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| Krypton, Kr » |
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| KRYPTON Gas Purity 99,999% |
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Name:
Symbol:
Atomic number:
Molecular weight:
Group number:
Group name:
Period number:
CAS Registry ID:
UN number (liquid):
UN number (gas): |
Krypton
Kr
36
83.8 g/mol
18
Rare gas
4
7439-90-9
UN1970
UN1056 |
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Krypton is used in the fanciest, most energy-efficient
double-pane insulated windows. Krypton is also used in certain
fluorescent lamps and in a flash lamp employed in high-speed photography.
Radioactive krypton-85 is useful for detecting leaks in sealed
containers, with the escaping atoms detected by means of their
radiation.
Typical Level of Impurities
| Hydrogen |
H2 |
ppm |
1,0 |
| Nitrogen |
N2 |
ppm |
2,0 |
| Oxygen |
O2 |
ppm |
0,5 |
| Argon |
Ar |
ppm |
1,0 |
| Xenon |
Xe |
ppm |
1,0 |
| Carbon oxide |
CO |
ppm |
0,5 |
| Carbon dioxide |
CO2 |
ppm |
0,5 |
| Moisture |
H20 |
ppm |
1,0 |
| Hydrocarbons |
CnHm |
ppm |
0,5 |
| Sulfur hexafluoride |
SF6 |
ppm |
0,5 |
| Halocarbon 14 |
CF4 |
ppm |
0,5 |
| Halocarbon 116 |
C2F6 |
ppm |
0,5 |
Physical constants
| Chemical Formula |
Kr |
| Molecular weight |
83,8 |
| Denseness of gas at + 20°C |
3,494 kg/m3 |
| Denseness of gas at + 0°C |
3,7493 kg/m3 |
| Temperature of boiling |
-153,22°C (119.78°K) |
| Denseness of a liquid |
2410 kg/m3 |
| Latent heat of vaporization |
9095 Joule/mole |
| Temperature and pressure a triple point |
-157,23°C (115.77°K) |
| Volume of gas for want of evaporation 1l of a liquid (0°C)
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643 litreses |
| Bottlenecks: |
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| Temperature |
-63,61°C (209.39°K) |
| Pressure |
54,25 technical atmosphere |
| Denseness |
911,5 Kg/m3 |
Information about cylinders
| Type of cylinder |
Bulk, ltr. |
Type of a valves |
Net weight, kg |
Amount of a Krypton, ltr. |
| B2 |
2 |
DIN 477/6 |
0,7 |
200 |
| B5 |
5 |
DIN 477/6 |
3,49 |
1.000 |
| B10 |
10 |
DIN 477/6 |
6,99 |
2.000 |
| B50 |
50 |
DIN 477/6 |
34,94 |
10.000 |
Transport data
| Chemical Symbol |
Kr |
| CAS Registry ID |
7439-90-9 |
| DOT Classification |
Non-inflammable gas |
| DOT Label |
Non-inflammable gas |
| Hazard class |
2.2 |
| UN Number (oblate gas) |
UN 1056 |
| Main Dangers High |
Pressure and asthma |
| Toxility (TLV) |
Non-toxic gas (asthma) |
| Range of Flammability (in an air) |
Non-inflammable gas |
| Odor |
Without an odor |
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| Xenon,
Xe » |
| Neon,
Ne » |
| Helium,
He » |
| Argon,
Ar » |
| Laser Gas, XeNe » |
| Laser Gas, KrNe » |
| Laser Gas, ArXeNe » |
| Laser Gas, NeH2 » |
Excimer Laser Gases
XeCl, XeF, ArF, KrF » |
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