DL Methionine,China RARUAN price supplier

CERTIFICATE OF ANALYSIS

DL-
Product Name: DL-Methionine: 300kg
Quantity: :
Batch No: 101014

Producing Date: 2010.10.14
date of Analysis: 2010.10.14
Expiry date: 2012.10.13
24
Reference standard: USP24

Item
Specifications
Results

Appearance
White crystalline powder
Conforms
(C5H11NO2S), % ()
Assay, % (on dried matter): 98.5~101.5 99.42

Clarity of solution Clear, colorless Clear, colorless
Transmittance, %: 98.0 99.1
pH
pH value (1g/100mL in water): 5.4~6.1 5.8
(Cl), % ≤
Chloride(as Cl), %: Max 0.05 <0.05
(Pb), %: ≤
Heavy metals (as Pb), %: Max 0.002 <0.002
(Pb), % ≤
Lead (as Pb), %: Max 0.001 <0.001
((As), % ≤
Arsenic(as As), %: Max 0.00015 <0.00015, % ≤
Sulfate(SO4): Max 0.02 <0.0
(NH4), % ≤
Ammonium (as NH4), %: Max 0.01 <0.01, % ≤
Loss on drying, %: Max 0.5 0.07
(), % ≤
Residue on ignition (as sulphate ash), % max: 0.1 0.06

Organic volatile impurities
Meets the requirement
Meets the requirement
24.
Conclusion: This product conforms to requirements of USP24 standard.