Industrial Ammonium Fluoride
[Molecular Formula] NH4F
[Molecular Weight] 37.04
[Properties]
white needle-like crystal, easy deliquescence and agglomeration, soluble in water and slight soluble in alcohol; decompose to ammonia and ammonium bifluoride in heat water, decompose to ammonia and hydrogen fluoride when being heated, its aqueous solution is acidic and can corrode glass.
[Uses]
It is used as etching agent for glass, antiseptic agent and disinfectant for wood and wine, analytic reagent and mordant of fibre, solvent in extracting rare element.
[Quality Index] Enterprise Standard(ES)
Item |
Excellent Grade |
First GradeÆ· |
Second GradeÆ· |
NH4F, %≥ |
98 |
96 |
95 |
Sulfate(SO4), %≤ |
0.1 |
0.18 |
0.2 |
Fluorosilicate(SiF6), %≤ |
2.0 |
2.5 |
3 |
Ignition Residue %, ≤ |
0.15 |
0.2 |
0.25 |
[Package] plastic woven bag lined with high-pressure polyethylene plastic bag, net weight: 25kg/bag. |
