Item | Standard | |||||
Standard | GB/T15963-2008 | |||||
Appearance | White powder | White needle | ||||
Active ingredient (%, ≥) | 92 | 93 | 95 | 92 | 93 | 95 |
Petroleumether soluble substances (%, ≤) | 1.5 | 1.5 | 1.2 | 1.5 | 1.5 | 1.5 |
Inorganic salts (NaCl+Na2SO4) (%, ≤) | 5.5 | 4.5 | 2.5 | 4.5 | 3.5 | 2.0 |
Water (%, ≤) | 2.5 | 2.5 | 2.0 | 3.5 | 3.5 | 3.0 |
pH (1% aq. solution) | 7.5-9.5 | 7.5-9.5 | 8.0-9.5 | 7.5-9.5 | 7.5-9.5 | 7.5-9.5 |
Whiteness (WG, ≥) | 90 | 90 | 90 | 90 | 90 | 90 |
1.When will I get reply?
We ensure you fast response,fast service.Emailes will be replied in 12 hours,your questions will be answered in time.
2.How about the validity of the products products?
According to the products you ordered.
3.How about the packing?
Usually we provide the packing as 25kg/bag or carton.Of course,if you have special requirements on them,we will according to you .
4.How about the storage and transport?
It should be stored in a dry and ventilating warehouse.Be cautious to keep away from moisture and heat;unloaded with care,so as to avoid the damage.Furthermore,it should be stored separately from poisonous substances.
5.Which payment terms do you accepted?
L/C,T/T,D/P,D/A,Western Union Paybal and so on.
6.Could you provide free sample for us?
Yes,we can send the free sample to you less 200grams,but you need to pay for the freight charge,when you begin to order,we will return the freight charge back to you.