Chemicals

Amount

M:L

1:10

Dyes

1%

2%

3%

4%

Glauber’s salt

35

40

50

55

Soda ash

10

12

14

16

Wetting agent (g/l)

1 g/l

Sequestering agent (g/l)

1 g/l

pH

10.5 ± 0.3

Temperature

60˚C

Time

45 min