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Lighting Photography Rare Noble Gas Krypton Gas Kr Electronic Grade

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Wuhan Newradar Special Gas Co.,Ltd
City: Wuhan
Province/State: Hubei
Country/Region: China
Contact Person:Ms Vicky Liu

Lighting Photography Rare Noble Gas Krypton Gas Kr Electronic Grade

Brand Name : newradar
Model Number : N/A
Certification : ISO/DOT/GB
Place of Origin : china
MOQ : 1cubic meter
Price : negotiable
Payment Terms : T/T, L/C, Western Union
Supply Ability : 4000 cubic meter per month
Delivery Time : 10 working days after received your payment
Packaging Details : 8L , 10L , 44L , 50L
Product name : Krypton
Purity : 99.999%
Atomic No. : 36
Cylinder size : 8L,10L,44L,49L
CAS No. : 7439-90-9
Melting point : 115.78 K ​(−157.37 °C, ​−251.27 °F)
Boiling point : 119.93 K ​(−153.415 °C, ​−244.147 °F)
Un Number : 1056
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Lighting Photography Rare Noble Gas Krypton Gas Kr Electronic Grade


Description:


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:


ComponentSpecificationConcentration
KRYPTON99.999%>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 properites


Physical properties
Chemical namekr
Molecular weight83.80
Density of the gas at 70°F (21,1°C), 1 atm0.2172 lb/ft3, 3.479 kg/m3
Specific gravity of the gas at 70°F (21 ,1°C), 1 atm2.899
Specific volume of the gas at 70ºF (21,1°C), 1 atm4.604 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 density56.7 lb/ft3, 908 kg/m3
Critical pressure798.0 psia, 55.02 bar
Triple point-251.3ºF, -157.4ºC
Latent heat of vaporization at normal boiling point46.2 Btu/lb, 107.5 kJ/kg
Latent heat of fusion at triple point8.41 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.



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