| Alizarin red S for microscopy 25GM | |||
| 10054SG025 | 900032515LV | ||
| For Microscopy | 9000325 | ||
| 130-22-3 | 90465 | ||
| C14H6Na2O7S | December 2022 | ||
| 364.24 | November 2027 | ||
| Sr.No. | Test | Result | Specification |
|---|---|---|---|
| 1 | Description | Yellow powder. | Yellow to orange powder. |
| 2 | Solubility | Complies | Soluble in water and alcohol. |
| 3 | Dye content (Spectrophotometry, on dry basis) | 79.4% | min. 70.00% |
| 4 | pH transition range (pH 4.3 - 6.3) | Complies | Brilliant yellow to pink |
| 5 | pH transition range (pH 9.4 - 12.0) | Complies | Brown orange to violet |
| 6 | Absorption, L max (pH 4.3) | 419nm | 418 - 424nm |
| 7 | Absorption, L max (pH 6.3) | 515nm | 514 - 520nm |
| 8 | Absorption, L max (pH 9.4) | 446nm | 445 - 451nm |
| 9 | Absorption, L max (pH 12.0) | 555nm | 554 - 558nm |
| 10 | Loss on drying,110°C | 3.40% | 8.00% max. |
Remarks: THE CAPTIONED BATCH MATERIAL COMPLIES WITH THE PRESCRIBED QUALITY OF THE ABOVE SPECIFICATION.
FINAR provides this analytical report in good faith and to the best of its knowledge. It should not be substituted for the users own raw material quality control.
| Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |
Computer Generated Report - Does not require Signature.
