Cesium nitrate
Cesium nitrate (CAS 7789-18-6), with the empirical formula CsNO3 and a molecular weight of 194.91 g/mol, is an inorganic salt supplied by Tech Serve Solutions. This compound typically presents as white to off-white crystals or lumps. It is primarily utilized as a key reagent in chemical synthesis, notably for producing complex cesium-containing compounds. TSS offers high-purity cesium nitrate for laboratory and industrial applications.
- IUPAC
- Nitric acid cesium salt
- Synonyms
- Nitric acid cesium salt

Chemical Synthesis Reagent
Cesium nitrate serves as a precursor in the synthesis of various complex inorganic compounds. A notable example is its use in preparing cesium nitratocuprate, Cs2[Cu(NO3)4], which exhibits interesting coordination chemistry around the copper center.
Materials Science
As a source of cesium ions, this salt can be employed in research and development within materials science, potentially for the creation of novel materials or functional coatings where cesium incorporation is desired.
Laboratory Research
This compound is valuable for fundamental research in inorganic chemistry and related fields, enabling the study of cesium-based materials and reactions under controlled laboratory conditions.
| Molecular weight | 194.91 |
|---|---|
| Empirical formula | CsNO3 |
| Assay | ≥99.0% (T) |
| Form | crystals and lumps |
| Density | 3.685 g/mL at 25 °C(lit.) |
| Application | Used in the synthesis of cesium nitratocuprate, Cs2[Cu(NO3)4], which crystallizes in a square-planar coordination around the Cu center.1 |
| Melting point | 414 °C(lit.) |


Hazard statements
- H272May intensify fire; oxidiser
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P220Keep away from clothing and combustible materials
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1451 5.1 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | O,Xi |
| Risk statements (R) | 8-36/37/38 |
| Safety statements (S) | 17 |
| Cation traces | Ca: ≤50 mg/kgCd: ≤50 mg/kgCo: ≤50 mg/kgCu: ≤50 mg/kgFe: ≤50 mg/kgK: ≤100 mg/kgNa: ≤100 mg/kgNi: ≤50 mg/kgPb: ≤50 mg/kgZn: ≤50 mg/kg |
| Anion traces | chloride (Cl-): ≤300 mg/kgsulfate (SO42-): ≤50 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Cesium nitrate used for?
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Cesium nitrate is primarily used in chemical synthesis, particularly for producing complex cesium-containing compounds like cesium nitratocuprate, and in materials science research.
What are the CAS number and formula for Cesium nitrate?
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The CAS number for Cesium nitrate is 7789-18-6, and its empirical formula is CsNO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cesium nitrate with an assay of ≥99.0% (T), typically in crystalline or lump form. We do not represent this product as USP, BP, EP, or for nutraceutical/food use.
What are the main safety concerns when handling Cesium nitrate?
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Cesium nitrate is an oxidiser (H272) and can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Always wear appropriate PPE, including eyeshields and suitable gloves, and use in a well-ventilated area or with respiratory protection (type N100 US or P3 EN143). Handle with care to avoid dust formation.
How is Cesium nitrate packed and shipped?
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Cesium nitrate is shipped according to regulations for oxidising substances (UN 1451, Class 5.1, PGIII). Packaging is designed to maintain product integrity and safety during transit and export.
How can I request a quote or sample of Cesium nitrate?
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To request a quote or sample, please contact our sales department via the website or provide your details through the designated inquiry form, specifying the product name and CAS number.
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