| Identification | More | [Name]
Iodine monochloride | [CAS]
7790-99-0 | [Synonyms]
CHLORINE IODIDE
CHLOROIODIDE
IODINE CHLORIDE
IODINE MONOCHLORIDE
IODINE MONOCHLORIDE SOLUTION, WIJS
IODINE-MONOCHLORIDE, WIJS
Iodine monoehloride
IODINE SOLUTION ACCORDING TO WIJS
IODOCHLORIDE
IODOMONOCHLORIDE
WIJS CHLORIDE
WIJS' CHLORIDE
WIJS IODINE SOLUTION
WIJ'S IODINE SOLUTION
WIJS REAGENT
WIJS' REAGENT
WIJS SOLUTION
WIJS' SOLUTION
chlorineiodide(cli)
ICl | [EINECS(EC#)]
232-236-7 | [Molecular Formula]
ClI | [MDL Number]
MFCD00011354 | [Molecular Weight]
162.36 | [MOL File]
7790-99-0.mol |
| Chemical Properties | Back Directory | [Appearance]
dark red or brown solid and/or liquid | [Melting point ]
25-27°C | [Boiling point ]
97.4 °C (lit.) | [density ]
3.24 g/mL at 25 °C(lit.)
| [vapor density ]
5.5 (vs air)
| [Fp ]
96-98°C | [storage temp. ]
2-8°C | [solubility ]
acetic acid: soluble(lit.) | [form ]
Liquid | [color ]
Red-brown | [PH]
<1 (H2O, 20°C) | [Stability:]
Stable. Incompatible with organic materials, strong bases, metals. Air, light and moisture sensitive. | [Water Solubility ]
decomposes | [Sensitive ]
Moisture Sensitive | [Merck ]
14,5017 | [BRN ]
3902972 | [Exposure limits]
ACGIH: TWA 50 ppm
OSHA: TWA 25 ppm; STEL 125 ppm
NIOSH: IDLH 2300 ppm | [CAS DataBase Reference]
7790-99-0(CAS DataBase Reference) | [NIST Chemistry Reference]
Iodine monochloride(7790-99-0) | [EPA Substance Registry System]
7790-99-0(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R34:Causes burns.
R42:May cause sensitization by inhalation.
R35:Causes severe burns.
R10:Flammable.
R40:Limited evidence of a carcinogenic effect. | [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) .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) . | [RIDADR ]
UN 1792 8/PG 2
| [WGK Germany ]
3
| [RTECS ]
NN1650000
| [F ]
1-8-10 | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
28121049 | [Hazardous Substances Data]
7790-99-0(Hazardous Substances Data) |
| Raw materials And Preparation Products | Back Directory | [Preparation Products]
2,4-DICHLORO-5-IODOPYRIMIDINE-->3-Cyano-4-hydroxybenzoic acid-->3-Amino-2,4,6-triiodobenzoic acid-->2-Amino-5-iodobenzoic acid-->6,10,12-trichloronaphth[2,3-c]acridine-5,8,14(13H)-trione-->N-Acetyl-3,5-diiodo-L-tyrosine ethyl ester-->3,5-Diiodosalicylic acid-->5-Amino-2,4,6-triiodo-N-methylisophthalamic Acid-->4-Iodoanisole-->3-(3-AMINO-2,4,6-TRIIODOPHENYL)PROPIONIC ACID-->5-IODOISATIN-->2,6-DIIODO-4-NITROANILINE-->Sulfuric acid-->CYANOGEN IODIDE-->5,7-Diiodo-8-quinolinol-->3-Bromo-5-iodophenylboronic acid |
| Hazard Information | Back Directory | [Chemical Properties]
Iodine monochloride[7790-99-0] is a reddish brown liquid or black crystals, there are two variants of crystals. α-type is black needles, stable, ruby red under light. β-type is black flakes, unstable, brownish red under light. It has the odor of chlorine and iodine. It does not absorb moisture but can form iodine pentoxide when contacting air. Soluble in water, ethanol, ether, carbon disulfide, and acetic acid, relative density (d0) α-type 3.1822, (d34) β-type 3.24. Melting point α-type 27.2 ℃, β-type 13.9 ℃. Boiling point α-type 97.4°C, β-type 97.4, 100°C (decomposition). It also exhibits corrosive properties. It has the flavor of chlorine and iodine, and it is oxidative and strongly corrosive, and iodination with organic matter, it also shows chlorination, and it can be used for the substitution of the aromatic ring.
