






Name of index | BP2010 | E -332(ii) | usp-30 | |
Description | White, hygroscopic, granular powder or transparent crystals | |||
Identification | Pass test | Pass test | Pass test | |
Assay( anhydrous basis) | % | 99.0 -101.0 | ≥99.0 | 99.0-100.5 |
Solubility | Very soluble in water, practically insoluble in ethanol(96 per cent) | -- | -- | |
Appearance of solution | Solution is clear and colorless | -- | -- | |
Acidity and Alkalinity | Pass test | -- | Pass test | |
Chloride | ≤ppm | 50 | -- | -- |
Heavy metals(as Pb) | ≤ppm | 10 | -- | 10 |
Oxalates | ≤% | 0.03 | 0.01 | -- |
Sulphates | ≤% | 0.015 | -- | -- |
Tartrate | -- | -- | Pass test | |
Pyrogens | Pass test | -- | -- | |
Readily carbonisable substances | Pass test | -- | -- | |
Loss on drying, | 11.0-13.0 | 10.0-13.0(180 °C, 18h) | 10.0-13.0(180 °C, 18h) | |
pH(5% aqueous solution) | -- | 7.5-9.0 | -- | |
Arsenic(As) | ≤ppm | -- | 1 | -- |
Lead(Pb) | ≤ppm | -- | 2 | -- |
Mercury(Hg) | ≤ppm | -- | 1 | -- |
Q1. Who are we?
We are based in Qingdao, China, start from 2008,sell to South Asia(10.00%),Central America(10.00%),Western Europe(10.00%),Eastern Asia(10.00%),Mid East(10.00%),Oceania(10.00%),Africa(10.00%),Southeast Asia(10.00%),Eastern Europe(10.00%),South America(10.00%).
Q2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q3:Can you give me a discount price?
Surely,It depend on your qty.
Q4:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q5: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q6:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss. and Shipping