China Factory Supply Dl-Methionine Feed Addtitive CAS 59-51-8 with Low Price, Find details about China Dl-Methionine, China Supply Dl-Methionine from Factory Supply Dl-Methionine Feed Addtitive CAS 59-51-8 with Low Price
Testing Item | Standard | Result |
Appearance | White or light grey | Light grey crystal |
DL-Methionine/% | ≥99.00 | 99.18 |
Specific Rotation | +22.4° -F16 +24.8 ° | +23.7 ° |
Residue on Ignition/% | ≤0.40 | 0.03 |
Loss on Drying/% | ≤0.30 | 0.10 |
Chloride(NaCl)/% | ≤0.20 | 0.10 |
Heavy Metal(Pb)/% | ≤0.0020 | 0.0012 |
Arsenic(As)/% | ≤0.0002 | 0.0001 |
Iron(Fe)/% | ≤0.0030 | 0.0007 |
PH | 5.6~6.1 | confirm |