Specification
|
Item
|
industry standard
|
Enterprise internal control index.
|
actual target
|
|
Appearance
|
White Crystals
|
||
|
Main contents (as NH4H2PO4) w/%≥
|
98.5
|
99
|
99.74
|
|
Phosphorus pent oxide (AS P2O5) w/%≥
|
60.8
|
61
|
61.51
|
|
Nitrogen (as N) w/%≥
|
11.80
|
11.9
|
12.09
|
|
Arsenic (As) w/%≤
|
0.005
|
0.0003
|
0.0001
|
|
Fluoride (as F)w/%≤
|
0.02
|
0.005
|
0.0009
|
|
sulphate (as SO4) w/%≤
|
0.9
|
0.005
|
0.001
|
|
Moisture w/%≤
|
0.50
|
0.1
|
0.07
|
|
Water Insoluble w/%≤
|
0.10
|
0.1
|
0.005
|
|
PH (1% solution)
|
4.2~4.8
|
4.2~4.8
|
4.41
|
Quotation