Cesium Chloride (CsCl) is a halogenated alkali metal salt celebrated for its exceptional purity (up to 99.9%0 and consistent crystalline structure. Unlike low-purity alternatives, our CsCl minimizes interference in sensitive applications, from DNA separation to laser crystal growth. Its high solubility and thermal stability (melting point: 645℃) make it a staple in both academic labs and industrial facilities.
Key Specifications of Caesium Chloride
| Purity: Up to 99.99% (halide impurities:≤5ppm | Density: 3.988 g/cm3 |
| Molecular Weight: 168.36g/mol | Packaging Options: 500g vials, 5kg vacuum-sealed bags, 20kg drums |
| Appearance: Colorless crystals/powder | CAS No.: 7647-17-8 |
| Solubility: 186g/100mL (water at 20℃) | EINECS No.: 231-600-2 |
Applications of Cesium Chloride
- Molecular Biology: Gold standard for density gradient centrifugation, enabling precise separation of DNA, RNA, and proteins (used in COVID-19 viral genome sequencing).
- Optics: A key component in alkali metal vapor cells for atomic clocks and quantum sensors, where its low impurity profile ensures stable light absorption.
- Pharmaceuticals: Used in preclinical trials for novel antidepressants, leveraging its ability to modulate neurotransmitter uptake.
- Metallurgy: Acts as a flux in aluminum casting, reducing porosity in high-strength alloys for aerospace components.
why choose our CsCl?
- Bioscience-Grade: Tested for endotoxins and RNase/DNase contamination, certified for use in FDA-regulated labs.
- Optical Purity: Low scattering properties make it ideal for laser applications – trusted by leading photonics companies.
- Traceability: Each batch includes a full COA (certificate of Analysis with impurity breakdown (e.g., Na, K, Ca levels)
Cross-Product Connections
- Workflow Pairing: Use with our Cesium Iodide (CsI) for comparative studies in scintillation material research.
- Complementary Salts: For chloride-free applications, our Cesium bromide (CsBr) offers similar crystalline properties.
- Sample Preparation: Our Cesium Formate (CsHCOO) is often used in pre-processing steps for protein purification before CsCl gradient centrifugation.
FAQ
- Q:How does CsCl compare to NaCl in density gradients?
A:CsCl forms steeper, more stable gradients, critical for separating high-molecular-weight DNA (e.g., bacterial plasmids).
- Q:Is your CsCl suitable for food-grade applications?
A:No – Our CsCl is manufactured for industrial/research use only.