QINGDAO BAIGONG INDUSTRIAL AND TRADING CO., LTD

Home > Products > Gas Products > > 99.999% High Purity Krypton Gas, Kr gas
Product name : 99.999% High Purity Krypton Gas, Kr gas
 Enlarge Image                   Back
←[Previous Product]              [Next Product]→


Details:
Krypton, like the other noble gases, is used in lighting and photography. Krypton light has many spectral lines, and krypton plasma is useful in bright, high-powered gas lasers, each of which resonates and amplifies a single spectral line. Krypton fluoride also makes a useful laser.
 
Earth has retained all of the noble gases that were present at its formation except helium. Krypton's concentration in the atmosphere is about 1 ppm. It can be extracted from liquid air by fractional distillation. The amount of krypton in space is uncertain, because measurement is derived from meteoric activity and solar winds. The first measurements suggest an abundance of krypton in space.
 
Krypton's multiple emission lines make ionized krypton gas discharges appear whitish, which in turn makes krypton-based bulbs useful in photography as a brilliant white light source. Krypton is used in some photographic flashes for high speed photography. Krypton gas is also combined with other gases to make luminous signs that glow with a bright greenish-yellow light.

Specifications;

Component

Specification

Concentration

KRYPTON

99.999%

>99.999%

HYDROGEN(H2)

≤0.5 ppm

≤0.5 ppm

OXYGEN+AIR (O2+Ar)

≤1.5 ppm

≤1.5 ppm

NITROGEN (N2)

≤2.0ppm

≤2.0 ppm

CARBON MONOXIDE (CO)

≤0.3ppm

≤0.3ppm

CARBON DIOXIDE(CO2)

≤0.4ppm

≤0.4 ppm

CH4

≤0.3 ppm

≤0.3 ppm

XENON(Xe)

≤2.0 ppm

≤2.0 ppm

MOISTURE (H2O)

≤2.0 ppm

≤2.0 ppm

TETRAFLUOROMETHANE (CF4)

≤1.0 ppm

≤1.0 ppm


Physical properties:

Physical properties

Chemical name

kr

Molecular weight

83.80

Density of the gas at 70°F (21,1°C), 1 atm

0.2172 lb/ft3, 3.479 kg/m3

Specific gravity of the gas at 70°F (21 ,1°C), 1 atm

2.899

Specific volume of the gas at 70ºF (21,1°C), 1 atm

4.604 ft3/lb, 0.287 m3/kg

Boiling point at 1 atm

-244.0ºF, -153.4ºC

Melting point at 1 atm

-251º F, -157ºC

Critical temperature at 1 atm

-82.8ºF, -63.8ºC

Critical density

56.7 lb/ft3, 908 kg/m3

Critical pressure

798.0 psia, 55.02 bar

Triple point

-251.3ºF, -157.4ºC

Latent heat of vaporization at normal boiling point

46.2 Btu/lb, 107.5 kJ/kg

Latent heat of fusion at triple point

8.41 Btu/lb, 19.57 kJ/kg

Specific heat of the gas at 70ºF (21,1°C), 1 atm Cp

Cv

0.060 Btu/(lb) (ºF) 0.251 kJ/(kg) (ºC)

0.035 Btu/(lb) (ºF) 0.146 kJ/(kg) (ºC)


Applications:
 
1. Krypton is used in some photographic flashes for high speed photograph.
 
2. Krypton gas is also combined with other gases to make luminous signs that glow with a bright greenish-yellow light.
 
3. Krypton is mixed with argon in energy efficient fluorescent lamps, reducing the power consumption, but also reducing the light output and raising the cost.
 
4. Krypton (along with xenon) is also used to fill incandescent lamps to reduce filament evaporation and allow higher operating temperatures. A brighter light results with more blue color than conventional incandescent lamps.
 
5. Krypton's white discharge is often used to good effect in colored gas discharge tubes, which are simply painted or stained to create the desired color (for example, "neon" type multi-colored advertising signs are often entirely krypton-based).
 
6. Krypton-83 has application in magnetic resonance imaging (MRI) for imaging airways. In particular, it enables the radiologist to distinguish between hydrophobic and hydrophilic surfaces containing an airway.

Related Products :
Sulfur hexafluoride gas SF6 gas

Sulfur hexafluoride gas SF6 gas
Sulfur Dioxide SO2

Sulfur Dioxide SO2
High Purity Gases

High Purity Gases
Nitrogen Gas

Nitrogen Gas
Industrial Gases

Industrial Gases
20kg 99.9% nitrous oxide N2O laughing gas in Club for Vietnam

20kg 99.9% nitrous oxide N2O laughing gas in Club for Vietnam
99.9% - 99.99% Carbon monoxide Gas CO gas

99.9% - 99.99% Carbon monoxide Gas CO gas
High Purity 99.999% Helium Gas He

High Purity 99.999% Helium Gas He

online service

Skype: lisa_qingdao Skype: baigongcn Skype: cnbaigong Skype: cngascylinder 点击这里给我发消息 点击这里给我发消息 点击这里给我发消息 点击这里给我发消息