ALIZARIN RED S AR (pH Indicator) (C.I.NO.58005)
Sodium alizarine sulphonate
| Article No | A-00426 | ||
| CAS No | 130-22-3 | ||
| HSN Code | 38220090 | ||
| Purity | - | ||
| Grade | AR | ||
| Molecular Formula | C14H7NaO7S | ||
| Molecular Weight | 342.3 | ||
| Shelf Life | 5 years | ||
Packagings
25 gm
100 gm
| Article No | A-00426 | ||
| CAS No | 130-22-3 | ||
| HSN Code | 38220090 | ||
| Purity | - | ||
| Grade | AR | ||
| Molecular Formula | C14H7NaO7S | ||
| Molecular Weight | 342.3 | ||
| Shelf Life | 5 years | ||
25 gm
100 gm
| Appearance | Red powder | ||
| Loss on drying (110°C) | Max.5% | ||
| Initial Boiling Point | 287°C | ||
| Melting Point | 430 °C | ||
| Solubility In Water (% weight) | Sparingly Soluble in Water | ||
| Dye content (By Spectrophotometry on dried substance) | Min 70% | ||
| Transition range pH 4.3 - 6.3 | Brilliant yellow to pink | ||
| Transition range pH 9.4 - 12.0 | Brown orange to violet | ||
| Absorptivity (A1%/1cm at 556) | Min 350.0 | ||
| Absorptivity (A1%/1cm at 595) | Min 325.0 | ||
| Absorption maximum in 0.1N NaOH λmax1 | 553-559nm | ||
| Absorption maximum 0.1N NaOH λmax2 | 592-599nm | ||