| Industrial
Ammonium Fluoride
Other
Name: Neutral Ammonium Fluoride
M.F.:
NH4F
M.W.:
37.04
Properties:
white crystal or powder; deliquescent; corrosive to glass; soluble
in cold water; slightly soluble in alcohol; insoluble in ammonia;
dissociate to produce ammonia and ammonium hydrogen fluoride in
hot water; acidic aqueous solution; corrosive to skin; toxic; specific
density: 1.009(d20 )
Application:
etching on glass; antiseptic for timber; also for extraction or
rare elements.
Product
Quality:
Purity
%: 95
Storage:
tight sealed, double bagged with plastic bag in knitted bag.
Hazard:
toxic inorganic compound; hazard No. 83015
Industrial
Fluoboric Acid
M.F.:
HBF4
M.W.:
87.81
Properties:
clear solution; strongly acidic; hydrolyzable; not corrosive to
glass under room temp.; concentrated solution should not be stored
in glass vessel for prolonged time; toxic; corrosive.
Applications:
stabilizer for diazotates; for the production of fluoborates; in
electroplating and printed circuit board industry; polishing agent
for aluminum; acid wash for steel plates; welding fuse; cleaning
agent for metallic deposit; for casting of aluminum alloy or zinc;
catalyst for organic synthesis;
Product
Quality:
| Item
|
Value
(%) |
| grade
A |
grade
B |
purity
(HBF4)
|
40 |
40 |
| free
boric acid (H3BO3) |
0.1
 0.6 |
0.1
0.6 |
sulfate
(SO4) |
0.5 |
- |
silicon
dioxide (SiO2) |
1.0 |
- |
iron
(Fe) |
0.05 |
- |
heavy
metal (in Pb) |
0.1 |
- |
chloride
(Cl) |
0.01 |
- |
Storage:
in cool, dry and well ventilated depot.
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