Application of Electronic-grade Potassium Organic Acid for Anti-corrosion of Electronic Components

Electronic parts including resistors, capacitors, chips, connectors and PCBs are vulnerable to moisture erosion, acid and alkali exposure, as well as salt spray corrosion throughout production, storage and service cycles. These environmental stresses commonly cause pin oxidation, contact rusting, PCB leakage and gradual performance degradation, greatly undermining product reliability and service lifespan. Traditional anti-corrosion auxiliaries often suffer from high impurity content, poor material compatibility and limited protection durability, and may even damage precision electronic structures. To meet stringent SEMI and ISO electronic-grade specifications, two professional potassium organic acid products are developed as core anti-corrosion materials, fully adaptable to the full manufacturing workflow of high-precision electronic components.

1. Electronic-Grade Potassium Acetate (≥99.5% Purity, SEMI Compliant, Metal Ions ≤1ppb)

Core Functions

This substance is primarily used for anti-corrosion passivation of component pins and PCB surfaces, serving as a specialized corrosion inhibitor and cleaning agent for electronic components. It creates a tight, continuous passive layer that successfully prevents moisture intrusion, salt spray damage, and metal oxidation. In the meantime, it keeps cleaning solutions' pH levels stable to prevent surface oxidation while cleaning. It efficiently extends component shelf life and operational durability by integrating cleaning and anti-corrosion treatment with precision connections, chip leads, and different PCBs.

Product Strengths

The material, which is produced with ultrahigh electronic-grade purity, is free of hazardous impurities, heavy metals, and particulate matter, guaranteeing no interference with electrical performance or component stability. Over 72 hours of approved salt spray resistance are supported by its homogenous, dense passivation film, which provides long-term protection. Excellent water solubility allows it to dissolve entirely without sediment, making it suitable for immersion, soaking, and spraying procedures. It leaves no corrosion or residue and is completely compatible with PCB substrates, copper, tin, and aluminum. It is perfect for producing high-precision electronic components in large quantities and is completely compliant with international standards for electronic manufacturing.

Application Guidelines

For passivation against corrosion: Make a 5%–10% aqueous solution, submerge the components for five to ten minutes, rinse with deionized water, and then dry at eighty degrees Celsius. To achieve simultaneous surface cleaning and anti-corrosion protection, add 0.8%–1.5% by weight to the cleaning solution formulation to bring the pH range to 7.0–8.5. To avoid impurity contamination, all procedures must take place in a cleanroom.

Precautions

This product is highly hygroscopic. It requires sealed, clean storage at 10-25°C with relative humidity below 40%. Direct blending with strong acid reagents is forbidden, as it will compromise purity and anti-corrosion performance. Overdose will result in excessively thick passivation films, which may weaken contact conductivity, so precise dosing control is essential.

2. Electronic-Grade Potassium Formate (≥99.0% Purity, Electronic-Grade Standard, Zero Harmful Impurities)

Core Functions

This premium anti-corrosion enhancer is tailored for high-end precision components such as advanced chips, micro connectors and flexible PCBs. It optimizes the compactness and adhesion of passive films, significantly improving components’ resistance to moisture, salt spray and chemical corrosion. When used as a coating auxiliary, it strengthens the bonding force between anti-corrosion coatings and component surfaces to prevent peeling and delamination. It is widely applicable for long-term anti-corrosion treatment of consumer electronics, industrial control hardware and automotive electronic components.

Product Strengths

Ultra-low impurity electronic-grade formulation ensures no impact on component precision and electrical properties. It greatly upgrades anti-corrosion efficiency, extending salt spray resistance to more than 96 hours and substantially prolonging product service life. Featuring outstanding thermal stability, it suits post-soldering treatment without decomposition or harmful emissions. It disperses rapidly in passivation solutions and functional coatings with excellent system compatibility. Residue-free and biodegradable, it fully meets green manufacturing requirements for the electronics industry.

Application Guidelines

For passivation treatment: add 0.5%-1.2% by mass into the solution and stir evenly for immersion or spray passivation. For coating enhancement: incorporate 1.0%-2.0% by mass into anti-corrosion coatings and mix thoroughly before surface application. For ultra-precision parts, maintain consistent solution concentration to avoid local over-concentration issues.

Precautions

Due to strong hygroscopicity, the product must be stored in sealed, light-proof packaging. Use immediately after opening to avoid moisture absorption and caking that affects dosing accuracy. Keep away from strong oxidizers to prevent chemical reactions. It cannot be used alone for direct anti-corrosion protection of high-voltage components and must be applied together with professional anti-corrosion coatings.

3. Industrial Application Case

A leading manufacturer of consumer electronic components, specializing in chips, connectors and PCB exports, previously faced prominent production challenges. Traditional anti-corrosion materials contained excessive impurities and offered limited protection, leading to a component oxidation rate of 8.3%. The unstable product quality also caused repeated certification and export barriers for European and American markets.

The enterprise adopted a combined protection solution: electronic-grade potassium acetate for routine cleaning and basic passivation, paired with potassium formate for advanced anti-corrosion reinforcement. After process upgrading, the component oxidation rate dropped sharply to 0.4%, and salt spray resistance was upgraded from 48 hours to 96 hours. The product qualification rate increased from 92.5% to 99.3%.

The manufacturer successfully passed multiple international electronic industry certifications, with export orders rising by 58%. This dual anti-corrosion system is now widely deployed in global consumer electronics and automotive electronics production lines, earning consistent recognition from international buyers.