Cadmium iodide is a kind ofinorganic compound, chemical formula is CdItwoIt is mainly used as an analytical reagent, and can also be used to produce phosphorsPhotoconductorIt can also be used in the photographic and pharmaceutical industries.
On October 27, 2017, the list of carcinogens released by the International Agency for Research on Cancer of the World Health Organization (WHO) was preliminarily collated for referenceClass 1 carcinogenList.[1]
Solubility: soluble in water, ethanol, methanol, etheracetoneAnd ammonia[2]
chemical property
1、Cd2-React with sulfur ion to generate yellowCadmium sulfideprecipitate
Cd2++ S2-= CdS↓
2、Cd2-And OH-reaction
Cd2++ 2OH-= Cd(OH)two↓
Preparation method
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Cadmium iodide is a metalcadmiumOr the oxide, hydroxide or carbonate thereof is added to the hydroiodic acid for preparation.In addition, the compound can be prepared by heating cadmium with iodine:
Cd + Itwo= CdItwo
The specific method is to apply excess metal cadmium, wateriodineReflux together for 1-2h, conduct reaction, and filter after reaction.The filtrate is evaporated and concentrated to precipitate crystals.[3]
Calculate chemical data
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Reference value for drainage parameter calculation (XlogP): None
Number of hydrogen bond donors: 0
Number of hydrogen bond receptors: 2
Number of rotatable chemical bonds: 0
Number of tautomers: 0
Topological molecule polar surface area (TPSA): 0
Number of heavy atoms: 3
Surface charge: 0
Complexity: 0
Number of isotope atoms: 0
Determine the number of atomic structure centers: 0
Number of uncertain atomic structure centers: 0
Determine the number of chemical bond structure centers: 0
Number of uncertain chemical bond structure centers: 0
Number of covalent bond units: 3[2]
toxicology data
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Acute toxicity: LDfifty: 170 mg/kg (mouse by mouth).
application area
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It is mainly used as an analytical reagent and can also be used to preparePhosphorPhotoconductor can also be used in photography and pharmaceutical industry.
First aid measures
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Skin contact: Take off contaminated clothes and wash with flowing water.
Eye contact: Lift the eyelid and flush with flowing water or physiological saline.Get medical attention.
Inhalation: quickly leave the site to a place with fresh air.Keep the respiratory tract unobstructed.If breathing is difficult, give oxygen.If breathing stops, perform artificial respiration immediately.Get medical attention.
Ingestion: drink enough warm water to induce vomiting.Gastric lavage and catharsis.Get medical attention.
Fire fighting measures
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Hazard characteristics: toxic iodide smoke is released when heated.
Extinguishing method: firefighters must wear full body fire and gas protective clothing and extinguish the fire upwind.When putting out a fire, try to move the container from the fire site to an open place.
Leakage emergency treatment
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Isolate the leakage contaminated area and restrict access.It is recommended that emergency personnel wear dust masks (full face masks) and gas suits.Collect with a clean shovel in a dry, clean, covered container and transfer to a safe place.In case of large leakage, collect and recycle or transport to waste disposal site for disposal.
Handling and storage
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Precautions for operation: close operation and strengthen ventilation.Operators must be specially trained and strictly abide by the operating procedures.It is recommended that operators wear self-priming filter type dust mask, chemical safety goggles, anti poison penetration work clothes and rubber gloves.Avoid dust generation.Avoid contact with oxidants and potassium.Load and unload gently during transportation to prevent damage to packaging and containers.Provide leakage emergency treatment equipment.Empty containers may leave harmful substances.
Precautions for storage: store in a cool and ventilated warehouse.Keep away from kindling and heat sources.Keep container sealed.It should be stored separately from oxidants, potassium and edible chemicals, and should not be mixed.The storage area shall be equipped with appropriate materials to contain leakage.
security information
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Safety terminology
S22：Do not breathe dust.
Do not breathe dust.
S45：In case of accident or if you feel unwell, seek medical advice immediately (show the lable where possible).
In case of an accident or feeling unwell, seek medical advice immediately (show the label if possible).
S60：This material and/or its container must be disposed of as hazardous waste.
The substance and its container must be disposed of as hazardous waste.
S61：Avoid release to the environment. Refer to special instructions/Safety data sheets.
Avoid releasing into the environment, refer to special instructions/safety receipt instructions.
