Molekula
Cesium fluoride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Cesium fluoride (CsF) is a highly reactive inorganic salt used as a strong fluoride ion donor in organic synthesis, particularly in fluorination reactions and as a catalyst in various chemical processes. It is also employed in semiconductor manufacturing and as a reagent in analytical chemistry. Beyond synthesis, it goes into the production of optical components and specialty glasses and serves as an inorganic scintillator material. Cesium fluoride has a CAS number of 13400-13-0, with a molecular formula of CsF and a molecular weight of 151.91 g/mol. It is stored at ambient conditions but requires careful handling due to its corrosive and hazardous nature, indicated by its "Danger" signal word. Molekula supplies cesium fluoride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £62.00 per pack ex VAT · £74.40 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White crystal |
| Assay | ≥99% |
| Iron (Fe) | ≤0.01% |
| Calcium (Ca) | ≤0.005% |
| Magnesium (Mg) | ≤0.05% |
| Potassium (K) | ≤0.01% |
| Sodium (Na) | ≤0.001% |
| Aluminium (Al) | ≤0.01% |
| Lithium (Li) | ≤0.005% |
| Rubidium (Rb) | ≤0.002% |
| Silicon Dioxide (SiO2) | ≤0.005% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 (6.1) |
| Packing Group | II |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 703 °C |
| Boiling Point | 1251 °C at 760 mmHg |
Source: PubChem CID 25953 (PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 15093275 |
| CAS Number | 13400-13-0 |
| IUPAC Name | cesium fluoride |
| EC Number | 236-487-3 |
| Molecular Formula | CsF |
| Molecular Weight | 151.91 |
| Exact Mass | 151.9039 |
| SMILES | [F-].[Cs+] |
| InChIKey | XJHCXCQVJFPJIK-UHFFFAOYSA-M |
| InChI | InChI=1S/Cs.FH/h;1H/q+1;/p-1 |
| PubChem CID | 25953 |
| UN Number | UN2923 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28261990 |
| Tariff Code | 2826199090 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
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Serious Health Hazard
GHS08
Hazard statements
- EUH032 Contact with acids liberates very toxic gas
- H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H361 Suspected of damaging fertility or the unborn child
- H373 May cause damage to organs through prolonged or repeated exposure
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Caesium fluoride
- caesium(1+) fluoride
- Cesium fluoride (CsF)
- Cesium monofluoride
- Cesium Monofluoride; NSC 84270
- CSF
- Dicesium difluoride
- fluorocaesium
- fluorocesium
- Tricesium trifluoride
Frequently asked questions
What is cesium fluoride commonly used for?
Cesium fluoride is primarily used as a strong fluoride donor in organic synthesis, including fluorination reactions, and as a catalyst in certain chemical processes.
What is the chemical formula and molecular weight of cesium fluoride?
The chemical formula is **CsF**, and the molecular weight is **151.91 g/mol**.
How should cesium fluoride be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and incompatible substances.
What grades or purities of cesium fluoride does Molekula supply?
Molekula supplies **high-purity cesium fluoride** (typically ≥99.9% purity) suitable for research and industrial applications.
Can Molekula supply cesium fluoride in bulk quantities?
Yes, Molekula can provide cesium fluoride in **bulk quantities** upon request, subject to availability and order specifications.
What documentation is provided with a cesium fluoride order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.