What is Xenon?

Xenon is an element with a larger atomic number (ie, a heavier element) in an inert gas, and the xenon atom has a larger radius. The atomic number is 54, the peripheral electron arrangement is 5s2, 5p6, and it is located in the fifth cycle of Group 18 (IUPAC new regulations, which is the original Group 0), the atomic covalent radius is 209 picometers, and the first ionization energy is 1172kJ / mol. Elemental matter consists of monoatomic molecules. Rare gas, colorless, odorless, odorless, density 5.887 kg / m3, melting point -111.9 ° C, boiling point -107.1 ± 3 ° C, it can dissolve 110.9 ml (volume) per liter of water at 20 ° C. Can absorb X-rays.

Xenon

Xenon is

Chemical symbol: Xe

Density: 5.89Kg / m3 (under standard conditions)

Colorless and tasteless

Xenon is chemically inert. Can talk to water, hydroquinone,

Health hazard

Invasion route: inhalation.

Health hazards: The harm to people is similar to argon. Humans inhale oxygen mixed with 70% xenon gas, causing mild anesthesia, and loss of consciousness after about 3 minutes.

Toxicological information and environmental behavior

Dangerous characteristics: In case of high heat, the internal pressure of the container increases, and there is a danger of cracking and explosion.

On-site emergency monitoring method

Portable instrument method

Laboratory monitoring methods

Gas chromatography with reference to "

• Chinese name

• Xenon

• CAS NO.

• 7440-63-3

• Chinese alias

• Xenon, liquid xenon

• English name

• Xenon

• English alias

• XENON; Xe; Xeneisol 133A; Xenomatic; Xenon atom; XENON, PRESSURE TIN WITH 1 L; XENON 99.999%; Xenon, 99.995%, disposablecylinder, w / CGA-580valve; Xenon, refrigerated liquid (cryogenic liquid) .; xenon, refrigerated liquid; Xenon (133Xe) Injection

• EINECS

• 231-172-7

• Molecular formula

• XE

• Molecular weight

• 131.293

• Molecular structure diagram

• Dangerous Goods Sign

• T Toxic

  Poisonous

• Safety term

• S9 Keep container in a well-ventilated place.
  Keep container in a well-ventilated place.

  S38 In case of insufficient ventilation, wear suitable respiratory equipment.
  In case of poor ventilation, wear appropriate respirator.

• Risk term

Physical and Chemical Properties of Xenon

A colorless gas that cannot burn or assist combustion. Can absorb X-rays. The relative density of gas is 5.887 ± 0.009, the relative density of liquid is 3.52 (100 ), and the relative density of solid is 2.7 (-140 ). The critical temperature is 16.6 ° C, the critical pressure is 58.2 × 100 Pa, and the critical density is 1.155. It is a natural rare gas with the largest relative atomic mass and the highest density.

Product Usage

Applications of Xenon

One: It is widely used in electronics and electric light source industries. Compared with an argon-filled bulb of the same power, a bulb filled with xenon gas has the advantages of high luminous rate, small size, long life, power saving and the like.

Two: Due to its extremely strong ability to penetrate fog, it is often used as fog navigation lights, and is widely used in airports, stations and terminals. The xenon lamp can generate a high temperature of 2500 ° C after being condensed, and can be used for welding or cutting refractory metals such as titanium and molybdenum.

Three: In medicine, xenon is a deep anesthetic with no side effects, a contrast agent for X-ray photography.

Xenon production method

The air separation method extracts the krypton and xenon mixed gas from the air separation device, extracts the lean krypton, removes the hydrocarbons, carbon dioxide, separates, and refines through distillation to obtain 99.99% pure xenon.
Xenon is extracted from the synthetic ammonia tail gas. In the process of extracting argon from the tail gas, the krypton and xenon contained in the liquid methane of the methane tower can be 95% xenon after rectification, washing, oxygen removal, adsorption and desorption.

Xenon Chemical Safety Data Sheet (MSDS)

Xenon toxicity and danger

Category: harmful gases

Toxicity classification: low toxicity

Acute toxicity: Inhalation-mouse TCL0 67000 ppm

Hazardous characteristics of explosives: high temperature explosion of steel cylinders

Flammability hazard characteristics: non-combustible; can be suffocating

Extinguishing media: water, carbon dioxide, dry powder, foam

Xenon storage and transportation characteristics

The warehouse is ventilated and dry at low temperature; ^[3]