Business Type:Trading Company
Product Certification&
Enterprise Certification
Country: China (Mainland)
Business Type:Trading Company
Tel: 86-21-60939051,60939771
Mobile: 18621677683
Tel: 86-21-60939051,60939771
Fax: 86-21-60939772
Province/state: Shanghai
City: Shanghai
Street: Room 2108, Building 2,No. 489 Zhengli Road,200433
MaxCard:
CAS NO.50-81-7
1.Factory Direct price
2.High quality standard
3.Multiple quantities choosing
4.Ready stock
5.Different delivery ways
Moreover,We have inventory readily available in our Los Angeles warehouse, ensuring faster delivery within the United States.
Item |
Specifications |
Results |
||
Characteristics |
White or almost white crystalline powder or colorless crystals |
White crystalline powder |
||
Identification |
IR: Complies |
Complies |
||
|
CA: Positive |
Positive |
||
Clarity of solution |
Clear |
Clear |
||
Colour of solution |
≤BY7 |
<BY7 |
||
Melting point |
About 190℃ |
190℃ |
||
Assay |
99.0~100.5% |
99.6% |
||
Acidity (PH) |
2.1~2.6 (5% aqueous solution) |
2.40 |
||
Sulphated Ash |
≤0.1% |
0.01% |
||
Specific Rotation |
+20.5°~+21.5° |
+21.07° |
||
Heavy Metals |
≤10ppm |
<3ppm |
||
Oxalic Acid |
≤0.2% |
<0.2% |
||
Copper |
≤5ppm |
<5ppm |
||
Iron |
≤2ppm |
<2ppm |
||
Related substances |
Impurity C≤0.15% |
Not Detected |
||
|
Impurity D≤0.15% |
0.01% |
||
|
Unspecified impurities≤0.10% |
Less than disregard limit |
||
|
Total impurities other than C、D≤0.2% |
Less than disregard limit |
||
Residual solvents |
Ethanol≤0.5% |
Not Detected |
||
|
Methanol≤0.3% |
0.0070% |
||
Particle –Size |
≤30% more than 40mesh |
More than 40mesh:11% |
||
|
≥45%between 40 and 80mesh |
Between 40 and 80mesh:57% |
||
Arsenic |
≤3ppm |
<3ppm |
||
Lead |
≤2ppm |
<2ppm |
||
Mercury |
≤1ppm |
<1ppm |
||
Acidity (PH) |
2.4~2.8 (2% aqueous solution) |
2.56 |
||
Loss on drying |
≤0.40% |
0.04% |
||
Conclusion |
The results conforms with EP8/E300/USP37/FCCVIII standards |