| CAS No.: | 149-91-7 |
|---|---|
| Formula: | C7h6o5 |
| Appearance: | Powder |
|
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|
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|
Items |
Standards |
Results |
|
Appearance |
White Powder |
Complies |
| Gallic acid(Dry Base) |
≥99% |
99.68% |
|
Loss on drying |
≤10% |
8.32% |
|
Water dissolved experiment |
Not cloudy |
Complies |
|
Tannic acid test |
Not cloudy |
Complies |
|
Chroma(Platinium-cobalt color number) |
≤180 |
<120 |
|
Sulfate |
≤0.02% |
0.001% |
|
Residue on ignition |
<0.1% |
<0.02% |
|
Turbidity(NIU) |
<10 |
Complies |
Q1: Are you a manufacturer?
Answer: Yes, we are factory founded on 2010.
Q2: How to contact with us?
Click the "Contact Supplier" And then send us message the product you interest in, you will get valid reply within TWO hours.
Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account
Q4:Can you give me a discount price?
Sure,It depends on your qty.
Q5: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.
Q6: 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.
Q7: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.
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