Other grades of this product :
| Iodine trichloride Chemical Properties |
| Melting point | ~33°; mp 101° at 16 atm (pressure of its satd vapor) | | density | 3.12 g/cm3 (20℃) | | vapor pressure | 1.3 hPa (64 °C) | | storage temp. | Store at <= 20°C. | | solubility | Soluble with decomposition. | | form | yellow triclinic crystals | | Water Solubility | decomposes in H2O; soluble alcohol, benzene [HAW93] | | Sensitive | Light Sensitive | | Merck | 13,5042 | | CAS DataBase Reference | 865-44-1(CAS DataBase Reference) | | NIST Chemistry Reference | iodine chloride(865-44-1) | | EPA Substance Registry System | Iodine chloride (ICl3) (865-44-1) |
| Hazard Codes | C,T,O | | Risk Statements | 34-9 | | Safety Statements | 26-36/37/39-45 | | RIDADR | UN 3085 5.1/PG 2 | | WGK Germany | 3 | | F | 8-10 | | TSCA | Yes | | HazardClass | 8 | | PackingGroup | II | | HS Code | 28121099 |
| Iodine trichloride Usage And Synthesis |
| Uses | Iodine trichloride is used in organic synthesis as a chlorinating and iodinating agent to introduce chlorine and iodine into organic compounds producing their halogen derivatives. It also is used as a topical antiseptic.
| | Preparation | Iodine trichloride is prepared by adding iodine to liquid chlorine in a stoichiometric amount:
3Cl2 + I2 → 2ICl3
| | Reactions | Iodine trichloride decomposes on heating at 77°C, forming iodine monochloride and chlorine:
ICl3 →ICl + Cl2
It dissolves in concentrated hydrochloric acid , forming HICl4•4H2O:
ICl3 + HCl + 4H2O → HICl4•4H2O
Iodine trichloride hydrolyzes in water or dilute acids, the products depending upon reaction conditions. This reaction usually is similar to iodine monochloride:
4ICl3 + 6H2O → I2 + 6HCl + 2HIO3 + 3Cl2
It combines with potassium chloride, forming a complex salt, KICl4:
ICl3 + KCl → KICl4
Reaction with acetylene produces chlorovinyl iododichloride, containing two active chlorine atoms attached to the iodine atom:
ICl3 + HC≡CH → ClCH=CHICl2
The above product has many applications in chemical synthesis.
| | Toxicity | Iodine trichloride is highly corrosive. Contact with skin can cause a burn. Vapors are highly irritating to eyes and respiratory tract.
| | Chemical Properties | Orange-yellow, deliquescent, crystalline
powder; pungent irritating odor.
Soluble in water (with decomposition), alcohol, and
benzene. | | Physical properties | Orange yellow triclinic crystals or fluffy powder; hygroscopic; density 3.111g/cm3at 15°C; sublimes at 64°C with decomposition; melts at 101°C at 16 atm;hydrolyzes in water; soluble in ethanol, carbon tetrachloride and benzene; soluble in concentrated hydrochloric acid but hydrolyzes in dilute acid. | | Uses | Iodine trichloride can be used to introduce iodine and chlorine in organic synthesis. It is also used as topical antiseptic and as laboratory reagent. | | Uses | Iodine trichloride is used as a chlorinatingand oxidizing agent. | | Uses | Chlorinating and oxidizing agent. | | Hazard | Toxic by ingestion and inhalation, corrosive
to tissue. | | Health Hazard | Iodine trichloride is a highly corrosive sub stance. Skin contact can cause burn. Vaporsare irritating to the skin, eyes, and mucousmembranes. When heated at 77°C (170°F),it decomposes to chlorine and iodine mono chloride. | | Fire Hazard | Noncombustible solid. Violent reaction oc curs with potassium. It reacts violently when
heated with sodium, aluminum, phosphorus,
phosphorus trichloride, or organic matter. | | Purification Methods | Purify ICl3 by sublimation at room temperature. Irritant vapours. [Booth & Morris Inorg Synth I 167 1939.] |
| Iodine trichloride Preparation Products And Raw materials |
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