High Purity 99.99% Electronic Grade Ammonium Persulfate (APS) for PCB Etching and Semiconductor Manufacturing

Premium ultra-high-purity oxidizing agent engineered for modern electronics manufacturing with guaranteed minimum purity of 99.99%. Meticulously refined to eliminate trace metals, halides, and particulate contaminants that compromise semiconductor device and PCB performance.

• Ultra-High Purity (99.99% Min): Strictly controlled impurity limits for transition metals and halides eliminate ionic contamination, dendrite growth, and surface defects
• Precision Etching Capability: Linear, predictable etch rates maintain tight tolerances for high-density interconnect boards and semiconductor packaging
• Clean Oxidizing Action: Decomposes into innocuous byproducts without corrosive chloride residues, supporting greener manufacturing processes
• Superior Surface Activation: Creates uniform microscopically roughened surfaces to improve adhesion of photoresists, solder masks, and metal deposition layers

Solution Preparation: Prepare as 15-25% (w/v) aqueous solution heated to 40-50°C (104-122°F) for optimal etch rates of 0.5-1.5 µm per minute.

• Etch Rate Monitoring: Maintain copper content below 30 g/L with regular specific gravity analysis
• Temperature Control: Use thermostatically controlled bath; avoid temperatures above 60°C
• Agitation: Implement spray etching or forced circulation for uniform etching

Stabilization: Working solutions should be replenished or replaced based on throughput. Fresh batch processing recommended for highest purity applications.

As a strong oxidizer, strict adherence to safety protocols is required:

• Personal Protective Equipment (PPE): Chemical-resistant gloves, safety goggles, protective aprons, and NIOSH-approved respirators for dust areas
• Ventilation: Use in well-ventilated areas or under local exhaust ventilation
• Storage: Store in cool, dry environment below 30°C (86°F) away from reducing agents, alkalis, and combustible materials
• Incompatibility: Avoid contact with strong reducing agents, finely divided metals, and organic compounds
• First Aid: For skin contact, wash thoroughly with soap and water. For eye contact, rinse with water for 15 minutes and seek medical attention

Packaged under clean conditions to preserve ultra-high purity:

• 25 kg Fiber Drums with polyethylene liners
• 25 kg Multi-layer Kraft Paper Bags with moisture barrier
• Custom packaging available upon request

All containers include clear labeling with lot numbers, manufacturing dates, and full traceability documentation including Certificate of Analysis (CoA) for each batch.

High Purity Electronic Grade Ammonium Persulfate (99.99% Min) delivers the purity, consistency, and performance required to meet exacting industry standards for semiconductor manufacturing and PCB fabrication. Ensures precise etch rates, flawless surface finishes, and reliable performance for high-reliability electronic components.