Identification | More | [Name]
Iodine pentoxide | [CAS]
12029-98-0 | [Synonyms]
DIIODINE PENTOXIDE IODIC ACID ANHYDRIDE IODIC ANHYDRIDE IODINE OXIDE IODINE PENTAOXIDE IODINE PENTOXIDE IODINE(V) OXIDE IODOPENTOXIDE iodineoxide(i2o5) Iodine (V) oxide, 99% (Assay) diiodine pentaoxide IODINE(V) OXIDE, 99.99% DIIODINE PENTOXIDE, 98+% IodinePentoxideGr IODINE OXIDE 99.99% Iodine(V)oxide,99% IODIC ANHYDRIDE:IODINE PENTOXIDE Diiodine pentoxide, Iodic anhydride | [EINECS(EC#)]
234-740-2 | [Molecular Formula]
IO5 | [MDL Number]
MFCD00011356 | [Molecular Weight]
206.9 | [MOL File]
12029-98-0.mol |
Chemical Properties | Back Directory | [Appearance]
needle shaped crystals | [Melting point ]
300-350°C (dec.) | [density ]
5.08 g/mL at 25 °C
| [storage temp. ]
Store at +5°C to +30°C. | [solubility ]
insoluble in ethanol, ethyl ether, CS2 | [form ]
Crystalline | [color ]
White to cream | [Specific Gravity]
5.08 | [PH]
1.1 (100g/l, H2O, 25℃) | [Stability:]
Stability Strong oxidizer-contact with combustible material may cause fire. Light and moisture sensitive. Incompatible with organic materials, combustible materials, water. | [Water Solubility ]
soluble | [Sensitive ]
Light Sensitive & Hygroscopic | [Merck ]
14,5019 | [CAS DataBase Reference]
12029-98-0(CAS DataBase Reference) | [NIST Chemistry Reference]
diiodine pentoxide(12029-98-0) | [EPA Substance Registry System]
Iodine oxide (I2O5) (12029-98-0) |
Safety Data | Back Directory | [Hazard Codes ]
O,C | [Risk Statements ]
R8:Contact with combustible material may cause fire. R34:Causes burns. | [Safety Statements ]
S17:Keep away from combustible material . S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S27:Take off immediately all contaminated clothing . 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 | [TSCA ]
Yes | [HS Code ]
2811 29 90 | [HazardClass ]
5.1 | [PackingGroup ]
II |
Questions And Answer | Back Directory | [Physical Properties]
White crystals; hygroscopic; density 4.98 g/cm3; decomposes around 300°C; highly soluble in water; soluble in nitric acid; insoluble in ethanol, ether and carbon disulfide.
| [Uses]
Iodine pentoxide is used for analysis of carbon monoxide and for CO removal from air. It also is used as an oxidizing agent in other oxidation reactions.
| [Preparation]
Iodine pentoxide is prepared by dehydration of iodic acid at 240°C.
2HIO3 → I2O5 + H2O
| [Reactions]
Iodine pentoxide is a strong oxidizing agent and reacts with various oxidizable substances. It oxidizes carbon monoxide to carbon dioxide. The reaction is quantitative and used to measure carbon monoxide in the air:
I2O5 + 5CO → I2 + 5CO2
It reacts with hydrogen sulfide, forming sulfur dioxide:
3I2O5 + 5H2S → 3I2 + 5SO2 + 5H2O
Oxidation reaction also occurs with hydrogen chloride, metal hydrides and a number of metal salts. It dissolves in water reacting to form iodic acid:
I2O5 + H2O → 2HIO3
Dissociation into iodine and oxygen commences when heated above 270°C.
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