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Origin: China
Cas No: 7440-59-7
Specification: 99%min
Min order Quantity: 1 /kg
Supply Ability: 80 mt/month
Lead time: 7 days for OEM, 3 days for ready goods
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Property
Basic Info
Chemical Name | helium atom |
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Synonyms | HELIUM; |
CAS No. | 7440-59-7 |
Molecular Formula | He |
Molecular Weight | 4.00260 |
PSA | 0.00000 |
LogP | 0.00000 |
Properties
Appearance & Physical State | COLOURLESS, ODOURLESS, REFRIGERATED, LIQUEFIED GAS |
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Density | 0.1785(0ºC) |
Boiling Point | -268.934ºC(lit.) |
Melting Point | -272.2ºC(lit.) |
Flash Point | none |
Stability | Stable; extremely unreactive. |
Safety Info
RTECS | MH6520000 |
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Hazard Class | 2.2 |
HS Code | 2804290000 |
WGK Germany | 3 |
RIDADR | UN 1046 |
Risk Statements | R9 |
Symbol | GHS04 |
Hazard Declaration | H280 |
Caution Statement | P410 + P403 |
Signal Word | Warning |