COA Center

OR

MSDS/SDS Center

Advanced Search

ALIZARINE RED S AR

C.I.No. 58005 Acid base indicator use in analysis of metals
Sodium Alizarine Sulphonate

COAs

Packings

25 g (00025)

100 g (00100)

1PB1200060 1PB1200200
Print friendly version
Article No. 00861 Grade AR
Purity CAS No. 130-22-3
Molecular Formula C14H7NaO7S Molecular Weight 342.3
H.S. Code 2914.7990 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Red powder
Melting point/ Freezing point [°C] 430°C Boiling point [°C] 287 - 289°C
Initial boiling point [°C] 287°C Final boiling point [°C] 289°C
Solubility in water [% weight] Sparingly soluble in water

Specifications

Appearance Yellow to orange to brown 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 (0.1 mol/L in NaOH) λmax1 553-559 nm Absorption maxima (0.1 mol/L in NaOH) λmax2 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%

Safety Information and Hazard Symbols

Exclamation Mark
Symbol: GHS07
 Signal Word: Warning
 Hazardous Statement: H315-H319-H335
 Precaution Statement: P261-P302+P352-P305+P351+P338
Revision Date: 04-Aug-2023

Download MSDS & COA on your Mobile through LOBACHEMIE APP