China (Mainland)
Assessedsupplier 
Helium CAS NO.7440-59-7
- Min.Order: 1 Kilogram
- Payment Terms: L/C,T/T,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 |
| F | 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. |