Cesium Iodide
Also known as: CESIUM IODIDE, CESIUM IODIDE, 99.7%, CESIUM IODINE, Caesium iodide, Cesium Iodide (Metals Basis), Cesium iodide, Cesium iodide (Cs2I2), Cesium iodide (Cs3I3), Cesium iodide (CsI), Cesium iodide, 99.9%, for analysis, Cesium iodide, for analysis, Cesium iodide/ 99.99%, Cesium monoiodide, Dicesium diiodide, EINECS 232-145-2, MFCD00010962, Tricesium triiodide, caesium monoiodide, cesium,iodide, tricesiumtriiodide
Cesium Iodide (CAS 7789-17-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula CsI and a molecular weight of 259.810 g/mol. Key properties include a melting point of 626 °C(lit.), a boiling point of 1280 °C, a density of 4.51 g/mL at 25 °C(lit.) and a flash point of 1280°C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 7789-17-5
- Jingsj CID
- J-16964-6
- Molecular Formula
- CsI
- Molecular Weight
- 259.810 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99.9% 500g | - | - | CN China MOQ 500g | |
Made to Order | 99.9% 1kg | - | - | CN China MOQ 1kg | |
Made to Order | 99.9% 25kg | - | - | CN China MOQ 25kg |
Physicochemical Properties
| Melting Point | 626 °C(lit.) |
|---|---|
| Boiling Point | 1280 °C |
| Density | 4.51 g/mL at 25 °C(lit.) |
| Flash Point | 1280°C |
| Exact Mass | 259.809906 |
| Refractive Index | 1.7876 |
| Additional Property | 74 g/100 mL (20 ºC) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2827600000 |
|---|
Frequently Asked Questions
What is the CAS number of Cesium Iodide?
The CAS number of Cesium Iodide is 7789-17-5.
What are the molecular formula and molecular weight of Cesium Iodide?
Cesium Iodide has molecular formula CsI and molecular weight 259.810 g/mol.
Which suppliers offer Cesium Iodide?
1 supplier(s) listed; request a quote for pricing.
Is Cesium Iodide hazardous?
Cesium Iodide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Cesium Iodide (CAS 7789-17-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16964-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.