EVAN’S BLUE CAS NO.314-13-6

PRODUCT NAME     :           EVAN’S BLUE      

CAS NO.                    :           314-13-6

C.I. NO.                       :           23860

Molecular Formula   :           C34H24N6 Na4O14S4

Formula Weight        :           960.82

Appearance               :           Black Powder

Structure                    :          

BATCH NO.               :           EVB-1911

Mfg Date                    :           Nov  2019

Exp Date                    :           Oct  2023

 TESTS                                               RESULTS                               STD /LIMIT

Appearance                                       Black powder                                    (passes test)

Solubility 0.1% (in dist. water)        Clear blue solution               (passes test)

Absorptivity 1%,1cm                       

(On dried substance)

at l max .609.0nm                          852                                          (>800)   

Dye content                                                  

(by spectrophotometry)                   88%                                         (< 85%)

Loss on drying (110⁰C)                    6.20%                                      (<10%)