Appearance White or almost white powder Identification UV absorption: 280-284nm Assay,HPLC 99.5%min Related substances 0.5% max Loss on drying 1.0% max Residue on ignition 0.5% max Heay metals 20ppm max

Item Specification Appearance White Powder content ≥98%（ HPLC） Odor & Taste Special Sour Lost on drying ≤5.0% Max Mesh size NLT 98% through 80 mesh Heay metal PPM ≤10.00 (Arsenic) PPM ≤1.00 Ash Content ≤2.00% Total Bacteria ≤1000cfu/g Yeast Mold ≤100cfu/g Salmonella Negative E.Coli Negative Solvent residences ≤0.05%

Appearance White to light yellow crystal or light yellow to brown clear liquid Assay 99%miin Impurities 1.0% max Water(K.F) 0.2% max

Appearance Yellow to brown crystalline powder Assay 98%min Melting point 210℃ min

white to light yellow crystalline powder, 98% max, Glyoxal: 0.2% max,

Appearance Colorless to light yellow liquid Assay 99%min

Appearance Light yellow to light brown liquid Assay,GC 99%min Water 0.2% max

Appearance Colorless to light yellow liquid Assay 99%min Water 0.5% max

Appearance Colorless, transparent liquid Assay 99%min Relative density 1.017-1.020 Refractive index 1.5290-1.5350 As content 0.0001% max Heay metals(as Pb) 0.0001% max

Appearance White to light yellow crystals or flakes Assay(by GC) 99.5%min Melting point 47-49℃ Volatiles 0.1% max Color,APHA 60max

Appearance Colorless clear liquid Assay 99.8%min Crystallization point 18.1℃min Transmittance(400nm) 96.0%min Refrative index(20℃) 1.4775-1.4790 Moisture 0.1% max

Appearance White crystal Assay 99.5%min Melting point 207~212℃ Moisture 0.3% max Ash 0.05% max Calcium 200ppm max Transparency 100%