Description

1. Bath Make-up:

Name	Quantity	Unit
LW-03	20	g/L
Nickel Sulfate (NiSO4.6H2O)	20	g/L
Stannous Sulfate (SnSO4)	6-10	g/L (light color:6g/L,dark color:10g/L )
Sulphuric Acid Reagent	16	g/L
Deionized Water	Balance

2. Operating Conditions:

Name	Quantity	Unit
Sulphuric Acid  (H2SO4)	16-25	g/L
Stannous Sulfate (SnSO4)	6-15	g/L
Voltage	16-19	V
Temperature	18-25	℃
PH	0.5-1.2
Time	Depends on the depth of color

3. Solution Maintenance:

1) Analyze the concentration of free sulphuric acid, stannous sulfate, nickel sulfate and total acid daily. Maintain the concentration of free sulphuric acid above 16g/L and total acid around 40g/L. To increase the stannous sulfate by 1 kg, add 1.5 kg of LW-03.

2) The pure water is suggested be added slowly with stirring to prevent the hydrolysis of stannous sulfate and cause solution turbidity.

3) There will be white precipitates in long-term production. So the bath should be filtered and cleaned regularly.

4. Packaging and Storage:

Package: Carton (30kg/ carton,25kg/bag)

Storage: Suggested to store in a cool, dry and well ventilated place; away from fire and heat source , and avoid light storage.