{"id":15593,"date":"2026-06-19T15:35:55","date_gmt":"2026-06-19T08:35:55","guid":{"rendered":"https:\/\/pmac.asia\/?p=15593"},"modified":"2026-06-19T15:35:55","modified_gmt":"2026-06-19T08:35:55","slug":"15593","status":"publish","type":"post","link":"https:\/\/pmac.asia\/en\/15593\/","title":{"rendered":""},"content":{"rendered":"

In the gold electroplating industry, the quality of the plated layer depends heavily on the gold source used in the plating solution. Among the various gold materials available today, PGC (Potassium Gold Cyanide)<\/strong> is considered the most important compound and is virtually indispensable in the production of professional gold plating solutions.<\/p>\n

So, what is PGC, what is its chemical formula, and why does it play such a crucial role in the gold plating industry? Let’s explore in detail below.<\/p>\n

I. What Is PGC?<\/h1>\n

PGC stands for Potassium Gold Cyanide<\/strong><\/a>, a gold-containing compound widely used in the gold electroplating industry because of its ability to provide a stable source of gold ions during the electroplating process.<\/p>\n

Basic Information About PGC<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Property<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
English Name<\/td>\nPotassium Gold Cyanide<\/td>\n<\/tr>\n
Common Name<\/td>\nPotassium Gold Cyanide Salt<\/td>\n<\/tr>\n
Abbreviation<\/td>\nPGC<\/td>\n<\/tr>\n
Chemical Formula<\/td>\nKAu(CN)\u2082<\/td>\n<\/tr>\n
Molecular Weight<\/td>\n288.10 g\/mol<\/td>\n<\/tr>\n
Theoretical Gold Content<\/td>\nApproximately 68.2% Au<\/td>\n<\/tr>\n
Physical Form<\/td>\nWhite crystalline powder or crystals<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

In electroplating solutions, PGC serves as the primary source of gold ions (Au\u207a). These ions are deposited onto metal surfaces through electrolysis, forming a high-quality gold coating. Without PGC, producing stable and high-performance gold plating solutions for industrial applications would be extremely difficult.<\/p>\n

II. Composition and Characteristics of PGC Gold Salt<\/h1>\n

To understand why PGC is so widely used in electroplating, it is important to examine its chemical structure and unique properties.<\/p>\n

1. Chemical Structure<\/h2>\n

PGC has the chemical formula: KAu(CN)\u2082. <\/strong>Where:<\/p>\n