ALIZARINE RED S AR (pH INDICATOR) (C. I. NO. 58005)*

ALIZARINE RED S AR (pH INDICATOR) (C. I. NO. 58005) ALIZARINE RED S AR (pH INDICATOR) (C. I. NO. 58005)
Article No. Grade Purity Cas no. Molecular Formula Molecular Weight H.S. Code Shelf Life
A0016500025 AR 130-22-3 C14H7NaO7S 342.3 2914.7990
 60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

Red powder

Melting Point/ Freezing point [°C]

430°C

Initial Boiling Point [°C]

287°C

Final Boiling Point [°C]

289°C

Boiling point [°C]

287 - 289°C

Solubility in water [% weight]

Sparingly soluble in water

Specifications

Appearance:

 Red powder

Absorptivity (A 1%/1cm; at lmax):

 Min 350.0

Solubility (0.1% in water):

 Clear solution

Absorption maxima in 0.1 N NaOH :

 553-559 nm

pH 9.4-12.0:

 Brown orange-Violet

pH 4.3-6.3 :

 Yellow-Pink

Loss on drying (at 110°C):

 Max 5.0%

Dye content (by spectrophotometry):

 Min 70.0%

Safety Information and Hazard Symbols

Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338
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Globally Harmonized System of classification and Labelling of Chemicals (GHS)

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