{"id":15770,"date":"2026-07-06T16:50:04","date_gmt":"2026-07-06T09:50:04","guid":{"rendered":"https:\/\/pmac.asia\/?p=15770"},"modified":"2026-07-06T16:50:04","modified_gmt":"2026-07-06T09:50:04","slug":"how-is-pgc-68-2-different-from-ready-to-use-gold-plating-solutions","status":"publish","type":"post","link":"https:\/\/pmac.asia\/en\/how-is-pgc-68-2-different-from-ready-to-use-gold-plating-solutions\/","title":{"rendered":"How Is PGC 68.2% Different from Ready-to-Use Gold Plating Solutions?"},"content":{"rendered":"

In gold electroplating, the gold source plays a critical role in building and maintaining the plating electrolyte. Today, manufacturers generally consider two common options: using PGC 68.2% (Potassium Gold Cyanide) as the gold source to formulate their own plating solution, or using a ready-to-use gold plating solution that has already been prepared by the manufacturer.<\/p>\n

Each option offers distinct advantages. Ready-to-use solutions reduce preparation time, while PGC 68.2% provides greater flexibility in controlling the bath composition and developing a plating process tailored to specific production requirements.<\/p>\n

So, what exactly is PGC 68.2%, how does it differ from ready-to-use gold plating solutions, and which option is more suitable for your manufacturing process? This article explains the differences based on electroplating principles to help you make an informed decision.<\/p>\n

I. What Is PGC 68.2%?<\/h2>\n

1. Definition<\/h3>\n

PGC 68.2% is Potassium Gold Cyanide (PGC), a gold salt used as a source of gold ions in various gold plating electrolytes. It is an essential raw material for formulating both neutral gold plating and acid gold plating solutions.<\/p>\n

Manufactured by Umicore, PGC 68.2% contains 68.2% gold and complies with the specified gold content standard. It is also produced under the Conflict-free Gold initiative, giving manufacturers greater confidence in sourcing gold from transparent and responsible supply chains.<\/p>\n

\"Figure

Figure 1: PGC 68.2% Gold Salt<\/em><\/p><\/div>\n

>>> Related article:<\/strong> What Is Gold Plating Salt? The Role of PGC in Gold Plating Baths<\/em><\/a><\/p>\n

2. Characteristics and Usage<\/h3>\n

Unlike a complete plating bath, PGC 68.2% is not a ready-to-use electrolyte. Instead, it serves as the gold source that is combined with other chemical components to formulate a gold plating solution suitable for specific plating processes.<\/p>\n

PGC 68.2% dissolves rapidly in water, generates no dust, is not light-sensitive, and does not decompose in air. These characteristics make storage and handling more convenient during solution preparation.<\/p>\n

In addition, the product features tightly controlled impurity levels:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Element<\/th>\nContent<\/th>\nEquivalent<\/th>\n<\/tr>\n<\/thead>\n
Ag<\/td>\n0.002%<\/td>\n20 ppm<\/td>\n<\/tr>\n
Cu<\/td>\n0.0001%<\/td>\n1 ppm<\/td>\n<\/tr>\n
Cr<\/td>\n0.0002%<\/td>\n2 ppm<\/td>\n<\/tr>\n
Fe<\/td>\n0.0001%<\/td>\n1 ppm<\/td>\n<\/tr>\n
Na<\/td>\n0.04%<\/td>\n400 ppm<\/td>\n<\/tr>\n
Ni<\/td>\n0.0002%<\/td>\n2 ppm<\/td>\n<\/tr>\n
Pb<\/td>\n0.0003%<\/td>\n3 ppm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Controlling impurities in raw materials is an important consideration when formulating plating electrolytes, as the quality of incoming materials can influence bath consistency and overall process control.<\/p>\n

3. Applications of PGC 68.2%<\/h3>\n

PGC 68.2% is used to formulate gold plating electrolytes for a wide range of industries, including:<\/p>\n