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Cadmium Rod, Cadmium Metal Rod, 7440-43-9

Cadmium Rod, Cadmium Metal Rod, 7440-43-9

CADMIUM ROD (CADMIUM METAL)

PRODUCT IDENTIFICATION INFORMATION

Parameter Information
Product Name Cadmium Rod
Chemical Symbol Cd
Synonyms (English) Cadmium Rod, Cadmium Metal Rod, Cd Rod
Synonyms (Turkish) Kadmiyum Çubuk, Kadmiyum Metal Çubuk, Cd Çubuk
CAS Number 7440-43-9
EC Number (EINECS) 231-152-8
Atomic Number 48
Atomic Weight 112.41 g/mol
Appearance Silvery-white metallic rod

CHEMICAL STRUCTURE

    Cadmium Rod (Cd)
    
    Hexagonal Close-Packed (HCP) Crystal Structure
    
         Cd  Cd  Cd  Cd
           \  |  /  |
            Cd Cd Cd Cd
           /  |  \  |
         Cd  Cd  Cd  Cd
    
    Hexagonal Close-Packed (HCP) Crystal Structure
    Soft, Ductile Metal

Molecular Formula: Cd (Elemental)
Crystal Structure: Hexagonal Close-Packed (HCP)
Electron Configuration: [Kr] 4d¹⁰ 5s²
Oxidation States: +2 (primary)
Magnetic Properties: Diamagnetic

SECTION 1: CHEMICAL IDENTITY AND DEFINITION

Parameter Information
Product Name Cadmium Rod
Chemical Symbol Cd
Synonyms (English) Cadmium Rod, Cadmium Metal Rod, Cd Rod
Synonyms (Turkish) Kadmiyum Çubuk, Kadmiyum Metal Çubuk, Cd Çubuk
CAS Number 7440-43-9
EC Number (EINECS) 231-152-8
Atomic Number 48
Atomic Weight 112.41 g/mol
Chemical Class Transition metal; heavy metal
Crystal Structure Hexagonal Close-Packed (HCP)
Electron Configuration [Kr] 4d¹⁰ 5s²
Oxidation States +2 (primary)
Appearance Silvery-white metallic rod
Odor Odorless
Color Silvery-white
Luster Metallic luster
Magnetic Properties Diamagnetic

SECTION 2: PHYSICAL AND CHEMICAL PROPERTIES

Property Value Test Method / Note
Appearance Silvery-white metallic rod Visual
Atomic Weight 112.41 g/mol Calculated
Density (20°C) 8.65 g/cm³ ASTM D792
Melting Point 321°C DSC
Boiling Point 767°C -
Hardness (Mohs) ~2.0 (soft) Mohs Scale
Hardness (Brinell) ~20-30 HB ASTM E10
Tensile Strength ~60-80 MPa ASTM E8
Elongation ~20-40% (high ductility) ASTM E8
Electrical Conductivity 13.8 × 10⁶ S/m (good) ASTM E1004
Thermal Conductivity 96.8 W/m·K -
Specific Heat (25°C) 0.232 J/g·K -
Electrical Resistivity 7.27 × 10⁻⁸ Ω·m -
Coefficient of Thermal Expansion 30.8 × 10⁻⁶ /°C -
Magnetic Properties Diamagnetic -
Oxidation States +2 -
Corrosion Resistance Good (passive oxide layer) -
Standard Electrode Potential -0.40 V (Cd²⁺/Cd) -
Vapor Pressure (321°C) 1 atm -

SECTION 3: CHEMICAL PROPERTIES AND REACTIVITY

Parameter Information
Chemical Character Transition metal; soft; ductile; high malleability; good corrosion resistance; high toxicity
Stability Stable under normal conditions; Forms passive oxide layer (CdO) on surface; Corrosion resistant
Reactivity Dissolves in dilute acids; Rapidly dissolves in nitric acid; Reacts with halogens; Oxidizes at high temperatures
Incompatible Materials Strong oxidizing agents, acids, halogens, sulfur, selenium, tellurium
Corrosion Resistance Good; Resistant to corrosion in most environments; Forms passive oxide layer
Acid Reaction Cd + 2HCl → CdCl₂ + H₂; Cd + 2HNO₃ → Cd(NO₃)₂ + H₂ (rapid in nitric acid)
Oxidation 2Cd + O₂ → 2CdO (slow, surface); Cd + O₂ → CdO₂ (at high temperature)
Passivation Forms protective oxide layer on surface
Alloy Formation Forms alloys with zinc, copper, nickel, silver; Low melting point solder alloys
Neutron Absorption High neutron capture cross-section; Control rods in nuclear reactors

