| Identification | More | [Name]
Iodine trichloride | [CAS]
865-44-1 | [Synonyms]
IODINE CHLORIDE, TRI
IODINE TRICHLOHIDE
IODINE TRICHLORIDE
iodinechloride(icl3)
IodineTrichlorideForSynthesis
IodineTrichlorideGr[AmpulePacking]
Trichloroiodine
Iodine(III) trichloride | [EINECS(EC#)]
212-739-8 | [Molecular Formula]
Cl3I | [MDL Number]
MFCD00036291 | [Molecular Weight]
233.26 | [MOL File]
865-44-1.mol |
| Chemical Properties | Back Directory | [Appearance]
Orange-yellow, deliquescent, crystalline
powder; pungent irritating odor.
Soluble in water (with decomposition), alcohol, and
benzene. | [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. ]
0-6°C
| [solubility ]
Soluble with decomposition. | [form ]
yellow triclinic crystals | [color ]
yellow triclinic crystals, crystalline; hygroscopic | [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 Information | Back Directory | [Chemical Properties]
Orange-yellow, deliquescent, crystalline
powder; pungent irritating odor.
Soluble in water (with decomposition), alcohol, and
benzene. | [Hazard]
Toxic by ingestion and inhalation, corrosive
to tissue. | [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. | [Purification Methods]
Purify ICl3 by sublimation at room temperature. Irritant vapours. [Booth & Morris Inorg Synth I 167 1939.] | [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. |
| Safety Data | Back Directory | [Hazard Codes ]
C,T | [Risk Statements ]
R34:Causes burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 3085 5.1/PG 2
| [WGK Germany ]
3
| [F ]
8-10 | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
28121099 |
| Questions And Answer | Back Directory | [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.
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