Specification
Product Name PHENOL RED SODIUM SALT
Synonyms Phenolsulfonephthalein Sodium
CAS NO. 34487-61-1
Molecular Formula C19H13NaO5S
Formula Weight 376.36
Appearance Dark Reddish Brown Powder
Structure
   
Tests    Limits
Solubility 0.1% (dist. water)

- Clear Red Solution

Absorptivity 1% 1cm,
(pH6.5) at λ max.430.0 nm
(pH8.2) at λ max.558.0 nm


- 560-620

- 970-1100

Loss on drying at 110°C (1hr)

- < 5%

   
   
REVISED: 1-1-2012  
 
 
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