SECTION 4: COMPARISON OF CADMIUM AND RELATED METALS

Property Cadmium (Cd) Zinc (Zn) Lead (Pb) Tin (Sn)
CAS Number 7440-43-9 7440-66-6 7439-92-1 7440-31-5
Symbol Cd Zn Pb Sn
Atomic Number 48 30 82 50
Density (g/cm³) 8.65 7.14 11.34 7.28
Melting Point (°C) 321 419.5 327.5 231.9
Hardness Soft Moderate Very soft Very soft
Toxicity High Low High Low
Primary Use Ni-Cd batteries, plating Galvanizing, alloys Batteries, shielding Solder, plating

SECTION 5: PRODUCTION METHODS

Method 1: Recovery from Zinc Ore (Most Common)

  • Process: Zinc ore → Roasting → Leaching → Cementation → Purification → Cadmium

  • Description: Cadmium is present in trace amounts in zinc ores; Obtained as a by-product during zinc production; Cadmium is precipitated by cementation; Purification yields pure cadmium; Most common industrial production method

Method 2: Electrolytic Method

  • Process: Cadmium salt solution → Electrolysis → Pure cadmium

  • Reaction: Cd²⁺ + 2e⁻ → Cd (deposition at cathode)

  • Description: Cadmium salt solution is electrolyzed; Pure cadmium deposits on cathode; Produces high-purity cadmium (99.99%+)

Method 3: Distillation Method

  • Process: Crude cadmium → Vacuum distillation → Pure cadmium

  • Description: Crude cadmium is distilled under vacuum; Volatile impurities are removed; High-purity cadmium is obtained

Method 4: Recycling

  • Process: Ni-Cd batteries → Recycling → Cadmium recovery

  • Description: Cadmium is recovered from spent nickel-cadmium batteries; Sustainable production method

SECTION 6: FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION

Property Description
Battery Material Electrode material in nickel-cadmium (Ni-Cd) batteries; High energy density; Long cycle life; Low temperature performance; Rechargeable batteries
Corrosion Protection Cadmium plating protects steel and other metals from corrosion; Acts as sacrificial anode; Provides long-lasting protection
Neutron Absorption High neutron capture cross-section; Control rods in nuclear reactors; Neutron absorption; Nuclear shielding
Low-Melting Alloys Low melting point (321°C) for solder alloys; Low-temperature melting alloys; Fuse and safety applications
Pigment Production Cadmium sulfide (CdS) yellow and red pigments; Paints and coatings; Ceramic and glass coloring
Electroplating Anode in cadmium plating baths; Corrosion resistance; Decorative coatings
Semiconductor Applications Cadmium sulfide (CdS) and cadmium telluride (CdTe) solar cells; Photoresistors; Optoelectronics

SECTION 7: MAIN APPLICATION AREAS

Industry / Application Function Typical Use
Battery Industry Electrode Nickel-cadmium (Ni-Cd) batteries; Portable electronics; Emergency lighting; Aerospace batteries
Plating Industry Corrosion protection Cadmium plating (steel and metals); Aerospace components; Marine equipment; Automotive parts
Nuclear Industry Neutron absorber Nuclear reactor control rods; Neutron shielding; Nuclear safety systems
Alloy Production Alloy component Low-melting point solder alloys; Fuse alloys; Dental amalgams
Pigment Industry Colorant Cadmium sulfide (CdS) pigments; Yellow and red paints; Ceramic and glass coloring
Semiconductor Photoelectric material Cadmium sulfide (CdS) solar cells; Photoresistors; Optoelectronics
Research & Development Laboratory material Chemical and physical experiments; Pure cadmium rods; Materials science research

SECTION 8: QUALITY SPECIFICATIONS (PURE CADMIUM ROD)

Parameter Specification Test Method
Appearance Silvery-white metallic rod Visual
Purity (Cd) ≥ 99.9% - 99.99% AAS / ICP
Zinc (Zn) ≤ 0.01% - 0.05% AAS / ICP
Lead (Pb) ≤ 0.001% - 0.01% AAS / ICP
Copper (Cu) ≤ 0.001% - 0.01% AAS / ICP
Iron (Fe) ≤ 0.001% - 0.01% AAS / ICP
Tin (Sn) ≤ 0.001% - 0.01% AAS / ICP
Antimony (Sb) ≤ 0.001% - 0.005% AAS / ICP
Arsenic (As) ≤ 0.001% - 0.005% AAS / ICP
Tellurium (Te) ≤ 0.001% - 0.005% AAS / ICP
Thallium (Tl) ≤ 0.001% - 0.005% AAS / ICP
Rod Diameter 5-50 mm (standard) Micrometer
Rod Length 50-1000 mm (standard) Measurement
Density 8.65 g/cm³ ASTM D792

