Sodium Naphthol Sulfonate size:500 GM 9 CHROMATOGRAPHIC PURITY TO PASS

9 CHROMATOGRAPHIC PURITY TO PASS TEST TO PASS TEST LOSS ON DRYING 0

Test Specification Min Max APPEARANCE TO PASS TEST TO PASS TEST ASSAY (GC) 99

Test Specification Min Max APPEARANCE WHITE CRYSTALS WHITE CRYSTALS MELTING POINT 130 - 136 C 130 - 136 C

ANHYDROUS BASIS) 98

0 % COLOR (APHA) 10 SUBSTANCES REDUCING PERMANGANATE TO PASS TEST TO PASS TEST CARBON DIOXIDE (CO[@2@]) 20 ppm CHLORIDE (Cl) 500 ppb PHOSPHATE (PO[@4@]) 500 ppb TOTAL SULFUR (as SO[@4@]) 1 ppm ARSENIC AND ANTIMONY 50 ppb Aluminum (Al) 300 ppb BORON (B) 100 ppb CALCIUM (Ca) 300 ppb CHROMIUM (Cr) 200 ppb COPPER (Cu) 100 ppb GOLD (Au) 300 ppb IRON (Fe) 100 ppb LEAD (Pb) 200 ppb MAGNESIUM (Mg) 300 ppb MANGANESE (Mn) 200 ppb NICKEL (Ni) 100 ppb POTASSIUM (K) 300 ppb SODIUM (Na) 300 ppb TIN (Sn) 200 ppb TITANIUM (Ti) 300 ppb ZINC (Zn) 300 ppb PARTICLE COUNT (>/=1

Sodium Naphthol Sulfonate size:500 GM 9 CHROMATOGRAPHIC PURITY TO PASSTest Specification Min Max ASSAY 97%