Cadmium(2+) diiodide

CdI2

cadmium(2+) diiodide

CAS7790-80-9
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
7790-80-9
EC Number
232-223-6
UN Number
2570
Index Number
048-007-00-8
PubChem CID
24635

Physical-chemical properties

Molecular Formula
CdI2
Molar Mass
366.22 g/mol
IUPAC Name
cadmium(2+) diiodide

Chemical Identifiers

InChI
InChI=1S/Cd.2HI/h;2*1H/q+2;;/p-2
InChI Key
OKIIEJOIXGHUKX-UHFFFAOYSA-L

Overview

Cadmium(2+) diiodide (CAS 7790-80-9) is an inorganic cadmium salt with high toxicity and significant environmental hazard potential. This crystalline compound, also known by its IUPAC designation cadmium(2+) diiodide, represents a critical industrial chemical with molecular formula CdI2 and molecular weight of 366.22 g/mol. The substance exhibits the characteristic properties of cadmium-based compounds, sharing similar toxicological profiles with related materials such as cadmium(2+);silicon(4+);hexafluoride, though each compound maintains distinct chemical behaviors and applications. Cadmium diiodide presents significant safety considerations due to its classification under multiple hazard categories. The compound carries a Danger signal word with GHS pictograms indicating health hazards (GHS08), acute toxicity (GHS06), and environmental dangers (GHS09). Its classification includes carcinogenicity category 2, acute toxicity category 3 for multiple exposure routes, specific target organ toxicity with repeated exposure category 2, and severe aquatic toxicity for both acute and chronic effects. Transportation requires adherence to ADR class 6.1 regulations for toxic substances. The compound finds application in specialized industrial processes, particularly in analytical chemistry as a reagent for spectroscopic analysis, in semiconductor research for thin-film deposition studies, and in specialized optical applications due to its unique crystalline properties. Like other cadmium compounds including cadmium;formic acid derivatives, its use requires stringent safety protocols and waste management procedures. Industrial users must implement comprehensive safety measures including proper ventilation, personal protective equipment, and environmental containment systems when handling this material. OYSI provides cadmium(2+) diiodide to qualified industrial customers with complete regulatory documentation and safety data sheets.

Safety & Classification

Danger
Classification:

Carc. 2; Acute Tox. 3 *; Acute Tox. 3 *; STOT RE 2 *; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H351

Suspected of causing cancer.

H331

Toxic if inhaled.

H301

Toxic if swallowed.

H373

May cause damage to organs through prolonged or repeated exposure.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Toxic

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

Ingestion

Toxic

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number2570
ADR Class6.1
Packing GroupIII
Tunnel CodeE
Proper Shipping NameCadmiumiodid
Marine PollutantNo

Frequently Asked Questions

What is cadmium(2+) diiodide?

Cadmium(2+) diiodide is an inorganic chemical compound with the formula CdI2 and CAS number 7790-80-9. This compound consists of cadmium ions in the +2 oxidation state combined with iodide ions. With a molecular weight of 366.22 g/mol, it is classified as a hazardous substance due to its carcinogenic properties, acute toxicity, and environmental dangers. The compound exhibits significant health risks and requires careful handling in industrial and laboratory applications.

What are the physicochemical properties of cadmium(2+) diiodide?

Cadmium(2+) diiodide appears as a crystalline solid, typically white to pale yellow in color. The compound is highly soluble in water and polar solvents, forming clear solutions. It has a layered crystal structure similar to other metal dihalides. The substance is hygroscopic, meaning it readily absorbs moisture from air. Due to its ionic nature, it conducts electricity when dissolved in water and has a relatively high melting point characteristic of ionic compounds.

What is cadmium(2+) diiodide used for?

Cadmium(2+) diiodide serves primarily as a research chemical and analytical reagent in laboratory applications. It is used in specialized chemical synthesis processes, particularly in the preparation of other cadmium compounds. The compound finds application in certain photographic processes and as a source material for cadmium in various chemical reactions. Due to its hazardous nature, its industrial applications are limited and strictly regulated, with usage primarily confined to controlled laboratory environments.

How to handle cadmium(2+) diiodide safely?

Cadmium(2+) diiodide requires strict safety protocols due to its carcinogenic and toxic properties. Personnel must wear appropriate PPE including nitrile gloves, safety goggles, and respiratory protection. Work should be conducted in a well-ventilated fume hood to prevent inhalation exposure. Avoid skin contact and ingestion completely. Emergency washing facilities must be readily available. All handling procedures should follow institutional safety guidelines, and personnel must be trained in hazardous material protocols before working with this compound.

How to store cadmium(2+) diiodide correctly?

Cadmium(2+) diiodide must be stored in a cool, dry, well-ventilated area away from incompatible materials. The compound should be kept in tightly sealed, labeled containers to prevent moisture absorption and contamination. Storage areas must be secure and access-restricted due to the substance's toxic and carcinogenic properties. Avoid storage near acids, bases, and reducing agents. Temperature should remain stable, and the storage facility must comply with local regulations for hazardous chemical storage.

What to do in case of contact with cadmium(2+) diiodide?

Immediate action is critical upon contact with cadmium(2+) diiodide. For skin contact, immediately remove contaminated clothing and flush the affected area with copious amounts of water for at least 15 minutes. If inhaled, move the person to fresh air immediately. For eye contact, rinse thoroughly with water for 15 minutes while holding eyelids open. If ingested, do not induce vomiting - rinse mouth and seek immediate medical attention. Always consult a physician promptly after any exposure incident.

How to dispose of cadmium(2+) diiodide properly?

Cadmium(2+) diiodide disposal requires specialized hazardous waste management due to its toxic and environmental properties. The compound cannot be disposed of through regular waste streams and must be collected by licensed hazardous waste disposal companies. All containers and contaminated materials require proper labeling and documentation. Disposal must comply with local, national, and EU regulations regarding cadmium-containing wastes. Never attempt to neutralize or treat the compound without proper authorization and expertise.

How to transport cadmium(2+) diiodide?

Cadmium(2+) diiodide is classified under ADR Class 6.1 (toxic substances), Packing Group III. Transportation requires appropriate UN-specification packaging with proper labeling including GHS pictograms GHS06, GHS08, and GHS09. Shipping documents must include the correct shipping name, UN number, and hazard class. Carriers must be trained in hazardous materials transport, and emergency response information must accompany shipments. All transport must comply with ADR regulations and national transport authorities' requirements.

Is cadmium(2+) diiodide subject to specific regulations?

Cadmium(2+) diiodide is subject to extensive regulatory oversight under multiple frameworks. Under EU REACH regulation, it requires registration for manufacture or import above one tonne annually. The CLP regulation mandates specific hazard classification and labeling requirements. As a cadmium compound, it falls under restrictions regarding use in consumer products and environmental releases. Users must comply with occupational exposure limits, waste management regulations, and may require permits for certain applications depending on jurisdiction.

Where to buy cadmium(2+) diiodide in Europe?

Cadmium(2+) diiodide is available through specialized chemical distributors in Europe, including OYSI, which supplies high-quality chemical products to industrial and research customers across the European market. Due to the compound's hazardous nature, purchases typically require proper documentation, end-use declarations, and compliance with regulatory requirements. Buyers must demonstrate appropriate handling capabilities and regulatory compliance. Contact OYSI's technical team for availability, specifications, and regulatory guidance for your specific application requirements.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.