SECTION 9: TOXICOLOGICAL PROFILE

Parameter Value
Acute Oral Toxicity (LD50, Rat) ~ 300-500 mg/kg (high toxicity)
Acute Inhalation Toxicity Toxic; Dust/fume inhalation causes severe lung damage
Acute Dermal Toxicity Toxic; Absorption through skin
Skin Irritation Irritant
Eye Irritation Irritant
Chronic Toxicity Cadmium accumulation causes kidney damage; Bone demineralization (itai-itai disease); Lung cancer; Prostate cancer
Carcinogenicity IARC Group 1 (Carcinogenic to humans); NTP: Known human carcinogen
Mutagenicity Classified as mutagenic; Genetic damage
Reproductive Toxicity May damage fertility; Developmental toxicity
Target Organs Kidneys, bones, lungs, prostate, testes, liver
Occupational Exposure Limit (8h TWA) 0.005 mg/m³ (OSHA PEL); 0.01 mg/m³ (ACGIH TLV)
Biological Exposure Limit 5 µg/g creatinine (urine)
Special Toxicity Note CADMIUM IS EXTREMELY TOXIC. Chronic exposure causes kidney damage and bone demineralization (itai-itai disease). Lung and prostate cancer risk. Accumulates in the body (biological half-life ~25-30 years). Absorbed through skin, respiratory, and digestive systems. Accumulates in the environment and harms ecosystems.

SECTION 10: GHS CLASSIFICATION AND LABELING

GHS Classification (Compliant with CLP and UN GHS):

Hazard Class Category H-Statement
Carcinogenicity Category 1A H350
Mutagenicity Category 2 H341
Reproductive Toxicity Category 1B H360D
Acute Toxicity (Oral) Category 3 H301
Acute Toxicity (Inhalation) Category 3 H331
Acute Toxicity (Dermal) Category 4 H312
STOT - RE (Repeated Exposure) Category 1 H372
Acute Aquatic Toxicity Category 1 H400
Chronic Aquatic Toxicity Category 1 H410

Signal Word: DANGER

Hazard Pictograms: GHS06 (Skull and Crossbones), GHS08 (Health Hazard), GHS09 (Environment)

Hazard Statements (H-Codes):

Code Statement
H301 Toxic if swallowed
H312 Harmful in contact with skin
H331 Toxic if inhaled
H341 Suspected of causing genetic defects
H350 Causes cancer
H360D May damage the unborn child
H372 Causes damage to organs through prolonged or repeated exposure
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects

NFPA 704 Hazard Classification:

Health Flammability Reactivity Special
4 0 0 -
(Severe health hazard) (Will not burn) (Stable) (None)

SECTION 11: PRECAUTIONARY STATEMENTS (P-CODES)

Code Statement
P201 Obtain special instructions before use
P202 Do not handle until all safety precautions have been read and understood
P260 Do not breathe dust/fume/gas/mist/vapors/spray
P261 Avoid breathing dust/fume/gas/mist/vapors/spray
P264 Wash hands thoroughly after handling
P270 Do not eat, drink or smoke when using this product
P271 Use only outdoors or in a well-ventilated area
P273 Avoid release to the environment
P280 Wear protective gloves/protective clothing/eye protection/face protection/respiratory protection
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor
P302+P352 IF ON SKIN: Wash with plenty of soap and water
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing
P308+P313 IF exposed or concerned: Get medical advice/attention
P310 Immediately call a POISON CENTER/doctor
P330 Rinse mouth
P362+P364 Take off contaminated clothing and wash it before reuse
P403+P233 Store in a well-ventilated place. Keep container tightly closed
P405 Store locked up
P501 Dispose of contents/container in accordance with local/regional/national/international regulations

SECTION 12: FIRST AID MEASURES

Exposure Route Action to Take
Inhalation Move to fresh air immediately. Rest in a position comfortable for breathing. If breathing is difficult, give oxygen. If respiratory symptoms occur, call a POISON CENTER/doctor immediately.
Skin Contact Remove contaminated clothing immediately. Rinse skin with plenty of water for at least 15-20 minutes. Wash with soap and water. Get immediate medical attention.
Eye Contact Rinse immediately with plenty of water for at least 15 minutes. Keep eyelids open. Remove contact lenses if present. Continue rinsing. Get immediate medical attention.
Ingestion Rinse mouth with water. Do NOT induce vomiting. Give one or two glasses of milk or water to drink. Immediately call a POISON CENTER/doctor. Never give anything by mouth to an unconscious person.

