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        HD ERYTHROSINE SUPRA    REF : IS - 1697 - 1994
     
Common name : Erythrosine
Synonyms : F. D. & C. Red No. 6
  : C. I. Food Red No. 3
Colour Index Number (1971) : 45430
Indian Standards Specification : IS 1697 - 1974
Solubility in water at 300C : 7.5% (approx.)
Fastness properties    
     Light : Fair
     Preservatives    
     Benzoic Acid  : Poor
     Sulphur Dioxide : Good
     Heat (2200F., 1050C.) : Good
     Baking (4000F., 2050C.) : Fair
     Fruit Acids (Citric & Tartaric) : Poor (precipitated)
     Alkalies : Fair (becomes bluer)
 
 Nos.: Characteristics:    Requirements:
   
 1.     Total dye content, corrected for sample dried at
         105° ± 1°C for 2 hours, percent by mass.		    Min. 87
   
 2.     Volatile matter at 135°C and chloride and sulphate
         expressed as sodium salt, percent by mass.		    Max. 13
   
 3.     Water insoluable matter, percent by mass.    Max. 0.2
   
 4.     Combined either extracts (alkaline), percent by mass.    Max. 0.2
   
 5.     Subsidiary dyes, percent by mass.    Max.  4
   
 6.    Organic Compounds other than colouring matter,
        percent by mass.

   Max.  0.2
   Max.+0.2
   
          METALS:  
   
 7.    Lead, mg./kg.    Max. 10
   
 8.    Arsenic, mg./kg.    Max. 3
   
 9.    Heavy Metals, mg./kg.    Max 40
   
 10.  Zinc, mg./kg.    Max 0.5
   
 11.  Sodium Iodide, persent by mass.    Max 0.1
   
 12.  Fluorescine mg./kg.    Max 20
        
 
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