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Home > Products >  Helium

Helium CAS NO.7440-59-7

  • Min.Order: 1 Kilogram
  • Payment Terms: L/C,T/T,Western Union,MoneyGram,Other
  • Product Details

Keywords

  • Helium price
  • Helium CAS 7440-59-7
  • Helium supplier in China

Quick Details

  • ProName: Helium
  • CasNo: 7440-59-7
  • Molecular Formula: He
  • Appearance: colourless gas
  • Application: Used to fill the balloon, thermometer,...
  • DeliveryTime: Within 2-3 working days
  • PackAge: 25kg/drum, 50kg/drum as per your reque...
  • Port: Shanghai, Ningbo, Tianjin, etc
  • ProductionCapacity: 1 Metric Ton/Month
  • Purity: 99%
  • Storage: Stored in cool, dry and ventilation pl...
  • Transportation: by courier door to door or by sea
  • LimitNum: 1 Kilogram

Superiority

superior quality, moderate price & quick delivery.

Details

 

helium chemical properties
mp  -272.2 °c(lit.)
bp  -268.934 °c(lit.)
density  0.1785(0℃)
vapor density  0.14 (vs air)
merck  13,4645
stability: stable; extremely unreactive.
cas database reference 7440-59-7(cas database reference)
 
safety information
safety statements  9
ridadr  un 1046 2.2
wgk germany  3
rtecs  mh6520000
4.5-31
hazardclass  2.2
msds information
provider language
sigmaaldrich english
 
helium usage and synthesis
chemical properties colourless gas
general description a colorless, odorless, noncombustible gas. can asphyxiate. inhalation causes the voice to become squeaky (mickey mouse voice). exposure of the container to prolonged heat or fire can cause helium to rupture violently and rocket. if liquefied, contact of the very cold liquid with water causes violent boiling. pressures may build to dangerous levels if the liquid contacts water in a closed container. used in arc welding, to trace leaks in refrigeration and other closed systems and as a lifting gas for lighter-than-air aircraft.
reactivity profile chemically inert. these substances undergo no chemical reactions under any known circumstances. they are nonflammable, noncombustible and nontoxic. they can asphyxiate.
health hazard vapors may cause dizziness or asphyxiation without warning. vapors from liquefied gas are initially heavier than air and spread along ground.
fire hazard non-flammable gases. containers may explode when heated. ruptured cylinders may rocket.
 
helium preparation products and raw materials
preparation products neon
raw materials ammonia

 

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