| [Uses]
In Wijs' solution (iodine monochloride in glacial acetic acid), used to determine iodine values of fats and oils. | [Uses]
Iodine monochloride is used to estimate theiodine values of fats and oils and as a topicalanti-infective (Merck 1996). For determination of iodine absorption number of fatsIodine monochloride is used as a catalyst in organic synthesis. It is the source of electrophilic iodine in the synthesis of certain aromatic iodides.
| [Preparation]
Iodine monochloride is prepared by the action of liquid or dry chlorine on astoichiometric quantity of solid iodine. Aqueous solutions of ICl are preparedby passing chlorine gas into a suspension of iodine in moderately stronghydrochloric acid:
5I2 + 4HCl + 3Cl2 → 10ICl + 2H2
Alternatively, iodine monochloride may be made by oxidation of iodine withiodic acid in strong hydrochloric acid solution:
2I2 + HIO3 + 2HCl → 2ICl + 3HIO | [General Description]
Black crystals or a reddish brown oily liquid with a pungent odor. Melting point 27°C (alpha form) or 14°C (beta form). Corrosive to metals and tissue. | [Air & Water Reactions]
Reacts with air to form iodine pentaoxide (I2O5), which decomposes into iodine (I2) and oxygen (O2) with heat beginning at 275°C and proceeding rapidly at 350°C. Soluble in water; reacts with water or steam to produce toxic and corrosive fumes [Lewis]. | [Reactions]
Iodine monochloride is moderately explosive when heated [Lewis]. Reacts with rubber and many organic materials. Enflames (after a period of delay) with aluminum foil [Mellor 2:119(1946-1947)]. Reacts dangerously with other active metals. Reacts vigorously with cadmium sulfide, lead sulfide, silver sulfide, and zinc sulfide [Mellor 2, Supp. 1:502(1956)]. Combines very exothermically with phosphorus trichloride [Mellor 2, Supp. 1:502(1956)]. Forms Iodine pentaoxide in air which reacts explosively when warmed with carbon, sulfur, sugar, resin, or powdered combustible elements [Mellor 8: 841(1946-1947)].
| [Reactivity Profile]
Iodine monochloride is moderately explosive when heated [Lewis]. Reacts with rubber and many organic materials. Enflames (after a period of delay) with aluminum foil [Mellor 2:119(1946-1947)]. Reacts dangerously with other active metals. Reacts vigorously with cadmium sulfide, lead sulfide, silver sulfide, and zinc sulfide [Mellor 2, Supp. 1:502(1956)]. Combines very exothermically with phosphorus trichloride [Mellor 2, Supp. 1:502(1956)]. Forms Iodine pentaoxide in air which reacts explosively when warmed with carbon, sulfur, sugar, resin, or powdered combustible elements [Mellor 8: 841(1946-1947)]. | [Hazard]
Toxic by ingestion and inhalation, strong
irritant to eyes and skin. | [Health Hazard]
Iodine monochloride[7790-99-0] is highly corrosive tothe skin. Contact with the skin causes burns and dark patches. Upon contact, washimmediately with 15-20% HCl. Vapors areirritating to the skin, eyes, and mucous mem branes. The compound is moderate to highlytoxic by an oral route. The lethal dose in ratsis 59 mg/kg (NIOSH 1986).
| [Fire Hazard]
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Vapors may accumulate in confined areas (basement, tanks, hopper/tank cars etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases and runoff. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water. | [reaction suitability]
reaction type: Redox Reactions | [Purification Methods]
Purify it by repeated fractional crystallisation from its melt at low temperatures. The black crystals melt to a red-brown liquid. [Cornog & Karges Inorg Synth I 165 1939.] |
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