Prix FOB
Obtenir le dernier prix0.2 ~ 0.3 / Liter ( Negotiable )
|1 Liter Minimum Order
Pays:
China
N ° de modèle:
Kr
Prix FOB:
0.2 ~ 0.3 / Liter ( Negotiable ) Obtenir le dernier prix
Localité:
China
Prix de commande minimale:
0.2 per Liter
Commande minimale:
1 Liter
Packaging Detail:
Gas cylinders:2L, 4L, 10L, 40L, 50L, ISO Tank, Tube trailer
Heure de livraison:
15-20 days after PO and deposit confirmed
Capacité de Fournir:
1000 Unit per Month
Payment Type:
L/C, T/T
Groupe de produits :
-
China
Personne àcontacter Mr. Terry
No. 12th, Qiaotou Zaoxia Road, Fuyong Street, Baoan district, Guangdong Province, Shenzhen, Guangdong
Description:
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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.
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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.
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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.
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Specifications:
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| Component | Specification | Concentration |
| KRYPTON | *9.**9% | >*9.**9% |
| 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 |
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Physical properites
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| Physical properties | |
| Chemical name | kr |
| Molecular weight | *3.*0 |
| Density of the gas at *0°F (*1,1°C), 1 atm | 0.***2 lb/ft3, 3.**9 kg/m3 |
| Specific gravity of the gas at *0°F (*1 ,1°C), 1 atm | 2.**9 |
| Specific volume of the gas at *0ºF (*1,1°C), 1 atm | 4.**4 ft3/lb, 0.**7 m3/kg |
| Boiling point at 1 atm | ***4.0ºF, ***3.4ºC |
| Melting point at 1 atm | ***1º F, ***7ºC |
| Critical temperature at 1 atm | **2.8ºF, **3.8ºC |
| Critical density | *6.7 lb/ft3, **8 kg/m3 |
| Critical pressure | **8.0 psia, *5.*2 bar |
| Triple point | ***1.3ºF, ***7.4ºC |
| Latent heat of vaporization at normal boiling point | *6.2 Btu/lb, **7.5 kJ/kg |
| Latent heat of fusion at triple point | 8.*1 Btu/lb, *9.*7 kJ/kg |
|
Specific heat of the gas at *0ºF (*1,1°C), 1 atm Cp Cv |
0.**0 Btu/(lb) (ºF) 0.**1 kJ/(kg) (ºC) 0.**5 Btu/(lb) (ºF) 0.**6 kJ/(kg) (ºC) |
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Applications:
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1. Krypton is used in some photographic flashes for high speed photograph.
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2. Krypton gas is also combined with other gases to make luminous signs that glow with a bright
  greenish-yellow light.
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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.
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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 conventionalÂ
  incandescent lamps.
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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).
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6. Krypton**3 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.
| Pays: | China |
| N ° de modèle: | Kr |
| Prix FOB: | 0.2 ~ 0.3 / Liter ( Negotiable ) Obtenir le dernier prix |
| Localité: | China |
| Prix de commande minimale: | 0.2 per Liter |
| Commande minimale: | 1 Liter |
| Packaging Detail: | Gas cylinders:2L, 4L, 10L, 40L, 50L, ISO Tank, Tube trailer |
| Heure de livraison: | 15-20 days after PO and deposit confirmed |
| Capacité de Fournir: | 1000 Unit per Month |
| Payment Type: | L/C, T/T |
| Groupe de produits : | - |
