Features:
1) Assay: 99.0%^100.5%
2) Identification: positive
3) Melting Point: About 190.7^190.8
4) Clarity of Solution: Clear
5) Color of Solution: d BY7
6) PH Value: 2.1^2.6 ( in 2% solution)
7) Oxalic Acid: d 0.2%
8) Heavy Metals: d 5 ppm
9) Ferrite: 2 ppm
10) Arsenic:  3 ppm
11) Hg:  1 ppm
12) Lead:  5 ppm
13) Sulphate Ash: d 0.1%
14) Copper Salt: d 5 ppm
15) Specific Rotation: +20.5?#65374;+21.5?Organic Volatile
16) Impurities: meets the requirements
17) Particle Size:
a) 100% pass thru 40 mesh
b) 50% pass thru 80 mesh
18) Standard: BP2002 / USP26

Packing: 25kg/carton with PE inner