Item	Specifications	Results
Appearance	White crystalline powder	White crystalline powder
Assay	≥99.0%	99.4%
Melting point	124-130ºC	127ºC
Water	≤0.5%	0.1%
Ash	≤0.01%	<0.01%
Heavy metal	≤10ppm	<10ppm
Arsenic (AS2O2)	≤1ppm	<1ppm
Cadmium	≤1ppm	<1ppm
Lead	≤1ppm	<1ppm
Mercury	≤0.1ppm	Not detected
Loss on drying	≤0.5%	0.2%
Total bacterial count	≤10 Cfu/g	Not detected
Yeast and mold	≤10 Cfu/g	Not detected
Escherichia coli	Not detected	Not detected
Salmonella	Not detected	Not detected
Mesh	60mesh
Conclusion	The results conforms with USP standards

 

 

Q1. Can I have a sample order for your products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. We provide free samples, but the freight will be borne by you, and the cost will be returned to you or deducted from your order later.
Q2. What about the lead time?
A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than
Q3. Do you have any MOQ limit for order?
A: Low MOQ, 10-100g for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How about the packing?
A: Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.
Q6: how do you control quality?
A: We will make samples before mass production and start mass production after sample approval. 100% inspection during production and random inspection before packaging.
Q7: how to contact us?
A: Click Alibaba "contact supplier" and send us the product information you are interested in. You will get a reply within 24 hours.
Q8: which payment method do you accept?
A: For small orders, you can pay by wire transfer, Western Union, Moneygram transfer, Bank Tansfer, Bitcoin or Alibaba.
Q9: can you give me a discount?
A: Of course, it depends on your quantity.