Iodide3

iodine

Iodine;Iodide (I21-) (8CI,9CI);Iodine test solution(ChP);Iodine Crystals or Liquid;iodien;Iodine solution standard substance;Iodine test solution;TIANFU-CHEM Iodine

12190-71-5

I2

PNDPGZBMCMUPRI-UHFFFAOYSA-N

253.81

253.808914

231-442-4

2801200000

Coating Additive

0

Iodine in its pure state is a black solid that sublimates (changes from a solid to a gas withoutgoing through a liquid state) at room temperature. It produces a deep purple vapor that is irritatingto the eyes, nose, and throat. Iodine tends to form nonmetallic diatomic molecules (I2).It is the heaviest of the naturally occurring halogens. (Although astatine, the fifth element ingroup 17, is heavier than iodine, it is a synthetic element and does not occur in nature exceptas a very small trace.) Iodine is the least reactive of the five halogens.Iodine’s melting point is 113.7°C, its boiling point is 184.4°C, and its density is 4.93g/cm3.

2.49

Violet-black crystals with a metallic luster and a sharp odor. Mp: 133.5°C, bp: 185°C. Emits toxic vapor at room conditions; vapor becomes visibly purple when its concentration builds up in a confined space. Nearly insoluble in water but very soluble in aqueous solutions of iodides.

4.93

236°F

365°F

1.788

0.01%

Materials which are toxic as stored or which can decompose into toxic components Should be stored in a cool, well-ventilated place, out of the direct rays of the sun, away from areas of high fire hazard, and should be periodically inspected. Incompatible materials should be isolated .

Vapour pressure, kPa at 25°C: 0.04

Relative vapour density (air = 1): 8.8

Noncombustible Solid

Sharp characteristic odor.

Sharp, acrid