ALIZARINE RED S
ALIZARINE RED S AR
C.I.No. 58005Acid base indicator use in analysis of metals
Short Name: ALIZARINE RED S
Synonym: Sodium Alizarine Sulphonate
Basic Details
Article No.
LG0164
Grade
AR
Purity
CAS No.
130-22-3
HS Code
2914.7990
Shelf Life
60 Months
Packings Avialable
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
Chemical Specifications
Appearance
Red 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 & Hazard Symbols
Symbol
GHS07
Signal Word
Warning
Hazardous Statement
H315-H319-H335
Precaution Statement
P261-P305 + P351 + P338