FOB Price
Obtenir le dernier prix3 ~ 4 / Kilogram ( Negotiable )
|Minimum Order
Localité:
china
Prix de commande minimale:
Commande minimale:
500 Kilogram
Packaging Detail:
in 25kg carton
Delivery Time:
immediately
Supplying Ability:
5000 Metric Ton per Year
Payment Type:
T/T, L/C, D/A, D/P, Western Union, Money Gram, PayPal, Other
Personne àcontacter Ms. Lisa
the 4th street, Tianjin, tianjin
| Â Â Product Name:Ascorbic Acid | Testing Date: JAN. 8th, ***3 | ||
| Specification | Standard | Result | Â |
| Â Â Â Â Â Â Â Â Appearance | White or Almost
White Crystalline Powder |
pass | Â |
| Identification | Positive Reaction | Positive | Â |
| Melting Point | About **0°C | **1°C |  |
| pH(With 2% Water Solution) | 2.4~2.8 | 2.6 | Â |
| pH(With 5% Water Solution) | 2.1~2.6 | 2.3 | Â |
| Clarity of Solution | Clear | Clear | Â |
| Colour of Solution | ≤ BY7 | 1ppm |  |
| Arsenic | ≤ 3ppm | < 3ppm |  |
| Mercury | ≤ 0.1ppm | < 0.1ppm |  |
| Zinc | ≤ *5ppm | < *5ppm |  |
| Oxalic Acid | ≤ 0.2% | < 0.2% |  |
| Sulphate Ash(Residue on Ignition) | ≤ 0.1% | 0.*3% |  |
| Specific Optical Rotation | **0.5° ~ **1.5° | **1.1° |  |
| Assay | *9.0% ~ **0.5% | *9.9% | Â |
| Loss on Drying | ≤ 0.4% | 0.*3% |  |
| Residual Solvents | Methanol:NMT ***0 ppm | < **0ppm | Â |
| Related Substances | Impurity C ≤ 0.*5% | Complies |  |
|  | Impurity D ≤ 0.*5% | ||
