24k Pure Gold Solution - TDS
Gold Plating Services’ 24k Pure Gold Solution is an extremely efficient, (cathode efficiency 98%+ ), neutral pH, water clear gold plating solution designed to produce a gold electro-deposit of 99.9+% purity to virtually any desired thickness for surfaces used in the medical, semi-conductor, electronic, and PWB industries where soft, high purity gold is required. Note: Due to the grain structure of this type of gold deposit the reflective qualities of the surface will become noticeably “matt” with increased thickness.
Electrodeposited gold will be equivalent to Type III, Grade A, specifications as indicated in MIL-DTL- 45204D, as follows;
Temperature 62° - 71° C (145° – 160° F)
Anode to Cathode Ratio 2:1
Specific Gravity 10 – 16 Be
PH (electrometric) 5.8 – 6.4 (optimum 6)
Time to deposit 0.0001’’ (2.5 micron) 13 minutes at 3 ASF
Replenishment 1 Troy oz. Pure Gold Replenisher Solution Every 300-AM.
Efficiency 115-mg/ampere minute
Hardness 60 – 80 Knoop
Current Density 3 amperes per square foot, (20 ma/in2 )
Anode Platinized Niobium or platinized Titanium
Agitation Moderate relative Cathode to solution movement
NOTES: To insure consistency of deposit, the following operating conditions should be controlled; METAL CONTENT, maintain within 20% of specified operating conditions. TEMPERATURE, maintain within 5% of specified operating conditions. PH, maintain within 5% of specified operating conditions. CURRENT DENSITY, Maintain within 5% operating conditions.