[Molecular Formula]: HF
[Molecular Weight]:20.01
[Property]: white
or pale gray powder;slightly soluble in water;hydrogen
fluoride released in the reaction to water
at 730°C above;dissolved slowly in strong
acid to release Hydrogen Fluoride
[Melting point]:19.5°C
[Specification]:In accordance with GB7746-1997
| Items |
Indexes |
| superior |
I-grade |
qualified |
| Hydrogen
fluoride, %min. |
99.95 |
99.90 |
99.70 |
| Water, %max. |
0.03 |
0.06 |
0.10 |
| Fluorosilic acid, %max. |
0.010 |
0.020 |
0.050 |
| Sulphur dioxide,max. |
0.007 |
0.015 |
0.030 |
| Non-volatile acid(as
H2SO4), %max. |
0.005 |
0.020 |
0.050 |
[Fine
products specification]:Q/DHG 0922002
Items
|
fine 1-grade |
fine2-grade |
fine3-grade |
HF,%(m/m) |
99.99 |
99.99 |
99.98 |
H2O,%(m/m) |
0.001 |
0.0030 |
0.01 |
(H2SIF6),%(m/m) |
0.0025 |
0.0050 |
0.005 |
SO2,%(m/m) |
0.0005 |
0.0010 |
0.002 |
H2SO4,%(m/m) |
0.0005 |
0.0010 |
0.003 |
As,%(m/m) |
0.0001 |
0.0003 |
0.0005 |
[Used]: Used
in manufacturing fluorine, fluorinated salts, fluoric
complex acid, fluo-refrigerant, fluoroalkane extinguishant
and fluoric intermedium, and also greatly used
as a fluorinating agent and an etchant in pharmaceutical,
chemical and electronic industry.
[Packing]: 40, 340, 680, 820kg per drum, and
also shipped by ISO containers or tanks. Its
category of dangerous goods is 8, and its packing
category is I.
[Security]:
While handling hydrogen fluoride,
workers should put on the protecting clothes,
gloves and goggles. Hydrogen fluoride can quickly
pervade into and harm deeply the skin. Great
inhalation or cauterization will result in
endangering the body. If this accident happens,
first aid ought to be taken immediately. |
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