leonardite humic acid

详情

Our Company offers leonardite for fertilizer .
Characteristics of leonardite as follows:
 
Indicator
 
Value
 
Moisture (operation ),%%
*0,*0 **5,*0
 
Ash,%
 
*2,*0
 
Acidity ,PH
 
6,*0
 
Bitumens ( crude montan wax ), (minimum ),%
*5,*0
 
Humic acid, %
*5,****0,*0
 
 
 
 
Elemental composition of leonardite:
 
N, %
C, %
S, %
H, %
O, %
0,*1
*1,*3
3,*4
5,*6
*9,*6
 
Heavy metals in leonardite ash:
 
we found that zinc content in leonardite ash was *6.6 μg/g; manganese *3.1 μg/g; copper *7.6 μg/g; nickel *6.9 μg/g; cadmium 0.*2 μg/g; lead *7.7 μg/g. There are also trace amounts of mercury and arsenic. Among the elements tested, iron has exceptional place, with content of 3.*2 mg/g of ash. These values point to low heavy metal contents in the coals under testing; the most dangerous of them (mercury and arsenic) were found only as traces.
• Scope of delivery - from 3 **0 to *0 **0 tons per month
• Payment - an irrevocable letter of credit for each shipment open in the seller's bank. Disclosure of the letter of credit - if the conditions FOB