Product Datasheet and Specification
00101
Alizarine Red S AR (Sodium alizarine sulphonate)
C.I.No. 58005 Acid base indicator use in analysis of metals Sodium Alizarine Sulphonate
CAS : 130-22-3
HS Code : 2914.79900
Molecular Formula : C14H7NaO7S
Molecular Weight : 342.30
Shelf Life : 60 Months
Specifications
Appearance
Yellow coloured powder |
Dye content
Min 70.0% |
| Transition range |
pH 4.3-6.3
Yellow-Pink |
pH 9.4-12.0
Brown orange-Violet |
Solubility (0.1% in water)
Clear solution |
Absorption maxima in 0.1 N NaOH
553-559 nm |
Absorption maxima in 0.1 N NaOH
592-599 nm |
Absorptivity (A1%/1cm at 556 nm )
Min 350.0 |
Absorptivity (A1%/1cm at 595 nm )
Min 325.0 |
Loss on drying (at 110°C)
Max 5.0% |