865-44-1 Usage
Uses
Different sources of media describe the Uses of 865-44-1 differently. You can refer to the following data:
1. 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.
2. Iodine trichloride can be used to introduce iodine and chlorine in organic synthesis. It is also used as topical antiseptic and as laboratory reagent.
3. Iodine trichloride is used as a chlorinatingand oxidizing agent.
4. Chlorinating and oxidizing agent.
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.
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.]
Check Digit Verification of cas no
The CAS Registry Mumber 865-44-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,6 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 865-44:
(5*8)+(4*6)+(3*5)+(2*4)+(1*4)=91
91 % 10 = 1
So 865-44-1 is a valid CAS Registry Number.
InChI:InChI=1/Cl3I/c1-4(2)3
865-44-1Relevant articles and documents
Truesdale, E. C.,Beyer, F. C.
, p. 164 - 164 (1931)
Reactivity of Sulphuryl Chloride in Acetonitrile with the Elements
Woolf, Alfred A.
, p. 3325 - 3330 (2007/10/02)
Sulphuryl chloride in MeCN reacts with all but the most refractory elements to give mainly solvated chlorides at or below 300 K in contrast with SO2Cl2 alone which requires at least twice this temperature.There is evidence for an ionic mechanism based on analogy, thermochemistry, transport measurements and additive effects.The instability of these solutions leading to polymerization, together with its inhibition, is described.Sulphur dioxide formed in reactions seldom plays a reductive role apart from influencing formation of the mixed-valence Tl4Cl6.Semiquantitative kinetic measurements in different solvents emphasize the uniqueness of MeCN.For most elements attack is diffusion controlled across surface films giving a parabolic dependence on time which can be linearized if film growth is prevented by changing the solvent mix.The varied nature of these surface films vitiates any simple relation between rate and periodicity.Some applications are indicated.
