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 |