L-Ascorbic Acid is an important nutritional supplement for the feed industry.
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: ≤ BY7
6) PH Value: 2.1～2.6 ( in 2% solution)
7) Oxalic Acid: ≤ 0.2%
8) Heavy Metals: ≤ 5 ppm
9) Ferrite: ＜2 ppm
10) Arsenic: ＜ 3 ppm
11) Hg: ＜ 1 ppm
12) Lead: ＜ 5 ppm
13) Sulphate Ash: ≤ 0.1%
14) Copper Salt: ≤ 5 ppm
15) Specific Rotation: +20.565374 +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