Table 5.

Stability of purified mint silver in conductivity water at room temperature

Timea	Initial mass in a vacuum	Final mass in a vacuum	Estimated surface area	Rate of change in mass
Anode No. 1
Hours	Grams	Grams	cm2	μg/hr	(μg/hr)cm2
18	9.542576	9.542565	6.3	−0.61	−0.097
22	5.833363	5.833374	5.0	+.50	+.100
75	5.833374	5.833373	5.0	−.01	−.002
Anode No. 2
236	8.174357	8.174354	6.6	−0.01	−0.002
21	8.174343	8.174342	6.6	−.05	−.007
16	8.174342	8,174348	6.6	+.37	+.057
16	8.174077	8.174061	6.6	−1.00	−.151

^aTime of immersion of silver in water.