SECTION 13: FIREFIGHTING MEASURES

Parameter Information
Fire Hazard Non-combustible. Powder form may be combustible. High temperatures release toxic cadmium oxide fumes.
Hazards During Fire Thermal decomposition produces toxic cadmium oxide (CdO) fumes
Suitable Extinguishers Dry chemical powder, CO₂, sand
Unsuitable Extinguishers Water (with powder form)
Special Protective Equipment Self-contained breathing apparatus (SCBA), full protective clothing
Special Precautions Prevent dust from entering sewers and waterways; Do not inhale fumes

SECTION 14: STORAGE AND SHELF LIFE

Parameter Information
Storage Conditions Store in a cool, dry, well-ventilated area; Keep away from moisture and incompatible substances; Store separately from food and feed
Container Requirements Original packaging, dry containers; Protect from corrosion
Materials to Protect From Strong oxidizing agents, acids, halogens, sulfur, selenium, tellurium, moisture
Shelf Life Unlimited (under proper storage conditions)
Stability Note Stable under normal conditions; Forms oxide layer on surface; Protect from moisture
Special Storage Requirements Store separately from food and feed; Store locked up; Regular monitoring for cadmium contamination

SECTION 15: PACKAGING OPTIONS

Packaging Type Quantity Material
Wooden Crate 50-200 kg Wooden crate (lined)
Steel Crate 50-200 kg Steel crate
Steel Drum 100-500 kg Corrosion-resistant lined steel
Pallet 500-1000 kg Steel pallet
Bulk Custom quantities Container

SECTION 16: TRANSPORT INFORMATION

Parameter Information
UN Number UN 2570 (Cadmium compounds) (specific UN available for metal)
Hazard Class 6.1 (Toxic Substance)
Packing Group III
ADR/RID UN 2570, Cadmium compounds, 6.1, PG III
IMDG Code UN 2570, Cadmium compounds, 6.1, PG III, Marine Pollutant: Yes
IATA (Air) UN 2570, Cadmium compounds, 6.1, PG III
Marine Pollutant Yes
Transport Temperature Ambient temperature; Protect from moisture

SECTION 17: REGULATORY STATUS

Region / Authority Status
European Union REACH registered; Classified as carcinogen, mutagen, and reproductive toxicant; SVHC (Substance of Very High Concern)
USA (TSCA) Listed
USA (EPA) Regulated as hazardous substance; Toxic Release Inventory (TRI)
Turkey Industrial raw material; Subject to KKDIK regulation; Classified as carcinogen
IARC Group 1 (Carcinogenic to humans)
NTP Known human carcinogen
OSHA Regulated (highly toxic substance)
California (Prop 65) Listed as carcinogen and reproductive toxicant
EU Restrictions Restricted under REACH Annex XVII (cadmium and compounds)
RoHS Restricted in electronic equipment

SECTION 18: OTHER NAMES AND SYNONYMS

Type Name
Turkish Names Kadmiyum Çubuk, Kadmiyum Metal Çubuk, Cd Çubuk
English Names Cadmium Rod, Cadmium Metal Rod, Cd Rod
Chemical Names Cadmium; Elemental Cadmium; Cadmium Metal
CAS Number 7440-43-9
EC Number 231-152-8
Atomic Number 48
Atomic Symbol Cd

SECTION 19: SUMMARY TABLE

Parameter Value
Product Cadmium Rod (Cd)
CAS Number 7440-43-9
Atomic Number 48
Atomic Weight 112.41 g/mol
Appearance Silvery-white metallic rod
Density 8.65 g/cm³
Melting Point 321°C
Boiling Point 767°C
Hardness (Mohs) ~2.0
Magnetic Properties Diamagnetic
Primary Function Battery material, plating, neutron absorber
Main Applications Ni-Cd batteries, corrosion plating, nuclear reactors, alloys, pigments
Shelf Life Unlimited
GHS Signal Word DANGER
UN Number UN 2570
Carcinogenicity IARC Group 1; NTP Known human carcinogen
Toxicity Highly toxic; Accumulates in body (half-life 25-30 years)
Special Feature Soft; Ductile; High neutron capture cross-section; Low melting point; Very toxic

SECTION 20: CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

  • Causes cancer (H350). IARC Group 1; NTP Known human carcinogen. AVOID exposure at ALL costs.

