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| Sr No. | Property | Coolant Colorants | |||
|---|---|---|---|---|---|
| Green | Â Red | Â Blue | Â Yellow | ||
| 1 | Powder Appearance | Dark Green | Dark Red | Blue | Yellow |
| 2 | Moisture | 2-3% | 2-3% | 2-3% | 2-3% |
| 3 | pH | 8.5 – 9% | 8.5 -9 % | 7.5 -8% | ≈8 |
| 4 | Solubility in Water | 30% | 20% | 10% | 10% |
| 5 | Chlorides | 0.2% max | 02% max | 02% max | 02% max |
| 6 | Hue in water | Green Fluorescence | Red Fluorescence | Greenish Blue | Lemon Yellow |