Helium

• Customization: Available
• CAS No.: 7440---------59-----------7
• Formula: He
• EINECS: 231-168-5
• Purity: ≥99%
• Grade Standard: Industrial Grade
• Melting Point: -272.2 °c(Lit.)
• Boiling Point: -268.934 °c(Lit.)
• Density: 0.1785 (0ºC)
• Vapor Density: 0.14 (Vs Air)
• Transport Package: Filling
• Specification: 25KG
• Origin: China
• HS Code: 2804290090
• Production Capacity: 5000m3

Product Description

Detailed Photos

 

Product Description

 

nature

Melting point -272.2 °C(lit.)

Boiling point -268.934 °C(lit.)

Density 0.1785 (0ºC)

Vapor density 0.14 (vs air)

Solubility slightly soluble in H2O; Insoluble in ethanol

Form gas

colorless

The Odor is tasteless

Water solubility 8.61mL/1000gH2O(101.32kPa,0°C)[KIR78]; Henry'slawconstants,k×10? For. 856 (104 ° C), 6.739 (149.4 ° C), 2.524 (250.6 ° C) and 1.796 (275.1 ° C) [POT78]

Merck13, 4645

Dielectricconstant1.0 (-269ºC)

Stable and stable; Very unlikely to react. LogP0.280



 

nature

Melting point -272.2 °C(lit.)

Boiling point -268.934 °C(lit.)

Density 0.1785 (0ºC)

Vapor density 0.14 (vs air)

Solubility slightly soluble in H2O; Insoluble in ethanol

Form gas

colorless

The Odor is tasteless

Water solubility 8.61mL/1000gH2O(101.32kPa,0°C)[KIR78]; Henry'slawconstants,k×10? For. 856 (104 ° C), 6.739 (149.4 ° C), 2.524 (250.6 ° C) and 1.796 (275.1 ° C) [POT78]

Merck13, 4645

Dielectricconstant1.0 (-269ºC)

Stable and stable; Very unlikely to react. LogP0.280



 

nature

Melting point -272.2 °C(lit.)

Boiling point -268.934 °C(lit.)

Density 0.1785 (0ºC)

Vapor density 0.14 (vs air)

Solubility slightly soluble in H2O; Insoluble in ethanol

Form gas

colorless

The Odor is tasteless

Water solubility 8.61mL/1000gH2O(101.32kPa,0°C)[KIR78]; Henry'slawconstants,k×10? For. 856 (104 ° C), 6.739 (149.4 ° C), 2.524 (250.6 ° C) and 1.796 (275.1 ° C) [POT78]

Merck13, 4645

Dielectricconstant1.0 (-269ºC)

Stable and stable; Very unlikely to react. LogP0.280