；下单前提供完整 COA、质检报告与合规文件，验收以批次 COA 为准。
登记用途：Californium is a byproduct of plutonium production. Two of the californium isotopes (Cf-249 and Cf-251) have half-lives longer than 20 years and are defined as transuranic wastes (TRU) produced in nuclear reactors. Of the ten known isotopes、only Cf-252 is used commercially in industrial radiography and in brachytherapy to treat cancer. About 3% of decays are by spontaneous fission producing neutrons and gamma rays. Cf-252 is a strong emitter of neutrons at a rate of 170 million neutrons per minute、The only californium isotope that has a commercial use is californium-252. Because this radionuclide is only available in very small quantities its uses are quite limited. Californium-252 is a very strong neutron emitter、with one microgram emitting 170 million neutrons per minute. Thin foils containing californium-252 can be used as a source of fission fragments for research purposes. Californium-252 can also be used as a portable neutron source to identify gold or silver ores through neutron activation analysis、and it can be used in moisture gauges to locate water and oil-bearing layers in oil wells. In addition、californium-252 is used in brachytherapy to treat various types of cancer。
锎 是一种以碳骨架为基础的有机化合物，登记 CAS 号为 7440-71-3，分子式 Cf（分子量 251.07959），归属于有机化学品大类化工原料。
登记 CAS 号：7440-71-3
其分子式 Cf 由 1 个Cf 组成。
别名/同义词：锎 · Californium
所属分类：有机化学品
锎 的 CAS 登记号为 7440-71-3。
分子式 Cf，分子量 251.07959。
别名/同义词：锎、Californium。
登记用途：Californium is a byproduct of plutonium production. Two of the californium isotopes (Cf-249 and Cf-251) have half-lives longer than 20 years and are defined as transuranic wastes (TRU) produced in nuclear reactors. Of the ten known isotopes、only Cf-252 is used commercially in industrial radiography and in brachytherapy to treat cancer. About 3% of decays are by spontaneous fission producing neutrons and gamma rays. Cf-252 is a strong emitter of neutrons at a rate of 170 million neutrons per minute、The only californium isotope that has a commercial use is californium-252. Because this radionuclide is only available in very small quantities its uses are quite limited. Californium-252 is a very strong neutron emitter、with one microgram emitting 170 million neutrons per minute. Thin foils containing californium-252 can be used as a source of fission fragments for research purposes. Californium-252 can also be used as a portable neutron source to identify gold or silver ores through neutron activation analysis、and it can be used in moisture gauges to locate water and oil-bearing layers in oil wells. In addition、californium-252 is used in brachytherapy to treat various types of cancer。
所属分类：有机化学品。
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锎（CAS 7440-71-3）的公开数据库记录，列此仅供独立核对。
| 熔点 | 900 +/- 30 °C (metal) |
|---|
| CAS 号 | 7440-71-3 |
|---|---|
| PubChem CID | 23997 |
| 分子式 | Cf |
| IUPAC 名称 | californium |
| UNII（FDA） | 975X05H15A |
CALIFORNIUM; 7440-71-3; 975X05H15A; DTXSID00225392; RefChem:122964; DTXCID00147883; californium atom; HSDB 7386; Californium, radioactive; californio; Kalifornium; Californium Ion; Element-Cf; Element:Cf; UNII-975X05H15A; Atomic Californium
| 分子量 | 251.07959 |
|---|---|
| 氢键供体数 | 0 |
| 氢键受体数 | 0 |
| 可旋转键数 | 0 |
| 精确质量 | 251.07959 |
| 单同位素质量 | 251.07959 |
| 拓扑极性表面积 | 0 |
| 重原子数 | 1 |
| 形式电荷 | 0 |
| 复杂度 | 0 |
锎 · CAS 7440-71-3 · Cf. UNII 975X05H15A. 熔点: 900 +/- 30 °C (metal).
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: Californium