  • Toxic if swallowed (H301). Toxic if inhaled (H331). AVOID ingestion and inhalation.

  • Suspected of causing genetic defects (H341). Avoid exposure.

  • May damage the unborn child (H360D). Handle with extreme caution.

  • Causes damage to organs through prolonged or repeated exposure (H372). Kidney damage, bone demineralization (itai-itai disease).

  • Very toxic to aquatic life (H400/H410). AVOID environmental release.

  • Accumulates in the body. Biological half-life ~25-30 years.

  • Non-combustible but powder form may be combustible.

  • Incompatibilities: Keep away from strong oxidizing agents, acids, halogens, sulfur, selenium, tellurium, and moisture.

  • Hygiene Requirement: Contaminated clothing should not be allowed out of the workplace. Separate work clothing required.

  • Store separately from food and feed. Store locked up.

BEST PRACTICE RECOMMENDATIONS:

  • Ni-Cd Battery Production: Use as electrode material in nickel-cadmium batteries; High energy density; Long cycle life; Low temperature performance; Maintain strict purity specifications; Implement recycling systems.

  • Corrosion Plating: Use cadmium plating to protect steel and other metals from corrosion; Aerospace and marine applications; Acts as sacrificial anode; Ensure proper waste management.

  • Nuclear Applications: Use as neutron absorber in control rods for nuclear reactors; High neutron capture cross-section; Nuclear safety systems; Requires strict safety protocols.

  • Handling: Use ONLY in well-ventilated areas or under fume hoods; AVOID dust generation at ALL costs; Wear chemical-resistant gloves, protective goggles, face shield, and NIOSH-approved HEPA-filtered respiratory protection.

  • Personal Protective Equipment: Wear impermeable gloves (nitrile, neoprene, butyl), chemical safety goggles, full-face shield, protective clothing, and NIOSH-approved cadmium fume/dust respirator (HEPA-filtered).

  • Hygiene: Do not eat, drink, or smoke when using; Wash hands thoroughly after handling; Do not take contaminated working clothes home; Shower at the end of the work shift; Regular blood/urine cadmium level monitoring.

  • Storage: Store in tightly closed, properly labeled containers in dry conditions; Store separately from food and feed; Keep away from acids and oxidizing agents; Store locked up; Regular monitoring for cadmium contamination.

  • Spill Response: AVOID raising dust; Wear full PPE; Vacuum or wet-sweep (DO NOT dry sweep); Place in properly labeled closed containers; Do not allow to enter drains or waterways; Decontaminate the affected area properly.

  • Disposal: Dispose of in accordance with local, regional, and national regulations; Cadmium is regulated as hazardous waste; Do not discharge into sewers or water sources; Use licensed waste disposal facilities.

SPECIAL NOTE ON ITAI-ITAI DISEASE (CADMIUM POISONING):

Cadmium poisoning (itai-itai disease) is a serious health condition:

  • Symptoms: Bone demineralization (osteomalacia); Severe bone pain; Kidney damage; Calcium loss; Difficulty walking; Bone fractures

  • Source: Prolonged cadmium exposure (especially through food and water); Environmental contamination

  • Body: Cadmium accumulates in kidneys and bones (half-life 25-30 years)

  • Prevention: AVOID exposure at ALL costs; Use appropriate PPE; Regular health check-ups; Environmental controls

SPECIAL NOTE ON CADMIUM ALTERNATIVES:

Due to cadmium toxicity, alternatives are being developed for many applications:

  • Ni-Cd Batteries: Nickel-metal hydride (NiMH) and Lithium-ion (Li-ion) batteries

  • Corrosion Plating: Zinc, aluminum, nickel plating

  • Pigments: Organic pigments, zinc and titanium-based pigments

  • Semiconductors: Alternatives to cadmium telluride (CdTe) solar cells

  • Neutron Absorption: Boron, hafnium, gadolinium

LEGAL DISCLAIMER:

The information provided in this document is based on our current knowledge and experience and is presented in good faith. However, as all conditions of use are beyond our control, this document does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing suitability for their own applications. For complete safety, storage, handling, transportation, waste, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.

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