Cadmium Oxide Powder ACS Reagent

Product Overview

Cadmium Oxide Powder ACS Reagent is a high-purity inorganic oxide with the chemical formula CdO, offered in ACS Grade to meet stringent analytical and industrial requirements. The material is a fine, stable solid that exhibits a characteristic yellow to red hue, with a typical Cd content expressed as CdO equivalent. The product is designed for precision applications where trace metal control, low residue, and consistent color and conductivity are essential, such as ceramics, electronics fabrication, and energy-related manufacturing. Its purity is verified by gravimetric and ICP-OES methods, with an assay range of 99.0–100.5 wt% (typical 99.7 wt%), supporting reproducible results in high-temperature processes and coordinated quality systems per ACS Reagent standards.

The ACS Cadmium Oxide is engineered for reliability in demanding environments, including ceramic glazes, semiconductor materials, and cadmium-based battery components. The product maintains a low residue after ignition and demonstrates controlled impurity levels that are compatible with regulatory expectations for industrial use. The material is supplied under conditions that emphasize minimal moisture uptake and oxidation control, ensuring consistent performance across batches and alignment with customer process controls in ceramics, coatings, and electronics manufacturing.

Key Properties

• Assay wt %: min 99, max 100.5, typical 99.7, test method Gravimetric/ICP-OES (Cd content reported as CdO equivalent)
• Chemical Formula: CdO
• Molecular Weight: 128.41 g/mol
• Specific Gravity (20°C): min 7.5, max 7.95, typical 7.75, test method Pycnometer or density determination
• Residue % (after ignition): max 0.02, typical 0.01, test method Gravimetric residue after ignition (1400°C to constant weight) or ashing
• Color (APHA/Hazen): max 12, typical 6, test method APHA/Hazen visual comparison
• Chloride (Cl) ppm: max 50, typical 20, test method IC or argentometric titration
• Nitrate NO3 ppm: max 20, typical 5, test method IC
• Ammonium NH4 ppm: max 10, typical 2, test method IC
• Sulfate SO4 ppm: max 50, typical 20, test method IC
• Phosphate PO4 ppm: max 20, typical 5, test method IC
• Arsenic As ppm: max 0.5, typical 0.1, test method ICP-MS or ICP-AES
• Heavy metals (as Pb) ppm: max 5, typical 1, test method ICP-MS
• Iron Fe ppm: max 1, typical 0.2, test method ICP-OES or ICP-MS
• Copper Cu ppm: max 2, typical 1, test method ICP-OES
• Manganese Mn ppm: max 2, typical 0.5, test method ICP-OES
• Nickel Ni ppm: max 2, typical 0.5, test method ICP-OES
• Lead Pb ppm: max 2, typical 0.5, test method ICP-OES
• Zinc Zn ppm: max 2, typical 0.5, test method ICP-OES
• Aluminum Al ppm: max 1, typical 0.3, test method ICP-OES
• Chromium Cr ppm: max 1, typical 0.2, test method ICP-OES
• Cobalt Co ppm: max 0.5, typical 0.1, test method ICP-OES
• Calcium Ca ppm: max 1, typical 0.2, test method ICP-OES
• Magnesium Mg ppm: max 2, typical 0.5, test method ICP-OES
• Potassium K ppm: max 1.5, typical 0.3, test method ICP-OES
• Sodium Na ppm: max 1.5, typical 0.3, test method ICP-OES
• Decomposition Temperature: Above 600°C

Common Applications

• Ceramic Glaze: Used as a pigment and flux in ceramic glazes to achieve desired colors and properties, with compatibility to glaze suspensions and high-temperature firing processes.
• Electronics Manufacturing: Serves as a component in the production of semiconductors and other electronic materials, where purity and trace metal control are critical.
• Battery Production: Utilized in the manufacture of cadmium-based batteries, providing high energy density and stable oxide performance under charge-discharge cycles.
• Catalysis: Acts as a catalyst or catalytic additive in various chemical reactions, enhancing reaction rates and selectivity in industrial processes.
• Pigment in Paints: Incorporated as a pigment in paints and coatings for color properties and ultraviolet stability in specific pigment systems.

Safety Precautions

Handle Cadmium Oxide Powder ACS Reagent in a well-ventilated area using appropriate PPE, including chemical-resistance gloves, protective goggles or face shield, and suitable respirators when dust generation is possible. Store in a cool, dry place away from moisture and incompatible materials, in HDPE or glass containers, with lids tightly closed to minimize dust accumulation. Maintain segregation from oxidizers and ensure proper dust control and housekeeping to prevent inhalation exposure and environmental release per SDS recommendations.

Emergency and exposure considerations follow established SDS guidance. In case of skin or eye contact, flush with water and remove contaminated clothing; seek medical attention if irritation persists. If inhaled, move to fresh air and obtain medical evaluation if symptoms occur. If swallowed, do not induce vomiting; seek immediate medical assistance. The product is classified under UN 1566 (Cadmium oxide) for transport, with appropriate packaging and labeling per regulatory requirements, including hazard statements H300, H350, and H361 for risk awareness.

Benefits

✔ High Purity ACS Grade – Meets stringent reagent specifications suitable for precise analytical and manufacturing workflows.
✔ Low Residue and Controlled Impurity Profile – Ensures compatibility with electronics, ceramics, and coatings where cleanliness governs performance.
✔ Stable Under Processing – Thermally stable above 600°C, enabling reliable operation in high-temperature applications such as glazes and battery materials.