1. Easily deliquescent. Pilikino i ka malamalama. Hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe ʻia i ka ethanol, hiki ke hoʻoheheʻe iki i ka methanol, a aneane hiki ʻole ke hoʻoheheʻe ʻia i ka acetone. ʻO 4.5 ka mānoanoa pili. ʻO ka helu heheʻe he 621°C. Ma kahi o 1280°C ka helu hoʻolapalapa. ʻO 1.7876 ka helu kuhikuhi. He mea ukiuki. ʻona, LD50 (iole, intraperitoneal) 1400mg/kg, (iole, waha) 2386mg/kg.
2. Loaʻa iā Cesium iodide ke ʻano aniani o ka cesium chloride.
3. ʻO ka Cesium iodide ka paʻa wela ikaika, akā ua maʻalahi ka oxidized e ka oxygen i ka ea humid.
4. Hiki ke hoʻoheheʻe ʻia ka Cesium iodide e nā oxidants ikaika e like me ka sodium hypochlorite, sodium bismuthate, nitric acid, permanganic acid, a me ka chlorine.
5. ʻO ka hoʻonui ʻana i ka solubility o ka iodine i loko o ka wai wai o ka cesium iodide ma muli o: CsI+I2→CsI3.
6. Hiki i ka Cesium iodide ke hana me ka nitrate kala: CsI+AgNO3==CsNO3+AgI↓, kahi o AgI (iodide kala) he paʻa melemele ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai.
