ALIZARINE RED S

C.I.No. 58005
Sodium Alizarine Sulphonate

Article No.

00860

Grade

Purity

CAS No.

130-22-3

Molecular Formula

C₁₄H₇NaO₇S

Molecular Weight

342.3

H.S. Code

2914.7990

Shelf Life

60 Months

MSDS

Certificate of Analysis (COAs)

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

Packings

25 g (00025)
100 g (00100)

Specifications

Appearance	Yellow to orange to brown powder
Absorption maxima (λmax1)	592 - 599 nm (in 0.1 N NaOH)
Absorption maxima (λmax2)	554 to 558 nm (in 0.1 N NaOH)
Visual transition range	pH 3.5 (yellow) to pH 6.5 (pink), pH 9.4 (orange-brown) to pH 12.0 (violet)

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P302+P352-P305+P351+P338
Risk Statement: 36/37/38
Safety Statement: 26-36

Revision Date : 20-Jul-2023